- Costs Net of Billings By Balance Sheet Location (Details) - USD ($) $ in Thousands	Feb. 29, 2016	Feb. 28, 2015
Contractors [Abstract]
Cost and estimated earnings in excess of billings on uncompleted contracts	$ 32,287	$ 33,676
Billings in excess of costs and estimated earnings on uncompleted contracts	(9,237)	(4,674)
Total costs net of billings	$ 23,050	$ 29,002