CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2018
Operating activities:
Net income (loss)	$ 7,814	$ (724)	$ (11,807)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Stock-based compensation expense	9,551	9,637	8,950
Amortization of closing shares and earnout shares	0	0	355
Amortization of acquisition-related intangible assets	6,439	7,024	4,023
Depreciation and other amortization	1,504	1,388	615
Accretion and amortization on debt securities and other	63	(134)	(14)
Net change in the estimated fair value of acquisition-related contingent consideration	136	472	1,750
Deferred income taxes	1,903	(3,775)	3,636
Changes in assets and liabilities:
Accounts receivable	(361)	1,564	(5,673)
Contract assets	(6,695)	(1,757)
Other assets	173	(769)	(1,676)
Accounts payable	277	28	309
Accrued payroll and related taxes	2,343	(1,529)	2,553
Deferred revenue	3,141	1,125	1,670
Restructuring accrual	(1,562)	1,573	0
Other liabilities	(604)	127	935
Net cash provided by operating activities	24,122	14,250	5,626
Investing activities:
Purchases of investments	(44,725)	(24,410)	(15,391)
Sales and maturities of investments	20,822	14,966	41,018
Payments for business acquisitions, net of cash acquired	0	0	(29,744)
Purchases of property and equipment	(803)	(1,063)	(4,307)
Net cash used in investing activities	(24,706)	(10,507)	(8,424)
Financing activities:
Proceeds from the issuance of equity plan common stock	4,809	5,581	1,125
Repurchases and retirements of common stock	(1,002)	0	0
Payment of acquisition-related contingent consideration	(478)	(1,030)	(1,284)
Proceeds from other borrowings	217	128	0
Principal payments on other borrowings	(143)	(296)	(270)
Net cash provided by (used in) financing activities	3,403	4,383	(429)
Foreign currency effect on cash and cash equivalents	419	(406)	(34)
Net increase (decrease) in cash and cash equivalents	3,238	7,720	(3,261)
Cash and cash equivalents at beginning of period	16,748	9,028	12,289
Cash and cash equivalents at end of period	19,986	16,748	9,028
Supplemental disclosures of cash flow information:
Cash paid for interest	0	0	29
Cash paid (received) for income taxes	(451)	310	402
Supplemental disclosures of non-cash investing and financing activities:
Unrealized holding gain (loss) on available for sale investments	$ 103	$ 29	$ (10)