CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current Assets:
Cash and cash equivalents	$ 5,056	$ 8,345
Accounts receivable, net of allowance for doubtful accounts of $5 at March 31, 2021 and December 31, 2020	493	577
Inventory, net	88	40
Other current assets	625	196
Total current assets	6,262	9,158
Property and equipment, net	112	155
Other assets	525	458
Operating lease right-of-use assets	1,462	1,557
Intangible assets, net of accumulated amortization	55	58
Goodwill	3,416	3,416
Total assets	11,832	14,802
Current Liabilities:
Accounts payable	974	1,007
Deferred revenue	777	903
Accrued expenses	1,006	1,130
Operating lease liabilities, current portion	435	421
Derivative liabilities	22,850	24,128
Notes payable, current portion	1,107	918
Total current liabilities	27,149	28,507
Other long-term liabilities	65	65
Notes payable, net of current portion	464	653
Lease liabilities, net of current portion	1,178	1,297
Pension obligation	2,518	2,531
Total liabilities	31,374	33,053
Mezzanine Equity:
Series D Convertible Redeemable Preferred Stock, $0.01 par value, designated 26,000 shares, 23,111 and 22,863 shares issued at March 31, 2021 and December 31, 2020, respectively and 22,757 and 22,863 shares outstanding at March 31, 2021 and December 31 2020, respectively; liquidation preference $22,757 and $22,863 at March 31, 2021 and December 31, 2020, respectively.	3,391	1,572
Shareholders' Deficit:
Common stock, $0.01 par value, 2,000,000,000 shares authorized; 276,749,448 and 180,096,317 shares issued at March 31, 2021 and December 31, 2020, respectively, and 276,742,744 and 180,089,613 shares outstanding at March 31, 2021 and December 31, 2020, respectively.	2,766	1,801
Additional paid in capital	191,585	193,652
Treasury stock, at cost 6,704 shares	(64)	(64)
Accumulated other comprehensive loss	(1,935)	(1,989)
Accumulated deficit	(215,287)	(213,225)
Total shareholders' deficit	(22,933)	(19,823)
Total liabilities, mezzanine equity and shareholders' deficit	11,832	14,802
Series A Preferred Stock
Shareholders' Deficit:
Preferred stock	0	0
Series A-1 Preferred Stock
Shareholders' Deficit:
Preferred stock	0	0
Series B Preferred Stock
Shareholders' Deficit:
Preferred stock	$ 2	$ 2