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. 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
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 $95 and $144 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)
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
Ending balance treasury stock, shares at May. 31, 2020						(4,098,607)
Beginning balance at Feb. 28, 2021	$ 300,549	$ 75,134	123,017	194,436	(20,282)	$ (71,756)
Beginning balance common stock, shares at Feb. 28, 2021	30,053,443	30,053,443
Beginning balance, treasury stock, shares at Feb. 28, 2021						(4,103,630)
Net earnings	$ 7,304			7,304
Adjustment to pension, net of deferred tax of $95 and $144 respectively	299				299
Dividends paid ($0.225 and $0.225 per share respectively)	(5,866)			(5,866)
Stock based compensation	$ 1,166		1,166
Exercise of stock options and restricted stock			(1,437)			$ 1,437
Exercise of stock options and restricted stock, shares						82,164
Common stock repurchases, shares	0
Ending balance at May. 31, 2021	$ 303,452	$ 75,134	$ 122,746	$ 195,874	$ (19,983)	$ (70,319)
Ending balance common stock, shares at May. 31, 2021	30,053,443	30,053,443
Ending balance treasury stock, shares at May. 31, 2021						(4,021,466)