Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Operating activities
Net income	$ 13,616	$ 14,698
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	9,297	8,433
Stock compensation expense	7,208	6,023
Inventory adjustment to net realizable value	163	859
Provision for doubtful accounts	733	519
Deferred tax expense	4,318	4,556
Gain on disposal of property and equipment	(30)	(60)
Changes in operating assets and liabilities:
Accounts receivable	(1,599)	5,209
Inventory	(2,286)	(1,636)
Prepaid taxes and tax refund receivable	134	(135)
Prepaid expenses and other assets	(5,521)	(2,117)
Operating lease assets and liabilities	1,353	(207)
Accounts payable	1,549	2,496
Accrued expenses and other current liabilities	3,795	(2,762)
Deferred revenue	204	261
Payables to sellers	15,281	(3,653)
Other liabilities	0	(128)
Net cash provided by operating activities	48,215	32,356
Investing activities
Cash paid for business acquisition, net of cash acquired	(13,265)	0
Purchases of property and equipment, including capitalized software	(6,065)	(3,905)
Purchase of short-term investments	(2,264)	(5,603)
Maturities of short-term investments	3,888	0
Other investing activities, net	60	58
Net cash used in investing activities	(17,646)	(9,450)
Financing activities
Common stock repurchases	(9,426)	(21,198)
Taxes paid associated with net settlement of stock compensation awards	(1,455)	(1,060)
Payments of the principal portion of finance lease liabilities	(72)	(75)
Proceeds from exercise of stock options, net of tax	128	496
Net cash used in financing activities	(10,825)	(21,837)
Effect of exchange rate differences on cash and cash equivalents	287	956
Net decrease in cash and cash equivalents	20,031	2,025
Cash and cash equivalents at beginning of period	110,281	96,122
Cash and cash equivalents at end of period	130,312	98,147
Supplemental disclosure of cash flow information
Cash paid for income taxes, net	$ 810	975
Non-cash: Common stock surrendered in the exercise of stock options		$ 191