Stockholders' Equity - Schedule of Treasury Stock Purchases and Issuance (Details) $ in Thousands	9 Months Ended
	Jun. 30, 2017 USD ($) shares
Shares
Beginning Balance (in shares) | shares	100,610
Ending Balance (in shares) | shares	154,837
Cost
Beginning Balance | $	$ 4,585
Ending Balance | $	$ 5,863
Treasury Stock
Shares
Beginning Balance (in shares) | shares	100,610
Purchased (in shares) | shares	75,623
Ending Balance (in shares) | shares	154,837
Cost
Beginning Balance | $	$ 4,585
Purchased | $	2,174
Ending Balance | $	$ 5,863
Treasury Stock | Director
Shares
Issued to Directors (in shares) | shares	(21,396)
Cost
Issued to Directors | $	$ (896)