Annual report pursuant to Section 13 and 15(d)

Basis of Presentation and Significant Accounting Policies - Schedule of Reconciliation of Beginning and Ending Level 3 Liabilities (Details)

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Basis of Presentation and Significant Accounting Policies - Schedule of Reconciliation of Beginning and Ending Level 3 Liabilities (Details) - Unobservable Inputs Level 3 [Member] - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Balance - January 1, $ 569 $ 1,476
Change in fair value of warrants potentially settleable in cash (Note 10) (306) (907)
Balance at September 30, $ 263 $ 569