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Derivative Warrant Liabilities - Schedule of Valuation of Derivative Warrant Liabilities (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015
Balances at November 28, 2016 | $ 575 |
Exercised |  |
Cancelled |  |
Changes in fair value | (262) |
Balances at December 31, 2016 | 313 | 575
Series A (2011) [Member] |  |
Balances at November 28, 2016 |  |
Exercised |  |
Cancelled |  |
Changes in fair value |  |
Balances at December 31, 2016 |  |
Series A (2013) [Member] |  |
Balances at November 28, 2016 | 43 |
Exercised |  |
Cancelled |  |
Changes in fair value | (31) |
Balances at December 31, 2016 | 12 | 43
Series A (2013) [Member] |  |
Balances at November 28, 2016 | 18 |
Exercised |  |
Cancelled |  |
Changes in fair value | (9) |
Balances at December 31, 2016 | 9 | 18
Series A (2015) [Member] |  |
Balances at November 28, 2016 | 45 |
Exercised |  |
Cancelled |  |
Changes in fair value | (23) |
Balances at December 31, 2016 | 22 | 45
Series A (2016) [Member] |  |
Balances at November 28, 2016 | 81 |
Exercised |  |
Cancelled |  |
Changes in fair value | (38) |
Balances at December 31, 2016 | 43 | 81
Series B (2016) [Member] |  |
Balances at November 28, 2016 | 388 |
Exercised |  |
Cancelled |  |
Changes in fair value | (161) |
Balances at December 31, 2016 | $ 227 | $ 388

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- Definition Amount of expense (income) related to adjustment to fair value of warrant liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section 25 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6939902&loc=d3e20148-110875 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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