STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities:
Net income (loss)	$ (3,608,576)	$ 5,015,993	$ (25,209,275)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	661,921	854,063	763,736
Amortization of debt issue costs	61,320
Deferred rent	8,235	46,017	17,098
Stock-based compensation expense	524,269	524,274	467,765
Common stock issued as employee compensation	163,451	59,423	57,993
Loss on disposal of fixed asset			1,042
Deferred portion of provision for income taxes	(2,077,299)	2,659,000	(3,790,000)
Tax benefit from stock option plans		(33,000)	(86,000)
Bad debt expense	460,514	50,000
Changes in operating assets and liabilities:
(Increase) in accounts receivable	(1,309,290)	(1,249,023)	(2,074,560)
(Increase) decrease in costs and estimated earnings in excess of billings on uncompleted contracts	3,043,861	(23,568,248)	33,542,997
Increase in prepaid expenses and other assets	(1,013,008)	(237,199)	(219,007)
(Increase) decrease in refundable income taxes	(77,000)	8,133,433	(8,138,322)
Increase (decrease) in accounts payable and accrued expenses	(4,023,547)	9,446,948	1,715,580
Increase in accrued losses on uncompleted contracts	827,448	153,541	396,182
(Decrease) increase in income taxes payable	(183,000)	220,822	(730,469)
Decrease in billings in excess of costs and estimated earnings on uncompleted contracts	(60,101)	(18,212)	(82,520)
Net cash (used in) provided by operating activities	(6,600,802)	2,057,832	(3,367,760)
Cash flows from investing activities:
Purchase of plant and equipment	(136,320)	(209,718)	(602,924)
Net cash used in investing activities	(136,320)	(209,718)	(602,924)
Cash flows from financing activities:
Proceeds from exercise of stock options		80,000	447,751
Payment on line of credit	(30,400,000)	(9,650,000)	(4,700,000)
Proceeds from line of credit	29,138,685	8,200,000	8,500,000
Payment on long-term debt	(1,710,145)	(1,013,998)	(1,024,263)
Proceeds from long-term debt	10,000,000
Debt issue costs	(253,855)
Tax benefit from stock options		33,000	86,000
Net cash provided by (used in) financing activities	6,774,685	(2,350,998)	3,309,488
Net increase (decrease) in cash	37,563	(502,884)	(661,196)
Cash at beginning of year	1,002,023	1,504,907	2,166,103
Cash at end of year	1,039,586	1,002,023	1,504,907
Supplemental schedule of noncash investing and financing activities:
Equipment acquired under capital lease	465,475	247,881	67,283
Supplemental disclosures of cash flow information:
Cash paid during the year for interest	1,182,791	1,000,403	915,695
Cash paid for income taxes	$ 302,025	$ 351,275	$ 855,000