CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating activities:
Net income (loss)	$ (5,511)	$ 9,899
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Stock-based compensation expense	7,318	5,146
Amortization of intangible assets	7,694	9,007
Amortization of costs capitalized to obtain revenue contracts	847	724
Depreciation and amortization	842	767
Bad debt expense	927	386
Amortization of investment premiums & other	(1,339)	(26)
Accretion and amortization on debt securities	3,975	3,700
Net changes in estimated fair value of acquisition-related contingent consideration	136	150
Deferred taxes	(1,859)	(6,827)
Changes in assets and liabilities, net of acquisitions:
Accounts receivable	(20,608)	(11,534)
Contract assets	6,147	(4,969)
Other assets	(5,055)	(1,477)
Accounts payable	1,424	367
Accrued payroll and related taxes	(1,058)	(2,724)
Income taxes payable	(4,086)	8,672
Deferred revenue	8,300	1,334
Restructuring accrual	0	(956)
Other liabilities	(493)	(78)
Net cash provided by (used in) operating activities	(2,399)	11,561
Investing activities:
Purchases of investments	(26,813)	0
Sales and maturities of investments	54,921	38,100
Purchases of property and equipment, net	(724)	(372)
Net cash provided by (used in) investing activities	27,384	37,728
Financing activities:
Payment of revolving credit line issuance costs	(290)	0
Proceeds from the issuance of equity plan common stock	1,042	1,295
Payment of acquisition-related contingent consideration	(4,641)	0
Proceeds from other borrowings	956	0
Principal payments on other borrowings	(82)	(36)
Net cash provided by (used in) financing activities	(3,015)	1,259
Foreign currency effect on cash and cash equivalents	56	440
Net increase in cash and cash equivalents	22,026	50,988
Cash and cash equivalents at beginning of period	58,913	32,059
Cash and cash equivalents at end of period	80,939	83,047
Supplemental disclosures of cash flow information:
Issuance of common stock for acquisition-related contingent consideration	3,471	0
Cash paid for interest	582	602
Cash paid for income taxes	8,509	2,057
Supplemental disclosures of non-cash investing and financing activities:
Unrealized holding gain on available for sale investments	$ 60	$ 648