CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash Flows From Operating Activities:
Net Income (loss)	$ (119)	$ 2,867
Adjustments To Reconcile Net Income (loss) To Net Cash Provided By (used In) Operating Activities:
Depreciation And Amortization	703	646
(gain) Loss On Sale Of Property And Equipment	(39)	(46)
Unrealized (gain) Loss On Investment Securities Available For Sale	0	8
Allowance For Doubtful Accounts	30	0
Stock Compensation	126	41
Deferred Taxes	5	(4)
(increase) Decrease In
Accounts Receivable - Billed	(2,064)	(1,124)
Accounts Receivable - Unbilled	(24)	(59)
Inventories	(480)	(153)
Prepaid Expenses And Other Assets	90	104
Increase (decrease) In
Accounts Payable - Trade	1,454	701
Accrued Expenses And Other Liabilities	(365)	(211)
Deferred Revenue	(11)	521
Accrued Compensation	(129)	69
Accrued Income Taxes	(43)	959
Deferred Buy-back Lease Obligation	(314)	(301)
Customer Deposits	(13)	284
Net Cash Provided By (used In) Operating Activities	(1,193)	4,302
Cash Flows From Investing Activities:
Purchases Of Investment Securities Available-for-sale	0	(7)
Purchases Of Property And Equipment	(196)	(376)
Proceeds From The Sale Of Property And Equipment	39	46
Net Cash Provided By (used In) Investing Activities	(157)	(337)
Cash Flows From Financing Activities:
Proceeds From Long-term Borrowings	2,805	0
Repayments Of Long-term Borrowings	(129)	(195)
Net Cash Provided By (used In) Financing Activities	2,676	(195)
Net Increase (decrease) In Cash	1,326	3,770
Cash
Beginning Of Period	13,492	8,764
End Of Period	14,818	12,534
Supplemental Cash Flow Information:
Cash Payments For Interest	48	42
Cash Payments For Income Taxes	$ 0	$ 0