Consolidated Condensed Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Shares	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Sep. 30, 2019		5,777
Beginning balance at Sep. 30, 2019	$ 36,054	$ 5,777	$ 10,438	$ 33,148	$ (13,309)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	(961)			(1,342)	381
Performance and restricted share expense	155		155
Share transactions under equity based plans (in shares)		86
Share transactions under equity based plans	(4)	$ 86	(90)
Ending balance (in shares) at Dec. 31, 2019		5,863
Ending balance at Dec. 31, 2019	35,244	$ 5,863	10,503	31,806	(12,928)
Beginning balance (in shares) at Sep. 30, 2020		5,916
Beginning balance at Sep. 30, 2020	45,523	$ 5,916	10,736	42,339	(13,468)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	3,491			2,993	498
Performance and restricted share expense	143		143
Share transactions under equity based plans (in shares)		43
Share transactions under equity based plans	(16)	$ 43	(59)
Ending balance (in shares) at Dec. 31, 2020		5,959
Ending balance at Dec. 31, 2020	$ 49,141	$ 5,959	$ 10,820	$ 45,332	$ (12,970)