CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Cash Flows - Operating Activities:
Net loss	$ (27,259)	$ (30,937)
Adjustments to reconcile net loss to net cash used by operating activities
Amortization of intangibles	704	713
Depreciation	532	299
Bad debt expense	442	302
Impairment of intangible assets	0	7,185
Stock-based compensation	0	22
Shares issued for services	0	2,546
Shares issued for inducement	0	45
Gain/loss on extinguishment of debt	(204)	565
Income tax expense	28	0
Change in fair value of derivative liabilities	2,622	3,193
Loss on issuance of debt	3,572	0
Amortization of debt issuance costs and original issue discount	3,226	484
Accrued interest	1,506	1,098
Interest payable, related parties	212	401
Changes in operating assets and liabilities
Accounts receivable - trade	(395)	(2,582)
Inventory	1,916	(553)
Prepaid expenses	(118)	(54)
Other assets	(111)	13
Operating leases	0	(6)
Accounts payable	3,181	3,015
Accrued expenses	1,818	1,169
Accrued employee compensation	1,837	934
Contract liabilities	82	(570)
Net Cash Used by Operating Activities	(6,409)	(12,718)
Cash Flows - Investing Activities
Acquisition of UltraMIST, net of $4,000,000 note payable to seller	0	(20,000)
Purchases of property and equipment	(529)	(53)
Net Cash Flows Used by Investing Activities	(529)	(20,053)
Cash Flows - Financing Activities
Proceeds from sale of convertible preferred stock	0	2,450
Proceeds from convertible promissory notes	1,928	1,100
Proceeds from SBA loan	1,033	614
Proceeds from PIPE offering, net of offering costs	0	21,456
Proceeds from senior secured promissory notes	940	13,347
Proceeds from stock option exercises	0	48
Proceeds from factoring	1,737	0
Proceeds from warrant exercises	0	10
Advances from related parties	175	23
Repayments of debt principal on convertible promissory notes, related parties, convertible promissory notes and SBA loans	(493)	(5,458)
Payments of principal on finance leases	(199)	(143)
Net Cash Flows Provided by Financing Activities	5,121	33,447
Effect of Exchange Rates on Cash	(1)	0
Net Change in Cash During Period	(1,818)	676
Cash at Beginning of Period	2,437	1,761
Cash at End of Period	619	2,437
Supplemental Information:
Cash paid for interest	2,580	436
Non-cash Investing and Financing Activities:
Reclassification of warrant liabilities to equity	2,030	6,293
Embedded conversion feature on convertible debt	4,138	561
Warrant issuance in conjunction with advances on future cash receipts	1,227	0
Warrant issuance in conjunction with convertible notes	1,055	0
Acquisition of UltraMIST partially financed with convertible promissory note	0	4,000
Conversion of notes payable, related parties	0	2,291
Series C and Series D preferred stock converted to common stock	0	2,450
Exchange line of credit and notes payable, related parties, for convertible promissory notes, related parties	0	1,596
Conversion of short-term notes payable to equity	0	565
Conversion of advance from related parties	$ 0	$ 18