CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Operating activities:
Net income	$ 3,124	$ 2,167
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation expense	3,132	2,747
Amortization of intangible assets	2,175	1,693
Depreciation and amortization	284	390
Amortization of investment premiums & other	480	72
Accretion and amortization on debt securities	1,715	0
Net changes in estimated fair value of acquisition-related contingent consideration	30	0
Deferred taxes	(348)	(669)
Changes in assets and liabilities:
Accounts receivable	(402)	3,084
Contract assets	(175)	1,529
Other assets	(864)	(342)
Accounts payable	80	(501)
Accrued payroll and related taxes	(4,518)	(2,514)
Deferred revenue	(2,496)	1,273
Other liabilities	34	(199)
Net cash provided by operating activities	2,251	8,730
Investing activities:
Purchases of investments	(35,309)	(12,111)
Sales and maturities of investments	37,658	8,141
Purchases of property and equipment	(295)	(400)
Net cash provided by (used in) investing activities	2,054	(4,370)
Financing activities:
Proceeds from the issuance of equity plan common stock	25	1,889
Repurchases and retirements of common stock	(10,145)	0
Principal payments on other borrowings	(17)	(18)
Net cash provided by (used in) financing activities	(10,137)	1,871
Foreign currency effect on cash and cash equivalents	(266)	506
Net increase (decrease) in cash and cash equivalents	(6,098)	6,737
Cash and cash equivalents at beginning of period	30,312	19,986
Cash and cash equivalents at end of period	24,214	26,723
Supplemental disclosures of cash flow information:
Cash paid for income taxes	170	149
Supplemental disclosures of non-cash investing and financing activities:
Unrealized holding loss on available for sale investments	$ (270)	$ (53)