Annual report pursuant to Section 13 and 15(d)

Significant Accounting Policies (Schedule of Potentially Dilutive Securities) (Details)

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Significant Accounting Policies (Schedule of Potentially Dilutive Securities) (Details) - shares
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Potentially dilutive securities 7,316,869 8,565,018
Warrants [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Potentially dilutive securities 3,308,654 5,402,670
Options [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Potentially dilutive securities 1,141,675 1,141,675
Preferred Class A [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Potentially dilutive securities 250,000 250,000
Restricted Stock Awards [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Potentially dilutive securities 280,983 302,114
Restricted Stock Units [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Potentially dilutive securities 2,335,557 1,468,559