Consolidated Statements of Stockholder's Equity (Unaudited) - USD ($) $ in Thousands	Total	Common stock [Member]	Additional paid-in capital [Member]	Accumulated other comprehensive income (loss) [Member]	Accumulated deficit [Member]
Beginning Balance at Dec. 31, 2020	$ 37,286	$ 76	$ 97,640	$ 4	$ (60,434)
Beginning Balance, Shares at Dec. 31, 2020		6,111,735
Stock-based compensation expense	542		542
Shares issued on exercise of warrants	236		236
Shares issued on exercise of warrants, Shares		35,217
Shares issued as settlement with trade vendor	23		23
Shares issued as settlement with trade vendor, Shares		2,965
Net loss	(7,999)				(7,999)
Ending Balance at Mar. 31, 2021	30,088	$ 76	98,441	4	(68,433)
Ending Balance, Shares at Mar. 31, 2021		6,149,917
Beginning Balance at Dec. 31, 2021	28,042	$ 79	121,545	4	(93,586)
Beginning Balance, Shares at Dec. 31, 2021		9,453,542
Stock-based compensation expense	823		823
Shares issued on exercise of warrants	24		24
Shares issued on exercise of warrants, Shares		3,709
Shares issued from purchase agreement with Virtu	91		91
Shares issued from purchase agreement with Virtu, Shares		12,742
Shares issued as settlement with trade vendor	26		26
Shares issued as settlement with trade vendor, Shares		3,584
Net loss	(7,573)				(7,573)
Ending Balance at Mar. 31, 2022	$ 21,433	$ 79	$ 122,509	$ 4	$ (101,159)
Ending Balance, Shares at Mar. 31, 2022		9,473,577