Stockholders' Equity (Details Textual) - USD ($)
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1 Months Ended |
6 Months Ended |
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Jun. 08, 2017 |
Apr. 07, 2017 |
Mar. 13, 2017 |
Mar. 13, 2016 |
Mar. 31, 2017 |
Feb. 28, 2017 |
Jan. 31, 2017 |
Sep. 30, 2016 |
Jul. 27, 2016 |
Mar. 17, 2015 |
Jun. 30, 2017 |
Jun. 30, 2016 |
Dec. 31, 2016 |
Apr. 30, 2015 |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Common Stock, Shares, Issued |
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25,221,889
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15,165,244
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| Common Stock, Shares Authorized |
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50,000,000
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50,000,000
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| Common Stock, Par or Stated Value Per Share |
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$ 0.0001
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$ 0.0001
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| Warrants Issued |
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16,000
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2,134,193
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| Allocated Share-based Compensation Expense |
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$ 52
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| Payments of Stock Issuance Costs |
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$ 5,671,000
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$ 0
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| Preferred Stock, Shares Authorized |
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2,000,000
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2,000,000
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| Preferred Stock, Par or Stated Value Per Share |
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$ 0.0001
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$ 0.0001
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| Share Price |
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$ 5.73
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| Stock Issued During Period, Value, Issued for Services |
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$ 1,700,000
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$ 1,232,000
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| Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights |
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The remaining 50% (“The Performance Options”) vest and become exercisable upon the occurrence of the following milestones being achieved: (i) 25% of the Performance Options vest upon the dosing of the first patient in the first Phase 2 clinical trial of any Company product candidate, (ii) 25% of the Performance Options vest upon the dosing of the first patient in the first Phase 2 clinical trial of a second Company product candidate, (iii) 25% of the Performance Options vest upon the Company’s achievement of a fully-diluted market capitalization of $500,000,000 and (iv) 25% of the Performance Options vest upon the Company’s achievement of a fully-diluted market capitalization of $1,000,000,000.
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value |
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$ 5,500,000
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| Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate |
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0.00%
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| Class Of Warrant Or Right, Percentage Of Warrant Issued |
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25.00%
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| Director [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Allocated Share-based Compensation Expense |
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$ 52
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| Restricted Stock [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Allocated Share-based Compensation Expense |
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$ 1,000,000
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross |
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180,000
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term |
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3 years 9 months 18 days
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value |
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$ 50,000
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| Restricted Stock [Member] | Director [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross |
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180,000
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| Restricted Stock Units (RSUs) [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Allocated Share-based Compensation Expense |
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$ 600,000
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross |
110,000
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110,000
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term |
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2 years 6 months
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| Employee Stock Option [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Allocated Share-based Compensation Expense |
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$ 2,800,000
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| Shares Issued, Price Per Share |
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$ 5.73
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| Stock Issued During Period, Shares, Issued for Services |
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200,000
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term |
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1 year 9 months 18 days
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| City Of Hope [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Stock Issued During Period, Shares, Issued for Services |
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293,588
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| Share Price |
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$ 5.73
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| General and Administrative Expense [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Allocated Share-based Compensation Expense |
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$ 1,200,000
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| Common Stock [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Common Stock, Shares, Issued |
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7,000,000
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| Unregistered Common Stock [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Stock Issued During Period, Shares, New Issues |
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64,000
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8,536,774
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| Series A Preferred Stock [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Preferred Stock, Shares Issued |
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250,000
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250,000
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| Common Stock, Shares Authorized |
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250,000
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| Stock Issued During Period, Shares, New Issues |
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0
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| Shares, Outstanding |
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250,000
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250,000
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| Stock Issued During Period, Shares, Issued for Services |
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0
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| Stock Issued During Period, Value, Issued for Services |
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$ 0
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| Common Class B [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Stock Repurchased and Retired During Period, Shares |
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7,200,000
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| Common Class A [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Common Stock, Shares, Issued |
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1,000,000
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1,000,000
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| Stock Issued During Period, Shares, New Issues |
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0
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| Shares, Outstanding |
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1,000,000
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1,000,000
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| Stock Issued During Period, Shares, Issued for Services |
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0
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| Stock Issued During Period, Value, Issued for Services |
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$ 0
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| Preferred Class A [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Preferred Stock, Shares Issued |
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250,000
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| Preferred Stock, Shares Authorized |
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2,000,000
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| Preferred Stock, Par or Stated Value Per Share |
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$ 0.0001
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| Fortress Biotech, Inc [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Shares Of Common Stock, Percentage |
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2.50%
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| Shares Issued, Price Per Share |
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$ 5.73
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| Stock Issued During Period, Shares, Issued for Services |
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767,264
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| Stock Issued During Period, Value, Issued for Services |
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$ 4,400,000
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| Fortress Biotech, Inc [Member] | Common Stock [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Stock Issued During Period, Shares, New Issues |
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215,019
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| Fortress Biotech, Inc [Member] | Common Class B [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Common Stock, Shares, Issued |
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250,000
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| Diluted Outstanding Equity, Percentage |
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2.50%
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| City of Hope National Medical Center [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Stock Issued During Period, Shares, New Issues |
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293,588
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| City of Hope National Medical Center [Member] | Original Agreement [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Payment Of Upfront Fees |
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$ 2,000,000
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| City of Hope National Medical Center [Member] | Common Stock [Member] | Original Agreement [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Shares, Issued |
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293,588
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| City of Hope National Medical Center [Member] | Common Class A [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Shares, Issued |
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1,000,000
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| City of Hope National Medical Center [Member] | Common Class A [Member] | Original Agreement [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |
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10.00%
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| Shares, Outstanding |
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1,000,000
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| National Securities, Inc [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Percentage Of Placement Agent Fee |
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10.00%
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| Percentage Of Shares Issued To Placement Agent |
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10.00%
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| Warrants Issued |
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6,400
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853,677
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| Private Placement [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Warrant Purchase Price Per Unit |
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$ 65,000
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| Stock Issued During Period, Shares, New Issues |
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10,000
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| Class of Warrant or Right, Number of Securities Called by Warrants or Rights |
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2,500
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| Class of Warrant or Right, Exercise Price of Warrants or Rights |
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$ 8.50
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| Private Placement [Member] | National Holdings Corporation [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Percentage Of Placement Agent Fee |
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10.00%
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10.00%
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| Percentage Of Shares Issued To Placement Agent |
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10.00%
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10.00%
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| Payments of Stock Issuance Costs |
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$ 42,000
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$ 5,500,000
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| Proceeds from Issuance of Private Placement |
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$ 400,000
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$ 55,500,000
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