COMMON STOCK, AUTHORIZED (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Apr. 26, 2022	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Common stock, number of shares, par value and other disclosures
Common stock, authorized	2,000,000		2,000,000				2,000,000
Common stock, par value (in dollars per share)	$ 0.00001		$ 0.00001		$ 0.00001		$ 0.00001
Common stock, issued	1,391,160		1,391,160				1,370,595
Common stock, outstanding	1,391,160		1,391,160				1,370,595
Restricted stock awards, forfeited	54		54
Proceeds from exercise of warrants				$ 8,509
2018 Warrants
Common stock, number of shares, par value and other disclosures
Shares issued on exercise of warrants	0	0	0	0
Common Stock
Common stock, number of shares, par value and other disclosures
Common stock, issued	1,391,160	1,370,595	1,391,160	1,370,595		1,370,595	1,370,595	1,370,593	945,276
Issuance of common stock upon vesting of restricted stock units (in shares)		2		2
Fractional shares issued due to 1 for 25 reverse stock split	20,619		20,619
October 2020 Offering | Common Stock
Common stock, number of shares, par value and other disclosures
Proceeds from issuance of common stock and warrants, net of issuance costs				$ 8,500
October 2020 Offering | Common Stock | Series A Prefunded Warrants October 2020
Common stock, number of shares, par value and other disclosures
Issuance of common stock and warrants in public offerings (in shares)				424,829
October 2020 Offering | Common Stock | Placement Agent Warrants
Common stock, number of shares, par value and other disclosures
Issuance of common stock and warrants in public offerings (in shares)				488