Consolidated Statements Of Redeemable Preferred Stock and Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Series F Convertible Preferred Stock	Series H Convertible Preferred Stock	Series I Preferred Stock	Common Stock	Common Stock Series H Convertible Preferred Stock	Additional Paid-in Capital	Additional Paid-in Capital Series F Convertible Preferred Stock	Additional Paid-in Capital Series H Convertible Preferred Stock	Convertible Preferred Stock Series F Convertible Preferred Stock	Accumulated Other Comprehensive Loss	Accumulated Deficit	Mezzanine Equity Series G Redeemable Preferred Stock	Mezzanine Equity Series H Convertible Preferred Stock	Mezzanine Equity Series I Preferred Stock
Balance (in shares) at Dec. 31, 2021					62,000
Beginning balance at Dec. 31, 2021	$ 25,208						$ 293,331			$ 34	$ (623)	$ (267,534)
Issuance of Series G Redeemable Preferred Stock, shares													154,000
Conversion of Convertible Preferred Stock								$ 251		(251)
Sale of common stock	5,849						5,849
Sale of common stock, shares					7,000
Redemption of Series G Redeemable Preferred Stock, shares													(154,000)
Deemed dividend on Series F Convertible Preferred Stock	217							$ (217)		$ 217
Stock-based compensation	611						611
Liability award reclass	596						596
Net loss	(10,386)											(10,386)
Foreign currency translation adjustments	(263)										(263)
Ending Balance (in shares) at Jun. 30, 2022					69,000
Ending balance at Jun. 30, 2022	21,615						300,421				(886)	(277,920)
Balance (in shares) at Mar. 31, 2022					62,000
Beginning balance at Mar. 31, 2022	20,599						293,573				(664)	(272,310)
Beginning balance, shares( preferred) at Mar. 31, 2022													154,000
Sale of common stock	5,849						5,849
Sale of common stock, shares					7,000
Redemption of Series G Redeemable Preferred Stock, shares													(154,000)
Deemed dividend on Series F Convertible Preferred Stock	0
Stock-based compensation	403						403
Liability award reclass	596						596
Net loss	(5,611)											(5,611)
Foreign currency translation adjustments	(222)										(222)
Ending Balance (in shares) at Jun. 30, 2022					69,000
Ending balance at Jun. 30, 2022	$ 21,615						300,421				(886)	(277,920)
Balance (in shares) at Dec. 31, 2022	77,000				77,000
Beginning balance at Dec. 31, 2022	$ 4,889						301,790				(733)	(296,168)
Beginning balance, shares( preferred) at Dec. 31, 2022		0
Issuance of Series H Convertible Preferred Stock (Shares)														175,000
Issuance of Series H Convertible Preferred Stock			$ (7,762)						$ (7,762)					$ 10,500
Issuance of Series I Redeemable Preferred Stock ( shares)															85,000
Conversion of Convertible Preferred Stock			10,980			$ 1			10,979					$ (10,980)
Conversion of Convertible Preferred Stock, shares						655,000								(183,000)
Sale of common stock	8,503						8,503
Sale of common stock, shares					172,000
Deemed dividend on Series F Convertible Preferred Stock	0
Stock-based compensation	925						925
Issuance of stock from RSUs, net, shares					1,000
Exercise of common stock warrants	114						114
Exercise of common stock warrants, shares					114,000
Exercise of Series H Warrants (Shares)														20,000
Exercise of Series H Warrants			$ (430)						(430)					$ 1,200
Net loss	(10,717)											(10,717)
Foreign currency translation adjustments	119										119
Ending Balance,( preferred) at Jun. 30, 2023	$ 720													$ 720
Ending balance, shares( preferred) at Jun. 30, 2023		0	12,000	85,000									12,000	12,000	85,000
Ending Balance (in shares) at Jun. 30, 2023	1,019,000				1,019,000
Ending balance at Jun. 30, 2023	$ 6,621				$ 1		314,119				(614)	(306,885)
Balance (in shares) at Mar. 31, 2023					263,000
Beginning balance at Mar. 31, 2023	8,158						310,828				(653)	(302,017)
Issuance of Series H Convertible Preferred Stock (Shares)														175,000
Issuance of Series H Convertible Preferred Stock			$ (7,762)						(7,762)					$ 10,500
Issuance of Series I Redeemable Preferred Stock ( shares)															85,000
Conversion of Convertible Preferred Stock			10,980			$ 1			10,979					$ (10,980)
Conversion of Convertible Preferred Stock, shares						655,000								(183,000)
Deemed dividend on Series F Convertible Preferred Stock	0
Stock-based compensation	404						404
Issuance of stock from RSUs, net, shares					1,000
Exercise of common stock warrants	100						100
Exercise of common stock warrants, shares					100,000
Exercise of Series H Warrants (Shares)														20,000
Exercise of Series H Warrants			$ (430)						$ (430)					$ 1,200
Net loss	(4,868)											(4,868)
Foreign currency translation adjustments	39										39
Ending Balance,( preferred) at Jun. 30, 2023	$ 720													$ 720
Ending balance, shares( preferred) at Jun. 30, 2023		0	12,000	85,000									12,000	12,000	85,000
Ending Balance (in shares) at Jun. 30, 2023	1,019,000				1,019,000
Ending balance at Jun. 30, 2023	$ 6,621				$ 1		$ 314,119				$ (614)	$ (306,885)