Other Accrued Liabilities (Details) - USD ($) $ in Thousands	Feb. 28, 2019	Feb. 28, 2018
Other Liabilities Disclosure [Abstract]
Accrued interest	$ 1,196	$ 1,649
Accrued warranty	1,751	2,013
Commissions	3,370	2,801
Personnel expenses	6,282	6,493
Group medical insurance	2,024	1,905
Other Sundry Liabilities, Current	3,008	4,761
Total other accrued liabilities	$ 17,631	$ 19,622