CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Common Stock	Additional Paid in Capital.	Accumulated Deficit	Total
Beginning Balance at Dec. 31, 2020	$ 5	$ 82,286	$ (67,221)	$ 15,070
Beginning Balance (in shares) at Dec. 31, 2020	4,542
Issuance of common stock, net of fees	$ 2	14,451		14,453
Issuance of common stock, net of fees (in shares)	1,989
Exercise of warrants, net of fees		4,157		4,157
Exercise of warrants, net of fees (in shares)	429
Stock-based compensation		329		329
Net loss			(4,255)	(4,255)
Ending Balance at Jun. 30, 2021	$ 7	101,223	(71,476)	29,754
Ending Balance (in shares) at Jun. 30, 2021	6,960
Beginning Balance at Mar. 31, 2021	$ 7	101,034	(69,668)	31,373
Beginning Balance (in shares) at Mar. 31, 2021	6,960
Stock-based compensation		189		189
Net loss			(1,808)	(1,808)
Ending Balance at Jun. 30, 2021	$ 7	101,223	(71,476)	29,754
Ending Balance (in shares) at Jun. 30, 2021	6,960
Beginning Balance at Dec. 31, 2021	$ 7	103,111	(77,661)	25,457
Beginning Balance (in shares) at Dec. 31, 2021	7,160
Stock-based compensation		430		430
Net loss			(6,367)	(6,367)
Ending Balance at Jun. 30, 2022	$ 7	103,541	(84,028)	19,520
Ending Balance (in shares) at Jun. 30, 2022	7,160
Beginning Balance at Mar. 31, 2022	$ 7	103,328	(81,020)	22,315
Beginning Balance (in shares) at Mar. 31, 2022	7,160
Stock-based compensation		213		213
Net loss			(3,008)	(3,008)
Ending Balance at Jun. 30, 2022	$ 7	$ 103,541	$ (84,028)	$ 19,520
Ending Balance (in shares) at Jun. 30, 2022	7,160