Unaudited Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]
Beginning balance at Feb. 28, 2019	$ 289,127	$ 75,134	$ 123,065	$ 179,003	$ (16,704)	$ (71,371)
Beginning balance common stock, shares at Feb. 28, 2019		30,053,443
Beginning balance, treasury stock, shares at Feb. 28, 2019						(4,097,099)
Net earnings	9,632			9,632
Adjustment to pension, net of deferred tax of $144 and $78 respectively	234				234
Dividends paid ($0.225 and $0.225 per share respectively)	(5,875)			(5,875)
Stock based compensation	358		358
Exercise of stock options and restricted stock			(1,312)			$ 1,312
Exercise of stock options and restricted stock, shares						83,095
Common stock repurchases	(1,212)					$ (1,212)
Common stock repurchases, shares						(62,038)
Ending balance at May. 31, 2019	292,264	$ 75,134	122,111	182,760	(16,470)	$ (71,271)
Ending balance common stock, shares at May. 31, 2019		30,053,443
Ending balance treasury stock, shares at May. 31, 2019						(4,076,042)
Beginning balance at Feb. 29, 2020	$ 294,329	$ 75,134	123,052	193,809	(25,206)	$ (72,460)
Beginning balance common stock, shares at Feb. 29, 2020	30,053,443	30,053,443
Beginning balance, treasury stock, shares at Feb. 29, 2020						(4,136,286)
Net earnings	$ 4,185			4,185
Adjustment to pension, net of deferred tax of $144 and $78 respectively	433				433
Dividends paid ($0.225 and $0.225 per share respectively)	(5,864)			(5,864)
Stock based compensation	338		338
Exercise of stock options and restricted stock			(1,124)			$ 1,124
Exercise of stock options and restricted stock, shares						64,151
Common stock repurchases	$ (423)					$ (423)
Common stock repurchases, shares	(26,472)					(26,472)
Ending balance at May. 31, 2020	$ 292,998	$ 75,134	$ 122,266	$ 192,130	$ (24,773)	$ (71,759)
Ending balance common stock, shares at May. 31, 2020	30,053,443	30,053,443
Ending balance treasury stock, shares at May. 31, 2020						(4,098,607)