CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities:
Net loss	$ (13,572)	$ (5,679)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	1,226	1,429
Bad debt expense	125	449
Stock-based compensation	83	33
Stock-based expense for services	0	390
Forfeiture of unvested stock options	(84)	0
Gain on extinguishment of liability	0	(227)
Casualty loss on inventory	533	0
Loss on foreign currency remeasurement	0	3
Impairment charges - property and equipment	0	48
Impairment charges - right of use asset	179	0
Impairment charges - goodwill	7,367	0
Changes in operating assets and liabilities:
Accounts receivable	233	1,764
Inventory	210	(1,205)
Prepaid expenses and other current assets	(69)	(702)
Right of use asset	235	250
Other assets	87	7
Accounts payable	66	205
Accrued expenses and other current liabilities	17	408
Deferred revenue	(265)	(429)
Lease liabilities	(282)	(414)
Net cash used in operating activities	(3,911)	(3,670)
Cash flows from investing activities:
Purchases of property and equipment	(11)	(17)
Proceeds from sale of equipment	29	0
Net cash provided by (used in) investing activities	18	(17)
Cash flows from financing activities:
Proceeds from stock issuance, net of issuance costs	0	11,504
Net cash provided by financing activities	0	11,504
(Decrease) increase in cash and restricted cash	(3,893)	7,817
Cash and restricted cash at beginning of period	9,000	5,277
Cash and restricted cash at end of period	5,107	13,094
Reconciliation of cash and restricted cash
Cash	5,107	13,033
Restricted cash	0	61
Total cash and restricted cash	5,107	13,094
Cash paid during the period for interest	6	2
Non-cash investing and financing activities:
Accrued preferred stock dividends	0	1
Inducement to convert Series A-2 Preferred Stock to common	0	300
Common stock issued for conversion of Preferred Stock	$ 0	$ 3