Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 769	$ (2,404)	$ 769	$ (2,404)
Adjustments to reconcile net cash used in operating activities:
Depreciation and amortization expense	1,605	1,519
Deferred income taxes	(5)	(7)
Change in fair value of interest rate swap agreements	0	2
Share-based compensation	178	192
Allowance for doubtful accounts	14	(23)
Common stock issued under defined contribution 401(k) plan	302	282
Loss on disposal of assets	0	3
Changes in operating assets and liabilities:
Accounts receivable	(8,841)	(5,073)
AMP credit receivable	(3,162)	0
Employee retention credit receivable	0	497
Contract assets	46	(2,038)
Inventories	(4,281)	(5,690)
Prepaid expenses and other current assets	130	179
Accounts payable	(784)	10,538
Accrued liabilities	847	(254)
Customer deposits	(12,799)	(3,683)
Other non-current assets and liabilities	(3)	(45)
Net cash used in operating activities	(25,984)	(6,005)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(1,065)	(492)
Net cash used in investing activities	(1,065)	(492)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from line of credit, net	16,945	7,207
Proceeds from long-term debt	0	125
Payments on long-term debt	(634)	(8)
Principal payments on finance leases	(265)	(495)
Shares withheld for taxes in connection with issuance of restricted stock	0	(411)
Net cash provided by financing activities	16,046	6,418
NET DECREASE IN CASH	(11,003)	(79)
CASH beginning of the period	12,732	852	852
CASH end of the period	$ 1,729	$ 773	$ 12,732	$ 852