CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings
Beginning Balance (in shares) at Sep. 30, 2023		13,950
Beginning balance at Sep. 30, 2023	$ 102,439	$ 14	$ 99,974	$ 2,451
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Expense related to director restricted stock units	80		80
Expense related to employee stock-based compensation	540		540
Exercise of stock options (in shares)		220
Exercise of stock options	261		261
Common stock surrendered for the exercise of stock options (in shares)		(65)
Common stock surrendered for the exercise of stock options	(669)		(669)
Net income	2,151			2,151
Ending Balance (in shares) at Dec. 31, 2023		14,105
Ending balance at Dec. 31, 2023	$ 104,802	$ 14	100,186	4,602
Beginning Balance (in shares) at Sep. 30, 2024	14,386	14,386
Beginning balance at Sep. 30, 2024	$ 110,132	$ 14	100,270	9,848
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Expense related to director restricted stock units	180		180
Expense related to employee stock-based compensation	$ 13		13
Exercise of stock options (in shares)	0
Net income	$ 1,115			1,115
Ending Balance (in shares) at Dec. 31, 2024	14,386	14,386
Ending balance at Dec. 31, 2024	$ 111,440	$ 14	$ 100,463	$ 10,963