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CONDENSED STATEMENTS OF CASH FLOWS (Unaudited) (USD $)
 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Cash flows from operating activities:    
Net income $ 5,366,650 $ 7,410,775
Adjustments to reconcile net income to net cash used in operating activities:    
Depreciation and amortization 518,048 458,606
Deferred rent 36,414 58,750
Recovery of bad debt 0 (75,000)
Stock compensation 379,808 382,657
Deferred income taxes (17,000) (54,000)
Provision for (tax benefit) from stock option plans 26,000 (162,000)
Changes in operating assets and liabilities:    
Increase in accounts receivable (5,030,616) (4,498,170)
Increase in costs and estimated earnings in excess of billings on uncompleted contracts (2,856,305) (17,198,319)
(Increase) decrease in prepaid expenses and other assets (219,843) 294,145
Decrease in accounts payable and accrued expenses (6,537,071) (3,460,951)
(Increase)Decrease in billings in excess of costs and estimated earnings on uncompleted contracts (187,344) 0
Increase (decrease) in income taxes payable 103,800 (916,708)
Net cash used in operating activities (8,417,459) (17,760,215)
Cash used in investing activities - purchase of plant and equipment (600,810) (709,111)
Cash flows from financing activities:    
Payment of long-term debt (824,851) (1,046,976)
Proceeds from long-term debt 0 4,500,000
Proceeds from line of credit 10,000,000 4,500,000
Payments on line of credit (2,000,000) (4,000,000)
Proceeds from exercise of stock options 0 1,224,515
Proceeds from sale of common stock 0 13,323,694
(Provision for) tax benefit from stock option plans (26,000) 162,000
Net cash provided by financing activities 7,149,149 18,663,233
Net increase (decrease) in cash (1,869,120) 193,907
Cash at beginning of period 2,709,803 878,200
Cash at end of period 840,683 1,072,107
Non cash investing and financing activities:    
Equipment acquired under capital lease 0 76,592
Common stock issued for bonuses 152,074 228,290
Cash paid during the period for:    
Interest 638,767 907,709
Income taxes $ 2,250,000 $ 4,394,778