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Consolidated Statements of Shareholders' Equity - USD ($)
$ in Thousands
Total
Common Shares
Additional Paid-In Capital
Retained Earnings
Accumulated Other Comprehensive Loss
Beginning Balance at Sep. 30, 2016 $ 60,370 $ 5,525 $ 9,219 $ 58,476 $ (12,850)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Comprehensive loss (10,610)     (14,209) 3,599
Performance and restricted share expense 404   404    
Share transactions under employee stock plans (33) 71 (104)    
Ending Balance at Sep. 30, 2017 50,131 5,596 9,519 44,267 (9,251)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Comprehensive loss (6,548)     (7,170) 622
Performance and restricted share expense 620   620    
Share transactions under employee stock plans (14) 94 (108)    
Ending Balance at Sep. 30, 2018 $ 44,189 $ 5,690 $ 10,031 $ 37,097 $ (8,629)