CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Series A Preferred Stock	Series B Preferred Stock	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Total
Beginning balance, shares at Dec. 31, 2018	0	1,396	141,041
Beginning balance, amount at Dec. 31, 2018	$ 0	$ 1	$ 141	$ 0	$ 649	$ 791
Effect of reverse merger, shares			2,377,530
Effect of reverse merger, amount			$ 2,378	(2,378)		0
Conversion of Series A convertible preferred stock, shares	(2)		38,081
Conversion of Series A convertible preferred stock, amount			$ 38	(38)		0
Conversion of Series B convertible preferred stock, shares		(1,396)	13,963,048
Conversion of Series B convertible preferred stock, amount		$ (1)	$ 13,963	(13,962)		0
Issuance of common stock and warrants in a private offering, net of warrant liability, shares	206		1,551,466
Issuance of common stock and warrants in a private offering, net of warrant liability, amount			$ 1,551	18,186		19,737
Offering cost related to private offering				(4,339)		(4,339)
Cash distributions to CCD Members				(17,430)	(979)	(18,409)
Reclassification of liability awards to equity						0
Accrued dividends payable on Series A convertible preferred stock						0
Stock compensation, shares			902,662
Stock compensation, amount			$ 903	2,916		3,819
Net loss					(2,146)	(2,146)
Ending balance, shares at Dec. 31, 2019	204	0	18,973,828
Ending balance, amount at Dec. 31, 2019	$ 0	$ 0	$ 18,974	(17,045)	(2,476)	(547)
Conversion of Series A convertible preferred stock, shares			16,925
Conversion of Series A convertible preferred stock, amount			$ 17	(17)		0
Reclassification of liability awards to equity				1,638		1,638
Accrued dividends payable on Series A convertible preferred stock				(1,650)		(1,650)
Stock compensation, amount				1,750		1,750
Net loss					(7,187)	(7,187)
Ending balance, shares at Dec. 31, 2020	204	0	18,990,753
Ending balance, amount at Dec. 31, 2020	$ 0	$ 0	$ 18,991	$ (15,324)	$ (9,663)	$ (5,996)