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Costs and estimated earnings on uncompleted contracts | 12 Months Ended
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Jan. 31, 2017
Costs and estimated earnings on uncompleted contracts [Abstract] |
Costs and estimated earnings on uncompleted contracts | Note 6 - Costs and estimated earnings on uncompleted contracts
| 2016 | 2015
Costs incurred on uncompleted contracts | $82,280 | $78,843
Estimated earnings | 51,546 | 46,359
Earned revenue | 133,826 | 125,202
Less billings to date | 132,835 | 123,915
Costs in excess of billings, net | $991 | $1,287
Balance sheet classification |  |
Costs and estimated earnings in excess of billings on uncompleted contracts | $2,091 | $2,463
Billings in excess of costs and estimated earnings on uncompleted contracts | (1,100) | (1,176)
Costs in excess of billings, net | $991 | $1,287

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