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	23,821			23,821
Adjustment to pension, net of deferred tax	784				784
Dividends paid	(12,921)			(12,921)
Stock based compensation	936		936
Exercise of stock options and restricted stock			(895)			$ 895
Exercise of stock options and restricted stock, shares						51,071
Common stock repurchases	(1,119)					$ (1,119)
Common stock repurchases, shares						(64,082)
Ending balance at Aug. 31, 2022	315,316	$ 75,134	124,031	208,898	(17,803)	$ (74,944)
Ending balance common stock, shares at Aug. 31, 2022		30,053,443
Ending balance, treasury stock , shares at Aug. 31, 2022						(4,266,835)
Beginning balance at May. 31, 2022	308,627	$ 75,134	123,862	203,158	(18,283)	$ (75,244)
Beginning balance common stock, shares at May. 31, 2022		30,053,443
Begining balance, treasury stock , shares at May. 31, 2022						(4,283,874)
Net earnings	12,194			12,194
Adjustment to pension, net of deferred tax	480				480
Dividends paid	(6,454)			(6,454)
Stock based compensation	469		469
Exercise of stock options and restricted stock	0		(300)			$ 300
Exercise of stock options and restricted stock, shares						17,039
Ending balance at Aug. 31, 2022	315,316	$ 75,134	124,031	208,898	(17,803)	$ (74,944)
Ending balance common stock, shares at Aug. 31, 2022		30,053,443
Ending balance, treasury stock , shares at Aug. 31, 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	$ 22,545			22,545
Adjustment to pension, net of deferred tax	720				720
Dividends paid	(12,922)			(12,922)
Stock based compensation	$ 1,371		1,371
Exercise of stock options and restricted stock			(818)			$ 818
Exercise of stock options and restricted stock, shares						46,625
Common stock repurchases, shares	0
Ending balance at Aug. 31, 2023	$ 343,146	$ 75,134	126,440	229,082	(13,384)	$ (74,126)
Ending balance common stock, shares at Aug. 31, 2023	30,053,443	30,053,443
Ending balance, treasury stock , shares at Aug. 31, 2023						(4,220,210)
Beginning balance at May. 31, 2023	$ 337,681	$ 75,134	126,101	224,635	(13,717)	$ (74,472)
Beginning balance common stock, shares at May. 31, 2023		30,053,443
Begining balance, treasury stock , shares at May. 31, 2023						(4,239,929)
Net earnings	10,910			10,910
Adjustment to pension, net of deferred tax	333				333
Dividends paid	(6,463)			(6,463)
Stock based compensation	685		685
Exercise of stock options and restricted stock			(346)			$ 346
Exercise of stock options and restricted stock, shares						19,719
Ending balance at Aug. 31, 2023	$ 343,146	$ 75,134	$ 126,440	$ 229,082	$ (13,384)	$ (74,126)
Ending balance common stock, shares at Aug. 31, 2023	30,053,443	30,053,443
Ending balance, treasury stock , shares at Aug. 31, 2023						(4,220,210)