Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Reconciliation of net income (loss) to cash provided (absorbed) by operating activities
Net income (loss)	$ 872,544	$ (186,065)
Adjustments to reconcile net income (loss) to net cash provided (absorbed) by operating activities:
Depreciation and amortization	499,554	474,744
Gain on disposal of fixed assets	(15,693)	(38,431)
Deferred taxes	(243,000)	(155,000)
(Increase) decrease in:
Accounts receivable - billed	(6,165,694)	2,450,365
Accounts receivable - unbilled	139,017	(204,854)
Inventories	(441,789)	261,984
Prepaid expenses and other assets	(123,949)	(66,895)
Prepaid income taxes	655,727	(126,100)
Increase (decrease) in:
Accounts payable - trade	1,656,645	(76,586)
Accrued expenses and other	619,400	(53,377)
Accrued compensation	255,458	0
Accrued income taxes payable	0	(302,263)
Customer deposits	736,128	(246,259)
Net cash provided (absorbed) by operating activities	(1,555,652)	1,731,263
Cash flows from investing activities:
Purchases of investment securities available-for-sale	(27,519)	(45,503)
Purchases of property and equipment	(864,814)	(398,684)
Proceeds from sale of fixed assets	23,731	40,116
Net cash absorbed by investing activities	(868,602)	(404,071)
Cash flows from financing activities:
Proceeds from long-term borrowings	97,005	55,159
Repayments of long-term borrowings	(275,114)	(280,980)
Proceeds from options exercised	21,101	0
Net cash absorbed by financing activities	(157,008)	(225,821)
Net increase (decrease) in cash and cash equivalents	(2,581,262)	1,101,371
Cash and cash equivalents
Beginning of period	3,572,405	3,136,063
End of period	$ 991,143	$ 4,237,434