Condensed Consolidated Statements of Shareholders' Deficit (Unaudited) - USD ($) $ in Thousands	Series D Preferred Stock Dividends [Member] Preferred Stock Outstanding [Member] Series A Preferred Stock [Member]	Series D Preferred Stock Dividends [Member] Preferred Stock Outstanding [Member] Series A-1 Preferred Stock [Member]	Series D Preferred Stock Dividends [Member] Preferred Stock Outstanding [Member] Series B Preferred Stock [Member]	Series D Preferred Stock Dividends [Member] Common Stock [Member]	Series D Preferred Stock Dividends [Member] Treasury Stock [Member]	Series D Preferred Stock Dividends [Member] Additional Paid-in Capital [Member]	Series D Preferred Stock Dividends [Member] AOCI Attributable to Parent [Member]	Series D Preferred Stock Dividends [Member] Retained Earnings [Member]	Series D Preferred Stock Dividends [Member]	Series A Preferred Stock Dividends [Member] Preferred Stock Outstanding [Member] Series A Preferred Stock [Member]	Series A Preferred Stock Dividends [Member] Preferred Stock Outstanding [Member] Series A-1 Preferred Stock [Member]	Series A Preferred Stock Dividends [Member] Preferred Stock Outstanding [Member] Series B Preferred Stock [Member]	Series A Preferred Stock Dividends [Member] Common Stock [Member]	Series A Preferred Stock Dividends [Member] Treasury Stock [Member]	Series A Preferred Stock Dividends [Member] Additional Paid-in Capital [Member]	Series A Preferred Stock Dividends [Member] AOCI Attributable to Parent [Member]	Series A Preferred Stock Dividends [Member] Retained Earnings [Member]	Series A Preferred Stock Dividends [Member]	Series A-1 Preferred Stock Dividends [Member] Preferred Stock Outstanding [Member] Series A Preferred Stock [Member]	Series A-1 Preferred Stock Dividends [Member] Preferred Stock Outstanding [Member] Series A-1 Preferred Stock [Member]	Series A-1 Preferred Stock Dividends [Member] Preferred Stock Outstanding [Member] Series B Preferred Stock [Member]	Series A-1 Preferred Stock Dividends [Member] Common Stock [Member]	Series A-1 Preferred Stock Dividends [Member] Treasury Stock [Member]	Series A-1 Preferred Stock Dividends [Member] Additional Paid-in Capital [Member]	Series A-1 Preferred Stock Dividends [Member] AOCI Attributable to Parent [Member]	Series A-1 Preferred Stock Dividends [Member] Retained Earnings [Member]	Series A-1 Preferred Stock Dividends [Member]	Conversion of Series A Preferred to Common Stock [Member] Preferred Stock Outstanding [Member] Series A Preferred Stock [Member]	Conversion of Series A Preferred to Common Stock [Member] Preferred Stock Outstanding [Member] Series A-1 Preferred Stock [Member]	Conversion of Series A Preferred to Common Stock [Member] Preferred Stock Outstanding [Member] Series B Preferred Stock [Member]	Conversion of Series A Preferred to Common Stock [Member] Common Stock [Member]	Conversion of Series A Preferred to Common Stock [Member] Treasury Stock [Member]	Conversion of Series A Preferred to Common Stock [Member] Additional Paid-in Capital [Member]	Conversion of Series A Preferred to Common Stock [Member] AOCI Attributable to Parent [Member]	Conversion of Series A Preferred to Common Stock [Member] Retained Earnings [Member]	Conversion of Series A Preferred to Common Stock [Member]	Conversion of Series A-1 Preferred to Common Stock [Member] Preferred Stock Outstanding [Member] Series A Preferred Stock [Member]	Conversion of Series A-1 Preferred to Common Stock [Member] Preferred Stock Outstanding [Member] Series A-1 Preferred Stock [Member]	Conversion of Series A-1 Preferred to Common Stock [Member] Preferred Stock Outstanding [Member] Series B Preferred Stock [Member]	Conversion of Series A-1 Preferred to Common Stock [Member] Common Stock [Member]	Conversion of Series A-1 Preferred to Common Stock [Member] Treasury Stock [Member]	Conversion of Series A-1 Preferred to Common Stock [Member] Additional Paid-in Capital [Member]	Conversion of Series A-1 Preferred to Common Stock [Member] AOCI Attributable to Parent [Member]	Conversion of Series A-1 Preferred to Common Stock [Member] Retained Earnings [Member]	Conversion of Series A-1 Preferred to Common Stock [Member]	Preferred Stock Outstanding [Member] Series A Preferred Stock [Member]	Preferred Stock Outstanding [Member] Series A-1 Preferred Stock [Member]	Preferred Stock Outstanding [Member] Series B Preferred Stock [Member]	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2020																																														14,911	14,782	239,400	180,096,317	(6,704)
Balance at Dec. 31, 2020																																														$ 0	$ 0	$ 2	$ 1,801	$ (64)	$ 193,652	$ (1,989)	$ (213,225)	$ (19,823)
Accretion of Preferred Stock discount																																														$ 0	$ 0	$ 0	$ 0	$ 0	(1,817)	0	0	(1,817)
Shares issued pursuant to option exchange and RSU vesting (in shares)																																														0	0	0	161,168	0
Stock-based compensation expense																																														$ 0	$ 0	$ 0	$ 2	$ 0	76	0	0	78
Dividends	$ 0	$ 0	$ 0	$ 0	$ 0	$ (248)	$ 0	$ 0	$ (248)
Foreign currency translation adjustment																																														0	0	0	0	0	0	54	0	54
Net loss																																														$ 0	$ 0	$ 0	$ 0	$ 0	0	0	(1,885)	(1,885)
Issuance of common stock in lieu of cash (in shares)																																														0	0	0	242,647	0
Issuance of common stock in lieu of cash																																														$ 0	$ 0	$ 0	$ 2	$ 0	19	0	0	21
Issuance of common stock pursuant to warrant exercise (in shares)																																														0	0	0	400	0
Issuance of common stock pursuant to warrant exercise																																														$ 0	$ 0	$ 0	$ 0	$ 0	0	0	0	0
Conversion of stock (in shares)																												(8,762)	0	0	43,819,500	0					0	(8,860)	0	44,300,000	0					0	0	0	6,115,324	0
Conversion of stock																												$ 0	$ 0	$ 0	$ 438	$ 0	$ (438)	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 443	$ 0	$ (443)	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 59	$ 0	630	0	(2)	687
Dividends on preferred stock (in shares)										0	0	0	1,050,826	0					0	0	0	963,266	0
Dividends on preferred stock										$ 0	$ 0	$ 0	$ 11	$ 0	$ 81	$ 0	$ (92)	$ 0	$ 0	$ 0	$ 0	$ 10	$ 0	$ 73	$ 0	$ (83)	$ 0
Balance (in shares) at Mar. 31, 2021																																														6,149	5,922	239,400	276,749,448	(6,704)
Balance at Mar. 31, 2021																																														$ 0	$ 0	$ 2	$ 2,766	$ (64)	191,585	(1,935)	(215,287)	(22,933)
Balance (in shares) at Dec. 31, 2021																																														0	0	239,400	347,240,045	(6,704)
Balance at Dec. 31, 2021																																														$ (0)	$ (0)	$ 2	$ 3,471	$ (64)	187,148	(1,396)	(204,253)	(15,092)
Accretion of Preferred Stock discount																																														$ 0	$ 0	$ 0	$ 0	$ 0	(1,531)	0	0	$ (1,531)
Shares issued pursuant to option exchange and RSU vesting (in shares)																																														0	0	0	41,901	0				41,901
Stock-based compensation expense																																														$ 0	$ 0	$ 0	$ 0	$ 0	592	0	0	$ 592
Dividends	$ 0	$ 0	$ 0	$ 0	$ 0	$ (253)	$ 0	$ 0	$ (253)
Foreign currency translation adjustment																																														0	0	0	0	0	0	21	0	21
Net loss																																														$ 0	$ 0	$ 0	$ 0	$ 0	0	0	(2,698)	(2,698)
Balance (in shares) at Mar. 31, 2022																																														0	0	239,400	347,281,946	(6,704)
Balance at Mar. 31, 2022																																														$ 0	$ 0	$ 2	$ 3,471	$ (64)	$ 185,956	$ (1,375)	$ (206,951)	$ (18,961)