Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current assets
Cash	$ 1	$ 1
Total current assets	1	1
Total assets	1	1
Current liabilities
Accounts payable	2,255	2,257
Due to related party	4	4
Accrued expenses	2,394	2,112
Accrued dividends	4,460	4,083
Notes payable	6,393	6,318
Total current liabilities	15,506	14,774
Total liabilities	15,506	14,774
Stockholders’ deficit
Common stock, $0.006 par value; 180,000,000 shares designated,11,630,709 and 11,112,709 shares issued and outstanding as of March 31, 2021 and December 31, 2020, respectively	70	67
Additional paid-in capital	30,347	29,772
Accumulated deficit	(45,922)	(44,612)
Total stockholders’ deficit	(15,505)	(14,773)
Total liabilities and stockholders’ deficit	1	1
Series C Convertible Preferred Stock [Member]
Stockholders’ deficit
Preferred stock
Series D Convertible Preferred Stock [Member]
Stockholders’ deficit
Preferred stock
Series E Convertible Preferred Stock [Member]
Stockholders’ deficit
Preferred stock
Series F Convertible Preferred Stock [Member]
Stockholders’ deficit
Preferred stock