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Costs and estimated earnings on uncompleted contracts
12 Months Ended
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