Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Operating activities:
Net loss	$ (5,736)	$ (607)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Stock-based compensation expense	1,889	1,085
Amortization of closing and earnout shares	355	376
Amortization of intangible assets	484	144
Depreciation and amortization	91	170
Amortization of investment premiums and other	(46)	9
Deferred taxes	4,417	0
Changes in assets and liabilities:
Accounts receivable	3,065	(631)
Other assets	(1,549)	364
Accounts payable	307	49
Accrued payroll and related taxes	(1,389)	(1,672)
Deferred revenue	(326)	(755)
Other liabilities	1,005	239
Net cash provided by (used in) operating activities	2,567	(1,229)
Investing activities:
Purchases of investments	(15,391)	(5,330)
Sales and maturities of investments	9,950	3,800
Acquisition, net of cash acquired	(2,991)	0
Purchases of property and equipment	(216)	(45)
Net cash used in investing activities	(8,648)	(1,575)
Financing activities:
Proceeds from exercise of stock options, net	137	19
Net cash provided by financing activities	137	19
Foreign currency effect on cash and cash equivalents	(4)	(10)
Net decrease in cash and cash equivalents	(5,948)	(2,795)
Cash and cash equivalents at beginning of period	12,289	9,010
Cash and cash equivalents at end of period	6,341	6,215
Supplemental disclosures of cash flow information:
Cash paid for income taxes	9	36
Supplemental disclosures of non-cash investing and financing activities:
Unrealized holding loss on available-for-sale investments	$ (59)	$ (21)