| Costs in excess of billings: | | 2013 | | 2012 | | ||
| Earnings on billings to date | | $ | 2,298,030 | | $ | 2,059,919 | |
| Less: Billings | | | (1,917,400) | | | (1,584,265) | |
| Total costs in excess of billings | | $ | 380,630 | | $ | 475,654 | |
| Billings in excess of costs: | | 2013 | | 2012 | | ||
| Earnings on billings to date | | $ | - | | $ | 1,190,853 | |
| Less: Billings | | | - | | | (1,196,000) | |
| Total (billings in excess of costs) | | $ | - | | $ | (5,147) | |