CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities:
Net loss	$ (6,341)	$ (8,598)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	2,098	2,392
Bad debt expense	280	14
Amortization of debt discount	0	53
Amortization of right of use asset	372	834
Stock-based compensation	535	89
Stock-based expense for services	390	0
Gain on extinguishment of lease liability	(227)	0
Gain on extinguishment of debt	(2,448)	0
Impairment charges - property and equipment	98	126
Impairment charges - intangible assets	207	0
Impairment charges - goodwill	0	541
Changes in operating assets and liabilities:
Accounts receivable	1,610	322
Inventory	(936)	689
Prepaid expenses and other current assets	(751)	240
Other assets	15	(32)
Accounts payable	225	15
Accrued expenses and other current liabilities	11	(184)
Deferred revenue	(355)	72
Lease liabilities	(739)	(895)
Other liabilities	0	(3)
Net cash used in operating activities	(5,956)	(4,325)
Cash flows from investing activities:
Purchases of property and equipment	(30)	(8)
Net cash used in investing activities	(30)	(8)
Cash flows from financing activities:
Proceeds from stock issuance, net of issuance costs	11,504	0
Proceeds from PPP Loan	0	2,417
Purchase of treasury stock	0	(16)
Net cash provided by financing activities	11,504	2,401
Increase (decrease) in cash and restricted cash	5,518	(1,932)
Cash and restricted cash at beginning of period	5,277	4,602
Cash and restricted cash at end of period	10,795	2,670
Reconciliation of cash and restricted cash
Cash	10,734	2,670
Restricted cash	61	0
Total cash and restricted cash	10,795	2,670
Cash paid during the period for interest	3	159
Non-cash investing and financing activities:
Issuance of preferred stock in exchange for accrued dividends	0	99
Accrued preferred stock dividends	1	12
Inducement to convert Series A-2 Preferred Stock to common	300	0
Common stock issued for conversion of preferred stock	$ 3	$ 0