CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Nov. 30, 2021	Nov. 30, 2020
Condensed Consolidated Statements Of Operations [Abstract]
Net sales	$ 134,746	$ 124,559
Cost of products sold	66,276	54,313
Gross profit	68,470	70,246
Operating expenses:
Selling, general and administrative	38,423	35,977
Advertising and sales promotion	5,624	5,519
Amortization of definite-lived intangible assets	363	358
Total operating expenses	44,410	41,854
Income from operations	24,060	28,392
Other income (expense):
Interest income	25	19
Interest expense	(620)	(570)
Other income (expense), net	(329)	179
Income before income taxes	23,136	28,020
Provision for income taxes	4,581	4,397
Net income	$ 18,555	$ 23,623
Earnings per common share:
Basic	$ 1.35	$ 1.72
Diluted	$ 1.34	$ 1.72
Shares used in per share calculations:
Basic	13,716	13,675
Diluted	13,752	13,706