CONDENSED BALANCE SHEETS (Unaudited) - USD ($)	Mar. 31, 2017	Dec. 31, 2016
Current Assets:
Cash	$ 430,956	$ 1,039,586
Accounts receivable, net of allowance for doubtful accounts of $535,514 as of March 31, 2017 and December 31, 2016	8,176,378	8,514,613
Costs and estimated earnings in excess of billings on uncompleted contracts	101,929,550	99,578,526
Prepaid expenses and other current assets	2,732,276	2,155,481
Total current assets	113,269,160	111,288,206
Property and equipment, net	2,175,211	2,298,610
Deferred income taxes, net	3,232,472	3,952,598
Other assets	236,437	252,481
Total Assets	118,913,280	117,791,895
Current Liabilities:
Accounts payable	11,750,482	14,027,457
Accrued expenses	1,050,663	1,386,147
Billings in excess of costs and estimated earnings on uncompleted contracts	321,439	115,337
Current portion of long-term debt	1,585,373	1,341,924
Contract loss	904,665	1,377,171
Line of credit	24,938,685	22,438,685
Income tax payable	6,000	6,000
Total current liabilities	40,557,307	40,692,721
Long-term debt, net of current portion	8,452,899	8,860,724
Other liabilities	619,874	632,744
Total Liabilities	49,630,080	50,186,189
Shareholders' Equity:
Common stock - $.001 par value; authorized 50,000,000 shares, 8,817,120 and 8,739,836 shares, respectively, issued and outstanding	8,817	8,738
Additional paid-in capital	53,247,864	52,824,950
Retained earnings	16,030,319	14,781,018
Accumulated other comprehensive loss	(3,800)	(9,000)
Total Shareholders' Equity	69,283,200	67,605,706
Total Liabilities and Shareholders' Equity	$ 118,913,280	$ 117,791,895

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.