Consolidated Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Shares	Additional Paid-In Capital	Retained Earnings	Total accumulated other comprehensive loss
Beginning balance (in shares) at Sep. 30, 2018		5,690
Beginning balance at Sep. 30, 2018	$ 44,190	$ 5,690	$ 10,031	$ 37,098	$ (8,629)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive loss	(1,603)			(1,282)	(321)
Performance and restricted share expense	236		236
Share transactions under equity based plans (in shares)		46
Share transactions under equity based plans	0	$ 46	(46)
Ending balance (in shares) at Dec. 31, 2018		5,736
Ending balance at Dec. 31, 2018	46,421	$ 5,736	10,221	39,414	(8,950)
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 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)