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Costs and estimated earnings on uncompleted contracts | 12 Months Ended
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Jan. 31, 2012
Costs and estimated earnings on uncompleted contracts [Abstract] |
Costs and estimated earnings on uncompleted contracts | Note 4 - Costs and estimated earnings on uncompleted contracts
| 2011 |  | 2010 |
Costs incurred on uncompleted contracts | $61,938 | $40,039
Estimated earnings | 11,550 |  | 6,668 |
Earned revenue | 73,488 |  | 46,707 |
Less billings to date | 73,091 |  | 46,249 |
Total | $397 | $458
Balance sheet classification |  |
Costs and estimated earnings in excess of billings on uncompleted contracts | $2,375 | $2,055
Billings in excess of costs and estimated earnings on uncompleted contracts | (1,978 | ) | (1,597 | )
Total | $397 | $458

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