Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands |
Jun. 30, 2017 |
Dec. 31, 2016 |
|---|---|---|
| Cash Equivalents, at Carrying Value | $ 53,790 | $ 27,499 |
| Other Short-term Investments | $ 20,038 | $ 0 |
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- Definition Amount of short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of short-term investments classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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