CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - 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	(1,050)			(1,050)
Other comprehensive income (loss)	197				197
Issuance of common stock pursuant to the vesting of restricted stock units, Shares		57,332
Purchase of treasury stock	(828)					$ (828)
Purchase of treasury stock, Shares		(117,637)
Stock-based compensation	548		548
Ending Balance at Dec. 31, 2020	159,837	$ 137	91,513	85,516	(16,501)	(828)
Ending Balance, Shares at Dec. 31, 2020		13,610,334
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	(9,021)
Other comprehensive income (loss)	532
Ending Balance at Jun. 30, 2021	150,403	$ 137	92,475	77,545	(16,166)	(3,588)
Ending Balance, Shares at Jun. 30, 2021		13,315,397
Beginning Balance at Dec. 31, 2020	159,837	$ 137	91,513	85,516	(16,501)	(828)
Beginning Balance, Shares at Dec. 31, 2020		13,610,334
Net loss	(7,184)			(7,184)
Other comprehensive income (loss)	63				63
Forfeiture of restricted stock, Shares		(375)
Issuance of common stock pursuant to the vesting of restricted stock units, Shares		13,500
Purchase of treasury stock	(1,500)					(1,500)
Purchase of treasury stock, Shares		(157,551)
Stock-based compensation	479		479
Ending Balance at Mar. 31, 2021	151,695	$ 137	91,992	78,332	(16,438)	(2,328)
Ending Balance, Shares at Mar. 31, 2021		13,465,908
Net loss	(787)			(787)
Other comprehensive income (loss)	272				272
Forfeiture of restricted stock, Shares		(2,000)
Purchase of treasury stock	(1,260)					(1,260)
Purchase of treasury stock, Shares		(148,511)
Stock-based compensation	483		483
Ending Balance at Jun. 30, 2021	150,403	$ 137	92,475	77,545	(16,166)	(3,588)
Ending Balance, Shares at Jun. 30, 2021		13,315,397
Beginning Balance at Sep. 30, 2021	$ 142,457	$ 137	92,935	72,510	(16,320)	(6,805)
Beginning Balance, Shares at Sep. 30, 2021	12,969,542	12,969,542
Net loss	$ (6,768)			(6,768)
Other comprehensive income (loss)	(142)				(142)
Issuance of common stock pursuant to the vesting of restricted stock units	1	$ 1
Issuance of common stock pursuant to the vesting of restricted stock units, Shares		84,762
Purchase of treasury stock	(695)					(695)
Purchase of treasury stock, Shares		(72,563)
Stock-based compensation	536		536
Ending Balance at Dec. 31, 2021	135,389	$ 138	93,471	65,742	(16,462)	(7,500)
Ending Balance, Shares at Dec. 31, 2021		12,981,741
Beginning Balance at Sep. 30, 2021	$ 142,457	$ 137	92,935	72,510	(16,320)	(6,805)
Beginning Balance, Shares at Sep. 30, 2021	12,969,542	12,969,542
Net loss	$ (14,816)
Other comprehensive income (loss)	943
Ending Balance at Jun. 30, 2022	$ 129,232	$ 139	94,276	57,694	(15,377)	(7,500)
Ending Balance, Shares at Jun. 30, 2022	13,019,241	13,019,241
Beginning Balance at Dec. 31, 2021	$ 135,389	$ 138	93,471	65,742	(16,462)	(7,500)
Beginning Balance, Shares at Dec. 31, 2021		12,981,741
Net loss	(1,474)			(1,474)
Other comprehensive income (loss)	(1,556)				(1,556)
Issuance of common stock pursuant to the vesting of restricted stock units		$ 1	(1)
Issuance of common stock pursuant to the vesting of restricted stock units, Shares		37,500
Stock-based compensation	418		418
Ending Balance at Mar. 31, 2022	132,777	$ 139	93,888	64,268	(18,018)	(7,500)
Ending Balance, Shares at Mar. 31, 2022		13,019,241
Net loss	(6,574)			(6,574)
Other comprehensive income (loss)	2,641				2,641
Stock-based compensation	388		388
Ending Balance at Jun. 30, 2022	$ 129,232	$ 139	$ 94,276	$ 57,694	$ (15,377)	$ (7,500)
Ending Balance, Shares at Jun. 30, 2022	13,019,241	13,019,241