Other Stock and Retirement Plans Other Stock and Retirement Plans (Details) - USD ($)	12 Months Ended
	Feb. 28, 2017	Feb. 29, 2016	Feb. 28, 2015
Deferred Profit Sharing [Member]
Pension and Other Postretirement Benefit Contributions	$ 0	$ 0	$ 0
Defined Benefit Plan, Expected Future Benefit Payments, Next Twelve Months	210,000
Defined Benefit Plan, Expected Future Benefit Payments, Year Two	228,000
Defined Benefit Plan, Expected Future Benefit Payments, Year Three	227,000
Defined Benefit Plan, Expected Future Benefit Payments, Year Four	266,000
Defined Benefit Plan, Expected Future Benefit Payments, Year Five	266,000
Defined Benefit Plan, Expected Future Benefit Payments, Five Fiscal Years Thereafter	6,415,000
Pension and Other Postretirement Defined Benefit Plans, Current Liabilities	210,000	193,000
Defined Benefit Plan, Benefit Obligation	7,612,000	7,379,000	8,072,000
Defined Benefit Plan, Interest Cost	142,000	129,000	208,000
Defined Benefit Plan, Benefits Paid	(178,000)	(159,000)
Defined Benefit Plan, Actuarial Gain (Loss)	420,000	(426,000)
Defined Benefit Plan, Foreign Currency Exchange Rate Gain (Loss)	$ (151,000)	(237,000)
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	1,226,000
Pension and Other Postretirement Benefit Contributions	$ 0	0	0
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 408,000	623,000	629,000
Deferred Compensation Arrangement with Individual, Cash Awards Granted, Percentage of Deferred Salary	25.00%
Deferred Compensation Arrangement with Individual, Maximum Employer Contribution	$ 20,000
Deferred Compensation Plan Assets	4,094,000	$ 3,917,000
Deferred Compensation Liability, Current and Noncurrent	$ 250,000
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	1.70%	2.00%
Defined Benefit Plan, Contributions by Employer	$ 0	$ 0	0
Defined Benefit Plan, Assets for Plan Benefits	0
Pension and Other Postretirement Defined Benefit Plans, Liabilities	7,612,000	7,379,000
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent	7,402,000	7,186,000
Pension Expense	$ 142,000	$ 129,000	$ 208,000