Costs and estimated earnings on uncompleted contracts Costs and estimated earnings on uncompleted contracts (Tables)

12 Months Ended

Jan. 31, 2018

Costs and estimated earnings on uncompleted contracts [Abstract]

Costs and estimated earnings on uncompleted contracts [Table Text Block]

(In thousands)	2017	2016
Costs incurred on uncompleted contracts	$11,955	$17,015
Estimated earnings	6,336	16,137
Earned revenue	18,291	33,152
Less billings to date	18,756	32,161
Costs in excess of billings, net	($465)	$991
Balance sheet classification
Costs and estimated earnings in excess of billings on uncompleted contracts	$1,502	$2,091
Billings in excess of costs and estimated earnings on uncompleted contracts	(1,967)	(1,100)
Costs in excess of billings, net	($465)	$991