v3.7.0.1
Stock Split (Details) - USD ($)
Mar. 01, 2017
Jun. 30, 2017
Sep. 30, 2016
Stockholders' Equity Note [Abstract]      
Common stock dividend from stock split (percentage) 50.00%    
Stock split ratio 1.5    
Common stock, par value (in dollars per share)   $ 5 $ 5
Adjustments to additional paid in capital, stock split $ 10,025,546    
Adjustments to retained earnings, stock split $ 2,004,244    
Stock issued, shares, stock split 2,405,958