Subsequent Events (Details) - Subsequent Event [Member] $ in Millions	Jul. 11, 2018 USD ($)
Poage Bankshares, Inc. [Member]
Subsequent Event [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 4.0
Farmers Deposit Bancorp, Inc. [Member]
Subsequent Event [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	1.5
Pro Forma [Member] | Poage Bankshares, Inc. [Member]
Subsequent Event [Line Items]
Business Acquisition, Transaction Costs	18.0
Pro Forma [Member] | Farmers Deposit Bancorp, Inc. [Member]
Subsequent Event [Line Items]
Business Acquisition, Transaction Costs	$ 6.0