March 31, 2014

December 31, 2013

Costs incurred on uncompleted contracts

$

1,126,244

$

1,807,628

Estimated earnings

2,928,698

1,229,038

4,054,942

3,036,666

Billings to date

(2,517,721

)

(1,711,587

)

$

1,537,221

$

1,325,079

Included in accompanying balance sheets under the following captions:

Cost and estimated earnings in excess of billings on uncompleted contracts

$

1,934,385

$

1,577,969

Billings in excess of costs and estimated earnings on uncompleted contracts

$

(397,164

)

$

(252,890

)