CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2015
OPERATING ACTIVITIES
Net income	$ 14,092	$ 1,959	$ 2,526
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation expense	5,478	4,079	3,367
Amortization of closing and earnout shares	1,579	1,503	393
Amortization of intangible assets	591	598	172
Depreciation	322	790	433
Amortization of investment premiums and other	30	149	435
Deferred taxes	(11,065)	(127)	(647)
Changes in assets and liabilities:
Accounts receivable	(2,101)	(1,002)	(566)
Other assets	249	(586)	(533)
Accounts payable	593	(222)	(449)
Accrued payroll and related taxes	429	1,197	480
Deferred revenue	(269)	(67)	478
Other liabilities	517	(417)	16
Net cash provided by operating activities	10,445	7,854	6,105
INVESTING ACTIVITIES
Purchases of investments	(39,939)	(33,658)	(27,254)
Sales and maturities of investments	32,650	30,623	21,406
Acquisition, net of cash acquired	0	0	(5,423)
Purchases of property and equipment	(488)	(250)	(73)
Net cash used in investing activities	(7,777)	(3,285)	(11,344)
FINANCING ACTIVITIES
Proceeds from exercise of stock options	687	1,755	246
Principal payments on capital lease obligations	0	(22)	(20)
Net cash provided by financing activities	687	1,733	226
Foreign currency effect on cash and cash equivalents	(76)	(45)	(1)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	3,279	6,257	(5,014)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	9,010	2,753	7,767
CASH AND CASH EQUIVALENTS AT END OF PERIOD	12,289	9,010	2,753
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash paid for interest	0	1	4
Cash paid for income taxes	113	17	105
NON-CASH FINANCING AND INVESTING ACTIVITIES
Settlement of note receivable as consideration for business acquisition	0	0	250
Unrealized holding gain (loss) on available for sale investments	$ (19)	$ 7	$ 5