Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets
Cash	$ 76	$ 1
Prepaid expenses	120
Total current assets	196	1
Total assets	196	1
Current liabilities
Accounts payable	2,309	2,257
Due to related parties	46	4
Accrued expenses	3,110	2,112
Accrued dividends	5,477	4,083
Term loan	5,677	5,677
Convertible notes payable, net	986	641
Derivative liability	7,697
Total current liabilities	25,302	14,774
Total liabilities	25,302	14,774
Commitments and contingencies (Note 9)
Stockholders’ deficit
Preferred stock
Common stock, $0.006 par value; 180,000,000 shares authorized, 16,998,836 and 11,112,708 shares issued and outstanding as of December 31, 2021 and 2020, respectively	102	67
Additional paid-in capital	27,809	29,772
Accumulated deficit	(53,017)	(44,612)
Total stockholders’ deficit	(25,106)	(14,773)
Total liabilities and stockholders’ deficit	196	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 Convertiable Preferred Stock [Member]
Stockholders’ deficit
Preferred stock
Series G Convertiable Preferred Stock [Member]
Stockholders’ deficit
Preferred stock