Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock Outstanding [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Parent [Member]	Noncontrolling Interest [Member]	Total
Balance (in shares) at Dec. 31, 2020	31,029,642		(353,063)
Balance at Dec. 31, 2020	$ 31	$ 171,616	$ (413)	$ (149,681)	$ (4,406)			$ 17,147
Common stock issued for compensation, services, and royalty payments (in shares)	40,188		0
Common stock issued for compensation, services, and royalty payments	$ 0	2,551	$ 0	0	0			2,551
Net loss, parent	0	0	0	(17,952)	0			(17,952)
Net loss, NCI								0
Net loss								(17,952)
Other comprehensive income (loss)	$ 0	0	$ 0	0	(22)			(22)
Balance (in shares) at Mar. 31, 2021	46,839,982		(353,063)
Balance at Mar. 31, 2021	$ 47	216,527	$ (413)	(167,633)	(4,428)			44,100
Issuance of common stock via equity raises (in shares)	15,555,556		0
Issuance of common stock via equity raises	$ 16	42,360	$ 0	0	0			42,376
Common stock issued for cashless exercises of stock options (in shares)	214,596		0
Common stock issued for cashless exercises of stock options	$ 0	0	$ 0	0	0			0
Balance (in shares) at Dec. 31, 2021	82,259,739		(353,063)
Balance at Dec. 31, 2021	$ 82	311,487	$ (413)	(210,934)	(3,995)	$ 96,227	$ 39	96,266
Common stock issuable for acquisition (in shares)	125,000		0
Common stock issuable for acquisition	$ 0	250	$ 0	0	0	250	0	250
Common stock issued for compensation, services, and royalty payments (in shares)	795,384		0
Common stock issued for compensation, services, and royalty payments	$ 1	(1,694)	$ 0	0	0	(1,693)	0	(1,693)
Common stock issued for debt repayment (in shares)	2,653,365		0
Common stock issued for debt repayment	$ 3	4,442	$ 0	0	0	4,445	0	4,445
Common stock issued to lenders for OID for $105 million debt - (reissued) (in shares)	54,026		0
Common stock issued to lenders for OID for $105 million debt - (reissued)	$ 0	0	$ 0	0	0	0	0	0
Net loss, parent	0	0	0	(37,601)	0	(37,601)		(37,601)
Net loss, NCI							(22)	(22)
Net loss								(37,623)
Other comprehensive income (loss)	$ 0	0	$ 0	0	6	6	0	6
Balance (in shares) at Mar. 31, 2022	85,887,514		(353,063)
Balance at Mar. 31, 2022	$ 86	$ 314,485	$ (413)	$ (248,535)	$ (3,989)	$ 61,634	$ 17	$ 61,651