Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Nov. 30, 2016	Nov. 30, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 873	$ 6,944
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	4,035	4,295
Provision for uncollectible accounts receivable	(255)	153
Deferred income taxes	1,541	2,060
Share-based compensation expense	935	906
Other, net	388	1,648
Changes in assets and liabilities:
Receivables	10,436	2,503
Inventories	(5,741)	(3,749)
Other current assets	3,000	982
Accounts payable	415	733
Other current liabilities	(2,232)	(6,322)
Current income taxes payable	(4,344)	(1,036)
Other noncurrent assets and liabilities	(947)	(614)
Net cash provided by operating activities	8,104	8,503
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(1,390)	(4,705)
Proceeds from settlement of net investment hedges		231
Payments for settlement of net investment hedges	(159)	(512)
Other investing activities, net	134	749
Net cash used in investing activities	(1,415)	(4,237)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from exercise of stock options		72
Common stock withheld for payroll tax withholdings	(635)	(719)
Principal payments on long-term debt	(49)	(48)
Repurchase of common shares		(9,249)
Dividends paid	(3,089)	(3,134)
Net cash used in financing activities	(3,773)	(13,078)
Effect of exchange rate changes on cash and cash equivalents	(1,104)	(1,021)
Net change in cash and cash equivalents	1,812	(9,833)
Cash and cash equivalents, beginning of period	101,246	139,093
Cash and cash equivalents, end of period	103,058	129,260
SUPPLEMENTAL CASH FLOW INFORMATION
Income taxes paid	3,061	4,897
Interest paid	$ 97	$ 70