Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock
Beginning Balance at Sep. 30, 2020	$ 160,970	$ 137	$ 90,965	$ 86,566	$ (16,698)
Beginning Balance, Shares at Sep. 30, 2020		13,670,639
Net loss	(14,056)			(14,056)
Other comprehensive income	378				378
Issuance of common stock pursuant to the vesting of restricted stock units, Shares		70,832
Forfeiture of restricted stock, Shares		(2,500)
Purchase of treasury stock	(6,805)					$ (6,805)
Purchase of treasury stock, Shares		(769,429)
Stock-based compensation	1,970		1,970
Ending Balance at Sep. 30, 2021	$ 142,457	$ 137	92,935	72,510	(16,320)	(6,805)
Ending Balance, Shares at Sep. 30, 2021	12,969,542	12,969,542
Net loss	$ (22,856)			(22,856)
Other comprehensive income	1,007				1,007
Issuance of common stock pursuant to the vesting of restricted stock units		$ 2	(2)
Issuance of common stock pursuant to the vesting of restricted stock units, Shares		124,262
Purchase of treasury stock	(695)					(695)
Purchase of treasury stock, Shares		(72,563)
Stock-based compensation	1,734		1,734
Ending Balance at Sep. 30, 2022	$ 121,647	$ 139	$ 94,667	$ 49,654	$ (15,313)	$ (7,500)
Ending Balance, Shares at Sep. 30, 2022	13,021,241	13,021,241