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	24,094			24,094
Adjustment to pension, net of deferred tax	4,924				4,924
Dividends paid	(23,467)			(23,467)
Stock based compensation	1,243		1,243
Exercise of stock options and restricted stock	661		(1,278)			$ 1,939
Exercise of stock options and restricted stock, shares						110,652
Common stock repurchases	(1,235)					$ (1,235)
Common stock repurchases, shares						(77,996)
Ending balance at Feb. 28, 2021	300,549	$ 75,134	123,017	194,436	(20,282)	$ (71,756)
Ending balance common stock, shares at Feb. 28, 2021		30,053,443
Ending balance treasury stock, shares at Feb. 28, 2021						4,103,630
Net earnings	28,982			28,982
Adjustment to pension, net of deferred tax	1,695				1,695
Dividends paid	(25,420)			(25,420)
Stock based compensation	2,799		2,799
Exercise of stock options and restricted stock			(1,826)			$ 1,826
Exercise of stock options and restricted stock, shares						104,485
Common stock repurchases	$ (4,790)					$ (4,790)
Common stock repurchases, shares	(254,679)					(254,679)
Ending balance at Feb. 28, 2022	$ 303,815	$ 75,134	123,990	197,998	(18,587)	$ (74,720)
Ending balance common stock, shares at Feb. 28, 2022	30,053,443	30,053,443
Ending balance treasury stock, shares at Feb. 28, 2022						(4,253,824)
Net earnings	$ 47,300			47,300
Adjustment to pension, net of deferred tax	4,483				4,483
Dividends paid	(25,839)			(25,839)
Stock based compensation	2,791		2,791
Exercise of stock options and restricted stock			(894)			$ 894
Exercise of stock options and restricted stock, shares						51,071
Common stock repurchases	$ (1,118)					$ (1,118)
Common stock repurchases, shares	(64,082)					(64,082)
Ending balance at Feb. 28, 2023	$ 331,432	$ 75,134	$ 125,887	$ 219,459	$ (14,104)	$ (74,944)
Ending balance common stock, shares at Feb. 28, 2023	30,053,443	30,053,443
Ending balance treasury stock, shares at Feb. 28, 2023						4,266,835