Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities
Net income (loss)	$ 9,871	$ (6,652)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation and amortization	43	54
Loss on disposal of fixed assets	82	0
Stock-based compensation	942	449
Issuance of common stock as compensation in lieu of cash	46	0
Deferred stock issuance costs	364	0
Application of rent deposit in lieu of cash payments	0	89
Gain on extinguishment of debt and derivative liability, net	(1,270)	0
Change in fair value of derivative liabilities	(16,558)	(369)
Change in assets and liabilities:
Accounts receivable	133	184
Inventory	(45)	593
Other assets	(264)	36
Operating lease right-of-use assets	(31)	(13)
Accounts payable	(304)	863
Deferred revenue	302	(374)
Accrued expense	(116)	37
Pension obligation	41	124
Net cash used in operating activities	(6,764)	(4,979)
Cash flows from investing activities
Purchase of property and equipment	(48)	0
Net cash used in investing activities	(48)	0
Cash flows from financing activities
Proceeds from issuance of Common Stock, net	100	2,296
Proceeds from issuance of related party notes payable	0	900
Proceeds from issuance of note payable to bank	0	3,758
Dividends paid	(25)	(25)
Proceeds from exercised stock options	0	0
Net cash provided by financing activities	75	6,929
Effect of exchange rate changes on cash and cash equivalents	64	(74)
Net increase (decrease) in cash and cash equivalents	(6,673)	1,876
Cash and cash equivalents at beginning of period	8,345	1,030
Cash and cash equivalents at end of period	1,672	2,906
Supplemental disclosure of cash flow information:
Cash paid for interest	0	35
Cash paid for income taxes	0	0
Summary of non-cash investing and financing activities:
Issuance of common stock for financing facility	70	400
Conversion of Preferred Stock into Common Stock	70	400
Conversion of Series A-1 Preferred to Common Stock [Member]
Summary of non-cash investing and financing activities:
Issuance of common stock for financing facility	739	5
Conversion of Preferred Stock into Common Stock	739	5
Exchange of Series A Preferred Stock for Series A-1 Preferred Stock [Member]
Summary of non-cash investing and financing activities:
Preferred stock exchange	0	2,272
Conversion of Series A Preferred to Common Stock [Member]
Summary of non-cash investing and financing activities:
Issuance of common stock for financing facility	745	0
Conversion of Preferred Stock into Common Stock	745	0
Series A Preferred Stock [Member]
Summary of non-cash investing and financing activities:
Stock dividends	150	25
Series A-1 Preferred Stock [Member]
Summary of non-cash investing and financing activities:
Stock dividends	108	0
Series C Preferred Stock [Member]
Summary of non-cash investing and financing activities:
Stock dividends	0	575
Accretion of discount on Convertible Redeemable Preferred Stock	0	517
Series D Preferred Stock [Member]
Summary of non-cash investing and financing activities:
Stock dividends	748	0
Accretion of discount on Convertible Redeemable Preferred Stock	$ 3,549	$ 0