CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	May 31, 2023	May 31, 2022
Cash flows from operating activities
Net income	$ 9,427	$ 11,522
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	2,803	2,724
Change in value of contingent consideration	0	283
Amortization of investment (discounts) premiums	(738)	1,493
Stock-based compensation	3,548	2,279
Deferred income taxes	(1,346)	(46)
Currency translation adjustments	174	(251)
Increase (Decrease) in Other Operating Assets and Liabilities, Net [Abstract]
Accounts receivable	3,573	(8,736)
Prepaid income taxes	1,391	690
Prepaid expenses and other assets	(1,430)	1,208
Accounts payable	132	32
Other liabilities	161	(2,657)
Accrued income taxes	793	0
Deferred revenue	308	1,432
Net cash provided by operating activities	18,796	9,973
Cash flows from investing activities
Purchases of property and equipment	(257)	(740)
Purchase of short-term investments	(71,835)	(70,924)
Proceeds from maturities of short-term investments	82,007	75,932
Purchased intangibles	(519)	0
Capitalized computer software development costs	(2,550)	(2,266)
Net cash provided by investing activities	6,846	2,002
Cash flows from financing activities
Payment of dividends	(3,613)	(3,632)
Payments on contracts payable	0	(3,667)
Proceeds from the exercise of stock options	1,535	693
Repurchase and retirement of common shares	(20,000)	0
Net cash used in financing activities	(22,078)	(6,606)
Net increase in cash and cash equivalents	3,564	5,369
Cash and cash equivalents, beginning of year	51,567	36,984
Cash and cash equivalents, end of period	55,131	42,353
Supplemental disclosures of cash flow information
Income taxes paid	1,559	2,001
Non-Cash Investing and Financing Activities
Right of use assets capitalized	$ 0	$ 624