Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets
Cash	$ 50	$ 3,918
Accounts receivable, net of allowance	0	48
Inventory	0	242
Prepaid expenses and other assets	370	469
Total current assets	420	4,677
Furniture and fixtures, net of depreciation	0	72
Intangible assets, net of amortization	0	392
Total assets	420	5,141
Current liabilities
Accounts payable	1,403	270
Due to related party	4	28
Accrued expenses	1,005	852
Accrued dividends	2,565	1,064
Notes payable	5,330	0
Total current liabilities	10,307	2,214
Commitments and contingencies (Note 11)
Stockholders’ equity
Common stock, $0.006 par value; 180,000,000 shares authorized, 10,869,530 and 10,761,684 shares issued and outstanding as of December 31, 2019 and 2018, respectively	65	65
Additional paid-in capital	29,375	28,710
Accumulated deficit	(39,327)	(25,848)
Total stockholders’ equity	(9,887)	2,927
Total liabilities and stockholders’ equity	420	5,141
Series C Convertible Preferred Stock
Stockholders’ equity
Preferred Stock Value	0	0
Series D Convertible Preferred Stock
Stockholders’ equity
Preferred Stock Value	0	0
Series E Convertible Preferred Stock
Stockholders’ equity
Preferred Stock Value	0	0
Series F Convertible Preferred Stock
Stockholders’ equity
Preferred Stock Value	$ 0	$ 0