Unaudited Consolidated Statement of Changes in Shareholders' Equity - 6 months ended Aug. 31, 2018 - 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, 2018	$ 261,704	$ 75,134	$ 121,333	$ 164,177	$ (16,428)	$ (82,512)
Beginning balance common stock, shares at Feb. 28, 2018	30,053,443	30,053,443
Beginning balance, treasury stock, shares at Feb. 28, 2018						(4,789,228)
Net earnings	$ 18,814			18,814
Adjustment to pension, net of deferred tax of $169	508				508
Dividends paid ($0.425 per share)	(10,811)			(10,811)
Stock based compensation	674		674
Exercise of stock options and restricted stock	69		(1,528)			$ 1,597
Exercise of stock options and restricted stock, shares						110,139
Common stock issued for acquisition of business	16,218		1,874			$ 14,344
Common stock issued for acquisition of business, shares						829,126
Common stock repurchases	$ (680)					$ (680)
Common stock repurchases, shares	(37,943)					(37,943)
Ending balance at Aug. 31, 2018	$ 286,496	$ 75,134	$ 122,353	$ 172,180	$ (15,920)	$ (67,251)
Ending balance common stock, shares at Aug. 31, 2018	30,053,443	30,053,443
Ending balance treasury stock, shares at Aug. 31, 2018						(3,887,906)