CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common stock and additional paid in capital	Retained earnings	Accumulated other comprehensive (loss) income
Balance, beginning of period at Aug. 31, 2021		$ 133,418	$ 32,407	$ (43)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options		372
Stock-based compensation		634
Shares issued to Directors for services		88
Declaration of dividends			(1,209)
Net income	$ 3,026		3,026
Other comprehensive income (loss)				(237)
Balance, end of period at Nov. 30, 2021	$ 168,456	134,512	34,224	(280)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per common share (in usd per share)	$ 0.06
Balance, beginning of period at Aug. 31, 2022	$ 178,248	138,512	40,044	(308)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options		758
Stock-based compensation		886
Shares issued to Directors for services		150
Declaration of dividends			(1,218)
Net income	1,245		1,245
Other comprehensive income (loss)				53
Balance, end of period at Nov. 30, 2022	$ 180,122	$ 140,306	$ 40,071	$ (255)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per common share (in usd per share)	$ 0.06