Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Numerator:
Net income	$ 4,126	$ 3,157	$ 8,160	$ 5,778
Denominator:
Denominator for basic net income per common share — weighted average shares outstanding	35,131,000	34,057,000	34,900,000	31,443,000
Effect of dilutive securities:
Stock options and restricted stock units	609,000	1,091,000	840,000	1,263,000
Denominator for diluted net income per common share — adjusted weighted average shares	35,740,000	35,148,000	35,740,000	32,706,000
Basic net income per common share:
Net income, basic (USD per share)	$ 0.12	$ 0.09	$ 0.23	$ 0.18
Diluted net income per common share
Net income , diluted (USD per share)	$ 0.12	$ 0.09	$ 0.23	$ 0.18
Potentially dilutive securities excluded from computation of earnings per share	939,101	994,096	778,573	864,744