Consolidated Statements of Cash Flows (Unaudited) (USD $)	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash flows from operating activities:
Net Income	$ 1,228,874	$ 2,704,414
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Stock-based compensation expense	175,746	216,506
Loss on sale of building	693,818
Gain on sale of other fixed assets	(3,288)
Depreciation and amortization	440,440	413,241
Deferred tax expense	161,372	108,370
Bad debt provision	(648)	(2,767)
(Increases)/decreases in operating assets:
Accounts receivable	(469,622)	640,243
Costs and estimated earnings in excess of billings on uncompleted contracts	156,812	(363,319)
Inventories, net	289,392	545,079
Other current assets	(60,113)	(456,930)
Billings in excess of costs and estimated earnings on uncompleted contracts	(1,601,005)	(439,540)
Accounts payable and accrued expenses	179,068	1,528,505
Deferred revenue	(918,031)	(10,041)
Net cash provided by operating activities	272,815	4,883,761
Cash flows from investing activities:
Restricted cash	200,000	(1,000,000)
Capital expenditures	(10,124,428)	(181,303)
Deposits	331,781	(360,000)
Net cash (used in) investing activities	(7,988,824)	(1,541,303)
Cash flows from financing activities:
Net proceeds from issuance of common stock		9,390,000
Net proceeds from stock options exercised	286,548	79,710
Proceeds from long-term debt	6,000,000	2,100,000
Payments of long-term debt	(616,878)	(2,542,828)
Net cash provided by financing activities	5,669,670	9,026,882
Net (decrease) increase in cash and cash equivalents	(2,046,339)	12,369,340
Cash and cash equivalents at beginning of period	18,136,527	6,249,090
Cash and cash equivalents at end of period	16,090,188	18,618,430
Supplemental disclosure of cash flow information:
Income taxes paid	454,725	505,344
Interest paid	148,202	149,212
Building [Member]
Cash flows from investing activities:
Proceeds from sale of property, plant and equipment	1,582,323
Other Fixed Assets [Member]
Cash flows from investing activities:
Proceeds from sale of property, plant and equipment	$ 21,500