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Income Taxes (Details Narrative) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2017
Mar. 31, 2016
Sep. 30, 2016
Income tax expense $ 1,908 $ 293 $ 3,358 $ 1,660  
Liability for uncertain tax positions 231   231   $ 1,000
Interest and penalties for unrecognized tax benefits $ 600   $ 600    
Minimum [Member]          
Effective income tax rate percentage     17.70%    
Maximum [Member]          
Effective income tax rate percentage     33.50%