Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock, Common	Accumulated Other Comprehensive Income/(Loss)
Balance (in shares) at Sep. 30, 2020		12,422,000
Balance Treasury Stock (in shares) at Sep. 30, 2020					806,000
Balance at Sep. 30, 2020	$ 306,626	$ 124	$ 61,998	$ 294,016	$ (24,999)	$ (24,513)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(364)			(364)
Foreign currency translation adjustments	4,349					4,349
Stock-based compensation (in shares)		59,000
Stock-based compensation	894	$ 1	893
Shares withheld in lieu of employee tax withholding	(632)		(632)
Dividends	(3,028)			(3,028)
Balance (in shares) at Dec. 31, 2020		12,481,000
Balance Treasury Stock (in shares) at Dec. 31, 2020					806,000
Balance at Dec. 31, 2020	307,845	$ 125	62,259	290,624	$ (24,999)	(20,164)
Balance (in shares) at Sep. 30, 2020		12,422,000
Balance Treasury Stock (in shares) at Sep. 30, 2020					806,000
Balance at Sep. 30, 2020	306,626	$ 124	61,998	294,016	$ (24,999)	(24,513)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(2,629)
Foreign currency translation adjustments	6,544
Balance (in shares) at Jun. 30, 2021		12,498,000
Balance Treasury Stock (in shares) at Jun. 30, 2021					806,000
Balance at Jun. 30, 2021	302,941	$ 125	63,500	282,284	$ (24,999)	(17,969)
Balance (in shares) at Dec. 31, 2020		12,481,000
Balance Treasury Stock (in shares) at Dec. 31, 2020					806,000
Balance at Dec. 31, 2020	307,845	$ 125	62,259	290,624	$ (24,999)	(20,164)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(225)			(225)
Foreign currency translation adjustments	894					894
Stock-based compensation (in shares)		17,000
Stock-based compensation	853		853
Dividends	(3,035)			(3,035)
Balance (in shares) at Mar. 31, 2021		12,498,000
Balance Treasury Stock (in shares) at Mar. 31, 2021					806,000
Balance at Mar. 31, 2021	306,332	$ 125	63,112	287,364	$ (24,999)	(19,270)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(2,041)			(2,041)
Foreign currency translation adjustments	1,301					1,301
Stock-based compensation (in shares)		0
Stock-based compensation	388		388
Dividends	(3,039)			(3,039)
Balance (in shares) at Jun. 30, 2021		12,498,000
Balance Treasury Stock (in shares) at Jun. 30, 2021					806,000
Balance at Jun. 30, 2021	$ 302,941	$ 125	63,500	282,284	$ (24,999)	(17,969)
Balance (in shares) at Sep. 30, 2021		12,498,000
Balance Treasury Stock (in shares) at Sep. 30, 2021	(806,018)				(806,000)
Balance at Sep. 30, 2021	$ 301,223	$ 125	63,948	282,505	$ (24,999)	(20,356)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(2,846)			(2,846)
Foreign currency translation adjustments	54					54
Stock-based compensation (in shares)		72,000
Stock-based compensation	1,008	$ 1	1,007
Shares withheld in lieu of employee tax withholding	(660)		(660)
Dividends	(3,200)		69	(3,269)
Balance (in shares) at Dec. 31, 2021		12,570,000
Balance Treasury Stock (in shares) at Dec. 31, 2021					(806,000)
Balance at Dec. 31, 2021	$ 295,579	$ 126	64,364	276,390	$ (24,999)	(20,302)
Balance (in shares) at Sep. 30, 2021		12,498,000
Balance Treasury Stock (in shares) at Sep. 30, 2021	(806,018)				(806,000)
Balance at Sep. 30, 2021	$ 301,223	$ 125	63,948	282,505	$ (24,999)	(20,356)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	4,998
Foreign currency translation adjustments	$ (2,501)
Balance (in shares) at Jun. 30, 2022		12,587,000
Balance Treasury Stock (in shares) at Jun. 30, 2022	(806,018)				(806,000)
Balance at Jun. 30, 2022	$ 295,948	$ 126	65,661	278,017	$ (24,999)	(22,857)
Balance (in shares) at Dec. 31, 2021		12,570,000
Balance Treasury Stock (in shares) at Dec. 31, 2021					(806,000)
Balance at Dec. 31, 2021	295,579	$ 126	64,364	276,390	$ (24,999)	(20,302)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(1,217)			(1,217)
Foreign currency translation adjustments	902					902
Stock-based compensation (in shares)		17,000
Stock-based compensation	711		711
Dividends	(3,105)			(3,105)
Balance (in shares) at Mar. 31, 2022		12,587,000
Balance Treasury Stock (in shares) at Mar. 31, 2022					(806,000)
Balance at Mar. 31, 2022	292,870	$ 126	65,075	272,068	$ (24,999)	(19,400)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	9,061			9,061
Foreign currency translation adjustments	(3,457)					(3,457)
Stock-based compensation	588		588
Shares withheld in lieu of employee tax withholding	(3)		(3)
Dividends	$ (3,111)			(3,112)
Balance (in shares) at Jun. 30, 2022		12,587,000
Balance Treasury Stock (in shares) at Jun. 30, 2022	(806,018)				(806,000)
Balance at Jun. 30, 2022	$ 295,948	$ 126	$ 65,661	$ 278,017	$ (24,999)	$ (22,857)