Accounts Payable and Accrued Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	[1]	Dec. 31, 2015
Accounts Payable and Accrued Liabilities [Abstract]
Accounts payable	$ 1,593		$ 2,798
Accrued expenses	3,212		5,021
Accrued payroll and bonus	1,904		1,126
Other current liabilities	435		432
Total	$ 7,144		$ 9,377

[1] Reflects the effect of the Asterias Deconsolidation.