Quarterly report pursuant to Section 13 or 15(d)

Costs and Estimated Earnings on Contracts (Details)

v3.7.0.1
Costs and Estimated Earnings on Contracts (Details) - USD ($)
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Summary of revenue on contracts    
Revenues Earned $ 3,172,088 $ 4,000,808
Cost of Revenues 2,349,466 2,686,036
Gross Profit (Loss) 822,622 1,314,772
Revenue Completed contracts [Member]    
Summary of revenue on contracts    
Revenues Earned 1,475,084 2,227,953
Cost of Revenues 1,083,890 1,548,072
Gross Profit (Loss) 391,194 679,880
Revenue Uncompleted contracts [Member]    
Summary of revenue on contracts    
Revenues Earned 1,697,004 1,772,856
Cost of Revenues 1,265,576 1,137,964
Gross Profit (Loss) $ 431,428 $ 634,892