Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Revenue:
Total Revenue	$ 94,713	$ 77,301	$ 178,970	$ 150,447
Cost of sales:
Amortization of intangibles	1,303	1,111	2,692	2,225
Total cost of sales	42,729	36,844	79,105	68,971
Gross Profit	51,984	40,457	99,865	81,476
Operating expenses:
Sales and marketing	17,776	15,437	33,095	30,361
Research and development	13,819	11,355	27,231	22,448
General and administrative	12,825	10,134	28,067	24,549
Restructuring charge	0	161	109	894
Total operating expenses	44,420	37,087	88,502	78,252
Operating income (loss)	7,564	3,370	11,363	3,224
Other expense, net:
Interest income	2	1	7	1
Interest expense	(4,465)	(246)	(9,368)	(648)
Other expense, net	139	77	37	(115)
Total other expense, net	(4,324)	(168)	(9,324)	(762)
Income before income taxes	3,240	3,202	2,039	2,462
Income tax benefit	393	274	(1,995)	(159)
Net income	$ 2,847	$ 2,928	$ 4,034	$ 2,621
Basic net income per common share:
Net income, basic (USD per share)	$ 0.08	$ 0.09	$ 0.12	$ 0.09
Diluted net income per common share
Net income (loss), diluted (USD per share)	$ 0.08	$ 0.09	$ 0.11	$ 0.08
Weighted average common shares:
Basic (shares)	35,015	30,900	34,785	30,129
Diluted (shares)	35,608	32,223	35,710	31,436
Product
Revenue:
Revenue	$ 69,167	$ 66,924	$ 132,965	$ 129,528
Cost of sales:
Cost of sales excluding amortization	34,483	32,495	63,722	60,271
Service
Revenue:
Revenue	25,546	10,377	46,005	20,919
Cost of sales:
Cost of sales excluding amortization	$ 6,943	$ 3,238	$ 12,691	$ 6,475