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, 2018		5,690
Beginning balance at Sep. 30, 2018	$ 44,189	$ 5,690	$ 10,031	$ 37,097	$ (8,629)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	(2,912)			(2,540)	(372)
Share retirement (in shares)		(21)
Share retirement	(62)	$ (21)		(41)
Performance and restricted share expense	446		446
Share transactions under equity based plans (in shares)		104
Share transactions under equity based plans	(20)	$ 104	(124)
Ending balance (in shares) at Mar. 31, 2019		5,773
Ending balance at Mar. 31, 2019	45,239	$ 5,773	10,353	38,114	(9,001)
Beginning balance (in shares) at Dec. 31, 2018		5,736
Beginning balance at Dec. 31, 2018	46,421	$ 5,736	10,221	39,413	(8,949)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	(1,310)			(1,258)	(52)
Share retirement (in shares)		(21)
Share retirement	(62)	$ (21)		(41)
Performance and restricted share expense	208		208
Share transactions under equity based plans (in shares)		58
Share transactions under equity based plans	(18)	$ 58	(76)
Ending balance (in shares) at Mar. 31, 2019		5,773
Ending balance at Mar. 31, 2019	45,239	$ 5,773	10,353	38,114	(9,001)
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)	2,419			1,919	500
Performance and restricted share expense	225		225
Share transactions under equity based plans (in shares)		139
Share transactions under equity based plans	(8)	$ 139	(147)
Ending balance (in shares) at Mar. 31, 2020		5,916
Ending balance at Mar. 31, 2020	38,690	$ 5,916	10,516	35,067	(12,809)
Beginning balance (in shares) at Dec. 31, 2019		5,863
Beginning balance at Dec. 31, 2019	35,245	$ 5,863	10,503	31,807	(12,928)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	3,379			3,260	119
Performance and restricted share expense	70		70
Share transactions under equity based plans (in shares)		53
Share transactions under equity based plans	(4)	$ 53	(57)
Ending balance (in shares) at Mar. 31, 2020		5,916
Ending balance at Mar. 31, 2020	$ 38,690	$ 5,916	$ 10,516	$ 35,067	$ (12,809)