Condensed 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, 2022	$ 303,815	$ 75,134	$ 123,990	$ 197,998	$ (18,587)	$ (74,720)
Beginning balance common stock, shares at Feb. 28, 2022		30,053,443
Begining balance, treasury stock , shares at Feb. 28, 2022						(4,253,824)
Net earnings	35,107			35,107
Adjustment to pension, net of deferred tax	1,501				1,501
Dividends paid	(19,380)			(19,380)
Stock based compensation	1,497		1,497
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)
Ending balance at Nov. 30, 2022	321,422	$ 75,134	124,593	213,725	(17,086)	$ (74,944)
Ending balance common stock, shares at Nov. 30, 2022		30,053,443
Ending balance, treasury stock , shares at Nov. 30, 2022						(4,266,835)
Beginning balance at Aug. 31, 2022	315,316	$ 75,134	124,031	208,898	(17,803)	$ (74,944)
Beginning balance common stock, shares at Aug. 31, 2022		30,053,443
Begining balance, treasury stock , shares at Aug. 31, 2022						(4,266,835)
Net earnings	11,286			11,286
Adjustment to pension, net of deferred tax	717				717
Dividends paid	(6,459)			(6,459)
Stock based compensation	562		562
Ending balance at Nov. 30, 2022	321,422	$ 75,134	124,593	213,725	(17,086)	$ (74,944)
Ending balance common stock, shares at Nov. 30, 2022		30,053,443
Ending balance, treasury stock , shares at Nov. 30, 2022						(4,266,835)
Beginning balance at Feb. 28, 2023	$ 331,432	$ 75,134	125,887	219,459	(14,104)	$ (74,944)
Beginning balance common stock, shares at Feb. 28, 2023	30,053,443	30,053,443
Begining balance, treasury stock , shares at Feb. 28, 2023						(4,266,835)
Net earnings	$ 32,451			32,451
Adjustment to pension, net of deferred tax	1,080				1,080
Dividends paid	(19,391)			(19,391)
Stock based compensation	$ 2,055		2,055
Exercise of stock options and restricted stock			(807)			$ 807
Exercise of stock options and restricted stock, shares						45,959
Common stock repurchases, shares	0
Ending balance at Nov. 30, 2023	$ 347,627	$ 75,134	127,135	232,519	(13,024)	$ (74,137)
Ending balance common stock, shares at Nov. 30, 2023	30,053,443	30,053,443
Ending balance, treasury stock , shares at Nov. 30, 2023						(4,220,876)
Beginning balance at Aug. 31, 2023	$ 343,146	$ 75,134	126,440	229,082	(13,384)	$ (74,126)
Beginning balance common stock, shares at Aug. 31, 2023		30,053,443
Begining balance, treasury stock , shares at Aug. 31, 2023						(4,220,210)
Net earnings	9,906			9,906
Adjustment to pension, net of deferred tax	360				360
Dividends paid	(6,469)			(6,469)
Stock based compensation	1,041		1,041
Exercise of stock options and restricted stock	(357)		(346)			$ (11)
Exercise of stock options and restricted stock, shares						(666)
Ending balance at Nov. 30, 2023	$ 347,627	$ 75,134	$ 127,135	$ 232,519	$ (13,024)	$ (74,137)
Ending balance common stock, shares at Nov. 30, 2023	30,053,443	30,053,443
Ending balance, treasury stock , shares at Nov. 30, 2023						(4,220,876)