Derivative Liabilities - Schedule of Change in Derivative Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative liabilities, beginning balance	$ 147	$ 326
Initial valuation of derivative liabilities upon issuance of warrants		66
Change in fair value of derivative liabilities	216	(245)
Derivative liabilities, Ending balance	$ 363	$ 147