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Condensed Consolidated Statements of Cash Flows (Unaudited) (Parenthetical) - USD ($)
$ in Thousands
9 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Income taxes, net of refund $ 42 $ 1,017
Number of common shares purchased and retired   89,685
Floor Rate [Member]    
Interest percentage 5.50%  
Prime Rate [Member]    
Interest percentage 2.00%