CONSOLIDATED STATEMENTS OF OPERATIONS AND OTHER COMPREHENSIVE INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019		Sep. 30, 2018
Revenue	$ 101,310	$ 84,590		$ 63,559
Operating costs and expenses
Selling and marketing	27,646	24,550	[1]	19,254	[1]
Research and development	22,859	21,873	[1]	18,118	[1]
General and administrative	22,284	19,861		17,067
Acquisition-related costs and expenses	6,575	7,563		8,239
Restructuring costs	(114)	3,067		0
Total operating costs and expenses	92,442	89,180		71,365
Operating income (loss)	8,868	(4,590)		(7,806)
Other income (expense), net	541	602		(935)
Income (loss) before income taxes	9,409	(3,988)		(8,741)
Income tax benefit (provision)	(1,595)	3,264		(3,066)
Net income (loss)	$ 7,814	$ (724)		$ (11,807)
Net income (loss) per share—basic (in dollars per share)	$ 0.19	$ (0.02)		$ (0.33)
Net income (loss) per share—diluted (in dollars per share)	$ 0.18	$ (0.02)		$ (0.33)
Shares used in calculating net income (loss) per share—basic (in shares)	41,410	39,341		35,811
Shares used in calculating net income (loss) per share—diluted (in shares)	42,533	39,341		35,811
Other comprehensive income (loss)
Net income (loss)	$ 7,814	$ (724)		$ (11,807)
Foreign currency translation gains (losses)	3,635	(3,504)		(723)
Unrealized gain (loss) on investments	103	29		(10)
Other comprehensive income (loss)	11,552	(4,199)		(12,540)
Software and hardware
Revenue	54,152	46,845		40,698
Operating costs and expenses
Cost of revenue	3,303	3,711		3,064
Services and other
Revenue	47,158	37,745		22,861
Operating costs and expenses
Cost of revenue	$ 9,889	$ 8,555		$ 5,622

[1] September 30, 2019 and 2018 consolidated statements of operations reflect reclassifications to conform to the current year presentation.