Other Accrued Liabilities (Details) - USD ($)	Feb. 28, 2017	Feb. 29, 2016
Other Liabilities Disclosure [Abstract]
Accrued interest	$ 2,036,000	$ 2,356,000
Tenant improvements	278,000	507,000
Accrued warranty	2,098,000	2,915,000
Commissions	2,483,000	2,685,000
Personnel expenses	8,251,000	8,456,000
Group medical insurance	1,969,000	1,699,000
Other Sundry Liabilities, Current	6,927,000	7,519,000
Total other accrued liabilities	$ 24,042,000	$ 26,137,000