Other Accrued Liabilities (Details) - USD ($) $ in Thousands	Feb. 28, 2018	Feb. 28, 2017
Other Liabilities Disclosure [Abstract]
Accrued interest	$ 1,649	$ 2,036
Tenant improvements	163	278
Accrued warranty	2,013	2,098
Commissions	2,801	2,483
Personnel expenses	6,493	8,251
Group medical insurance	1,905	1,969
Other Sundry Liabilities, Current	4,598	6,927
Total other accrued liabilities	$ 19,622	$ 24,042