Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 1,510	$ 769
Adjustments to reconcile net cash provided by (used in) operating activities:
Depreciation and amortization expense	1,596	1,605	$ 1,605
Deferred income taxes	(8)	(5)
Stock-based compensation	225	178
Allowance for doubtful accounts	(2)	14
Common stock issued under defined contribution 401(k) plan	287	302
Changes in operating assets and liabilities:
Accounts receivable	4,632	(8,841)
AMP credit receivable	5,319	(3,162)
Contract assets	800	46
Inventories	19	(4,281)
Prepaid expenses and other current assets	635	130
Accounts payable	(4,005)	(784)
Accrued liabilities	(71)	847
Customer deposits	(5,097)	(12,799)
Other non-current assets and liabilities	17	(3)
Net cash provided by (used in) operating activities	5,857	(25,984)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(1,744)	(1,065)
Net cash used in investing activities	(1,744)	(1,065)
CASH FLOWS FROM FINANCING ACTIVITIES:
(Payments on) proceeds from line of credit, net	(4,657)	16,945
Proceeds from long-term debt	1,244	0
Payments on long-term debt	(325)	(634)
Principal payments on finance leases	(401)	(265)
Net cash (used in) provided by financing activities	(4,139)	16,046
NET DECREASE IN CASH	(26)	(11,003)
CASH beginning of the period	1,099	12,732	12,732
CASH end of the period	$ 1,073	$ 1,729	$ 1,099