Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares designated	100,000	100,000
Common stock, par value	$ 0.006	$ 0.006
Common stock, shares authorized	180,000,000	180,000,000
Common stock, shares issued	3,178,738	3,160,877
Common stock, shares outstanding	3,178,738	3,160,877
Treasury stock, shares	5,594	5,594
Series C convertible Preferred Stock [Member]
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares designated	1,200	1,200
Preferred stock, shares issued	100	100
Preferred stock, shares outstanding	100	100
Preferred stock, liquidation preference value	$ 510,000	$ 510,000
Series D Convertible Preferred Stock [Member]
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares designated	220	220
Preferred stock, shares issued	40	40
Preferred stock, shares outstanding	40	40
Preferred stock, liquidation preference value	$ 12,000	$ 12,000
Series E Convertible Preferred Stock [Member]
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares designated	3,500	3,500
Preferred stock, shares issued	267	267
Preferred stock, shares outstanding	267	267
Preferred stock, liquidation preference value	$ 1,859,787	$ 1,859,787
Series F Convertible Preferred Stock [Member]
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares designated	2,200	2,200
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Series G Convertible Preferred Stock [Member]
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares designated	6,000	6,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0