Consolidated Statements of Cash Flows (Unaudited) (USD $)	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Cash flows from operating activities
Net Income	$ 2,704,414	$ 156,434
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation expense	216,506	127,258
Depreciation and amortization	413,241	445,293
Deferred tax expense	108,370	22,830
Bad debt provision	(2,767)	806
Changes in operating assets and liabilities:
Accounts receivable	640,243	(583,438)
Costs and estimated earnings in excess of billings on uncompleted contracts	(363,319)	1,938,134
Inventories, net	545,079	(333,194)
Other current assets	(456,930)	(43,842)
Customer deposits
Increase (decrease) in operating liabilities:
Billings in excess of costs and estimated earnings on uncompleted contracts	(439,540)
Accounts payable and accrued expenses	1,528,505	144,458
Deferred revenue	(10,041)	(47,505)
Net cash provided by operating activities	4,883,761	1,827,234
Cash flows from investing activities:
Restricted cash	(1,000,000)
Capital expenditures	(181,303)	(313,522)
Deposits	(360,000)
Net cash (used in) investing activities	(1,541,303)	(313,522)
Cash flows from financing activities:
Net proceeds from issuance of common stock (Note 9)	9,390,000
Net proceeds from stock options exercised	79,710	46,900
Proceeds from long-term debt	2,100,000
Payments of long-term debt	(2,542,828)	(273,925)
Net cash provided by (used in) financing activities	9,026,882	(227,025)
Net increase in cash and cash equivalents	12,369,340	1,286,687
Cash and cash equivalents at beginning of period	6,249,090	3,119,731
Cash and cash equivalents at end of period	18,618,430	4,406,418
Supplemental disclosure of cash flow information:
Income taxes paid	505,344	40,048
Interest paid	$ 149,212	$ 171,923