Consolidated Condensed Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Sep. 30, 2021		5,987
Beginning balance at Sep. 30, 2021	$ 49,622	$ 5,987	$ 11,118	$ 41,596	$ (9,079)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive (loss) income	(73)			(52)	(21)
Performance and restricted share expense	306		306
Share transactions under equity-based plans (in shares)		53
Share transactions under equity-based plans	(107)	$ 53	(160)
Ending balance (in shares) at Mar. 31, 2022		6,040
Ending balance at Mar. 31, 2022	49,748	$ 6,040	11,264	41,544	(9,100)
Beginning balance (in shares) at Dec. 31, 2021		6,003
Beginning balance at Dec. 31, 2021	45,981	$ 6,003	11,156	37,905	(9,083)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive (loss) income	3,622			3,639	(17)
Performance and restricted share expense	145		145
Share transactions under equity-based plans (in shares)		37
Share transactions under equity-based plans	0	$ 37	(37)
Ending balance (in shares) at Mar. 31, 2022		6,040
Ending balance at Mar. 31, 2022	$ 49,748	$ 6,040	11,264	41,544	(9,100)
Beginning balance (in shares) at Sep. 30, 2022	6,040	6,040
Beginning balance at Sep. 30, 2022	$ 40,690	$ 6,040	11,387	31,956	(8,693)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive (loss) income	(4,387)			(4,956)	569
Performance and restricted share expense	207		207
Share transactions under equity-based plans (in shares)		68
Share transactions under equity-based plans	$ (71)	$ 68	(139)
Ending balance (in shares) at Mar. 31, 2023	6,108	6,108
Ending balance at Mar. 31, 2023	$ 36,439	$ 6,108	11,455	27,000	(8,124)
Beginning balance (in shares) at Dec. 31, 2022		6,072
Beginning balance at Dec. 31, 2022	38,573	$ 6,072	11,406	29,367	(8,272)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive (loss) income	(2,219)			(2,367)	148
Performance and restricted share expense	85		85
Share transactions under equity-based plans (in shares)		36
Share transactions under equity-based plans	$ 0	$ 36	(36)
Ending balance (in shares) at Mar. 31, 2023	6,108	6,108
Ending balance at Mar. 31, 2023	$ 36,439	$ 6,108	$ 11,455	$ 27,000	$ (8,124)