CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities:
Net income (loss)	$ 791	$ 3,852
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	1,400	1,318
(Gain) loss on sale of property and equipment	(65)	(88)
Unrealized (gain) loss on investment securities available for sale	0	(11)
Allowance for doubtful accounts	45	15
Stock compensation	253	172
Deferred taxes	0	(4)
(Increase) decrease in
Accounts receivable - billed	(2,700)	(2,043)
Accounts receivable - unbilled	(121)	106
Inventories	(686)	(549)
Prepaid expenses and other assets	61	73
Refundable income taxes	177	0
Increase (decrease) in
Accounts payable - trade	1,661	1,078
Accrued expenses and other liabilities	364	(298)
Deferred revenue	(55)	1,666
Accrued compensation	(265)	178
Accrued income taxes	(1,912)	575
Deferred buy-back lease obligation	(1,617)	(602)
Customer deposits	(16)	264
Net cash provided by (used in) operating activities	(2,685)	5,702
Cash flows from investing activities:
Purchases of investment securities available-for-sale	0	(13)
Purchases of property and equipment	(1,962)	(926)
Deferred buy-back asset	988	0
Proceeds from the sale of property and equipment	65	88
Net cash provided by (used in) investing activities	(909)	(851)
Cash flows from financing activities:
Proceeds from long-term borrowings	2,805	0
Repayments of long-term borrowings	(278)	(421)
Net cash provided by (used in) financing activities	2,527	(421)
Net increase (decrease) in cash	(1,067)	4,430
Cash
Beginning of period	13,492	8,764
End of period	12,425	13,194
Supplemental Cash Flow Information:
Cash payments for interest	118	98
Cash payments for income taxes	$ 2,179	$ 713