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Income Taxes (Details Narrative) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Sep. 30, 2017
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2019
Mar. 31, 2018
Sep. 30, 2019
Sep. 30, 2018
Income tax (benefit) expense   $ 1,930 $ 1,499 $ 3,741 $ (6,728)    
Effective income tax rate percentage   22.30% 24.20% 22.20% 54.60%    
Deferred tax liabilities   $ 9,700   $ 9,700      
Statutory federal corporate income tax rate             24.50%
Unrecognized tax benefits released   $ 165   $ 165     $ 165
Forecast [Member]              
Statutory federal corporate income tax rate           21.00%  
Tax Cuts and Jobs Act Tax Act [Member]              
Income tax reconciliation description       The Tax Cuts and Jobs Act ("Tax Act") was enacted on December 22, 2017, and includes, among other items, a reduction in the federal corporate income tax rate from 35% to 21% effective January 1, 2018.      
Statutory federal corporate income tax rate       21.00% 21.00%    
Full Year Adjustment [Member]              
Deferred tax liabilities             $ 8,700
Statutory federal corporate income tax rate 35.00%