Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities:
Net income	$ 790	$ 2,317
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	840	694
Gain on sale of assets	(106)	(32)
Allowance for doubtful accounts	39	(119)
Stock compensation	256	290
Deferred taxes	(97)	(63)
(Increase) decrease in
Accounts receivable - billed	(1,163)	(3,461)
Accounts receivable - unbilled	(246)	76
Inventories	254	(419)
Prepaid expenses and other assets	(44)	(149)
Refundable income taxes	33	96
Accounts payable - trade	(674)	462
Accrued expenses and other liabilities	(63)	179
Deferred revenue	85	622
Accrued income taxes payable	339	0
Accrued compensation	(409)	132
Deferred buy-back lease obligation	5,389	0
Customer deposits	495	1,051
Net cash provided by operating activities	5,718	1,676
Cash flows from investing activities:
Purchases of investment securities available-for-sale	(24)	(28)
Purchases of property and equipment	(1,737)	(2,569)
Payments to Acquire Equipment on Lease	(4,400)	0
Proceeds from sale of fixed assets	113	37
Net cash used in investing activities	(6,048)	(2,560)
Cash flows from financing activities:
Proceeds from long-term borrowings	350	183
Repayments of long-term borrowings	(479)	(435)
Dividends paid on common stock	(256)	(49)
Proceeds from options exercised	12	117
Net cash used in financing activities	(373)	(184)
Net decrease in cash and cash equivalents	(703)	(1,068)
Cash and cash equivalents
Beginning of period	3,390	3,523
End of period	$ 2,687	$ 2,455