CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Cash flows from operating activities:
Net loss	$ (2,951)	$ (3,434)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Goodwill and intangible asset impairment charge	0	0
Depreciation	48	72
Amortization of intangible assets	161	260
Amortization of capitalized software development costs	84	83
Amortization of deferred financing costs	7	3
Amortization of debt discount	303	129
Loss on debt settled in shares	106	0
Stock-based compensation expense	285	408
Credit loss expense	32	0
Change in fair value of derivative instruments, net	(69)	581
Deferred income taxes	2	55
Changes in assets and liabilities:
Contract receivables, net	(486)	846
Prepaid expenses and other assets	876	943
Accounts payable, accrued compensation and accrued expenses	1,252	1,028
Billings in excess of revenue earned	(61)	150
Accrued warranty	(94)	15
Other liabilities	(336)	(56)
Net cash (used in) provided by operating activities	(841)	1,083
Cash flows from investing activities:
Capital expenditures	0	(81)
Capitalized software development costs	(77)	(106)
Net cash used in investing activities	(77)	(187)
Cash flows from financing activities:
Repayment of line of credit	0	(1,817)
Repayment of insurance premium financing	(243)	(282)
Proceeds from issuance of long-term debt and warrants	0	5,750
Payments of debt issuance and original discount on issuance of long-term debt and warrants	0	(968)
Principal repayment of convertible note	(319)	0
Tax paid for shares withheld	(58)	(86)
Net cash (used in) provided by financing activities	(620)	2,597
Effect of exchange rate changes on cash	5	(12)
Net (decrease) increase in cash, cash equivalents and restricted cash	(1,533)	3,481
Cash, cash equivalents and restricted cash at beginning of the period	4,376	3,550	$ 3,550
Cash, cash equivalents and restricted cash at the end of the period	2,843	7,031	4,376
Cash and cash equivalents	1,265	5,448	2,789
Restricted cash, current	500	0	1,052
Restricted cash included in other long-term assets	1,078	1,583	535
Total cash, cash equivalents and restricted cash	2,843	7,031	$ 4,376
Non-cash financing activities
Repayment of convertible note in shares	745	0
Discount on issuance of convertible note	$ 0	$ 750