Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Reconciliation of net income to cash provided (absorbed) by operating activities
Net income (loss)	$ (186,065)	$ 358,065
Adjustments to reconcile net income (loss) to net cash provided (absorbed) by operating activities:
Depreciation and amortization	474,744	478,323
Gain on disposal of fixed assets	(38,431)	(29,247)
Realized loss on the sale of securities available-for-sale	0	68,631
Deferred taxes	(155,000)	(140,000)
(Increase) decrease in:
Accounts receivable - billed	2,450,365	(2,622,161)
Accounts receivable - unbilled	(204,854)	90,198
Inventories	261,984	218,934
Prepaid expenses and other assets	(66,895)	48,717
Prepaid income taxes	(126,100)	173,155
Increase (decrease) in:
Accounts payable - trade	(76,586)	90,746
Accrued expenses and other	(53,377)	(31,210)
Accrued income taxes payable	(302,263)	183,332
Customer deposits	(246,259)	613,693
Net cash provided (absorbed) by operating activities	1,731,263	(498,824)
Cash flows from investing activities:
Purchases of investment securities available-for-sale	(45,503)	(2,009,110)
Sale of securities available-for-sale	0	1,000,000
Purchases of property and equipment	(398,684)	(548,337)
Proceeds from sale of fixed assets	40,116	29,405
Net cash absorbed by investing activities	(404,071)	(1,528,042)
Cash flows from financing activities:
Proceeds from long-term borrowings	55,159	2,139,339
Repayments of long-term borrowings	(280,980)	(2,292,865)
Proceeds from options exercised	0	16,731
Net cash absorbed by financing activities	(225,821)	(136,795)
Net increase (decrease) in cash and cash equivalents	1,101,371	(2,163,661)
Cash and cash equivalents
Beginning of period	3,136,063	4,367,474
End of period	$ 4,237,434	$ 2,203,813