Liquidity and Going Concern Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	May 31, 2018	May 31, 2017	Feb. 28, 2018
Other Commitments [Line Items]
Cash and cash equivalents	$ 10,456		$ 4,107
Payments to Acquire Property, Plant, and Equipment	20	$ 397
Current maturities of long-term debt	34,724		16,037
Two Thousand Fourteen Credit Agreement
Other Commitments [Line Items]
Total Credit Agreement debt	28,000		78,451
Two Thousand Fourteen Credit Agreement | Revolver
Other Commitments [Line Items]
Total Credit Agreement debt	0		9,000
Two Thousand Fourteen Credit Agreement | Term Loan
Other Commitments [Line Items]
Total Credit Agreement debt	$ 28,000		$ 69,451