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Note 3 - Uncompleted Contracts (Tables) | 12 Months Ended
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Dec. 31, 2012
Schedule of Cost and Estimated Earnings In Excess of Billings [Table Text Block] |
|  | 2012 |  |  | 2011 |
Costs incurred on uncompleted contracts |  | $ | 10,733,663 |  |  | $ | 11,253,624 |
Estimated earnings |  |  | 9,465,412 |  |  |  | 10,120,760 |
|  |  | 20,199,075 |  |  |  | 21,374,384 |
Billings to date |  |  | (17,944,876 | ) |  |  | (19,650,770 | )
|  | $ | 2,254,199 |  |  | $ | 1,723,614 |
|  | 2012 |  |  | 2011 |
Included in accompanying balance sheets |  |  |  |  |  |  |  |
Under the following captions: |  |  |  |  |  |  |  |
Costs and estimated earnings in excess of billings on uncompleted contracts |  | $ | 2,730,104 |  |  | $ | 3,410,824 |
Billings in excess of costs and estimated earnings on uncompleted contracts |  | $ | (475,905 | ) |  | $ | (1,687,210 | )

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- Definition Schedule of cost and estimated earnings in excess of billings on uncompleted contracts + References No definition available. + Details
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Period Type: | duration