- Costs Net of Billings By Balance Sheet Location (Details) (USD $)	Feb. 28, 2014	Feb. 28, 2013
Contractors [Abstract]
Cost and estimated earnings in excess of billings on uncompleted contracts	$ 27,222,000	$ 12,878,000
Billings in excess of costs and estimated earnings on uncompleted contracts	(3,018,379)	(1,769,656)
Total costs net of billings	$ 24,204,000	$ 11,108,000