Organization (Details Textual) - USD ($) $ in Thousands |
1 Months Ended | 3 Months Ended | |||||
|---|---|---|---|---|---|---|---|
May 02, 2017 |
Apr. 30, 2017 |
Mar. 31, 2017 |
Mar. 31, 2016 |
Jan. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
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| Organization [Line Items] | |||||||
| Retained Earnings (Accumulated Deficit), Total | $ (123,334) | $ (114,861) | |||||
| Cash and Cash Equivalents, at Carrying Value, Total | 9,426 | $ 12,314 | $ 16,846 | $ 19,552 | |||
| Net Cash Provided by (Used in) Operating Activities, Continuing Operations, Total | (7,254) | $ (6,789) | |||||
| Restricted Cash and Cash Equivalents | 6,678 | $ 6,206 | |||||
| Unrestricted Cash And Cash Equivalents | $ 2,748 | ||||||
| Subsequent Event [Member] | |||||||
| Organization [Line Items] | |||||||
| Stock Issued During Period, Shares, New Issues | 89,286 | 3,732 | |||||
| Class of Warrant or Right, Number of Securities Called by Warrants or Rights | 1,866 | ||||||
| Proceeds from Issuance of Common Stock | $ 10,900 | ||||||
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The carrying amounts of cash and cash equivalent items which are unrestricted. No definition available.
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| X | ||||||||||
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes 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 Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of cash inflow (outflow) from operating activities, excluding discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The cash inflow from the additional capital contribution to the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Number of new stock issued during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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