Revenue Recognition	9 Months Ended
Revenue Recognition	Jun. 30, 2019
Revenue from Contract with Customer [Abstract]
Revenue Recognition	REVENUE RECOGNITION On October 1, 2018, the Company adopted ASU 2014-09, Revenue from Contracts with Customers, and all subsequent ASUs that modified the principles for recognizing revenue. The Company's primary sources of revenue consist of net interest income on financial assets and liabilities, which are not within the scope of the amended ASU. In addition, certain non-interest income revenue streams, such as loan servicing fees, derivatives, and BOLI, are not in-scope of the amended ASU. Based on an assessment of non-interest income revenue streams and a review of the related contracts with customers, the Company concluded the amended ASU did not significantly change the Company's revenue recognition methods. The Company elected to implement the amended ASU using the modified retrospective application with a cumulative adjustment, which increased opening retained earnings at October 1, 2018 by $394 thousand related to contracts that were not complete upon adoption. The amount was related to the change in the recognition of revenue related to certain insurance commissions. Details of the Company's primary types of non-interest income revenue streams by financial statement line reported in the consolidated statements of income that are within the scope of the amended ASU and ASC Topic 606 are below. During the current year nine month period, revenue from contracts with customers totaled $12.4 million. Deposit Service Fees Interchange Transaction Fees - Interchange transaction fee income primarily consists of interchange fees earned on a transactional basis through card payment networks. The performance obligation for these types of transactions is satisfied as services are rendered for each transaction and revenue is recognized daily concurrently with the transaction processing services provided to the cardholder. In order to participate in the card payment networks, the Company must pay various transaction related costs established by the networks ("interchange network charges"), including membership fees and a per unit charge for each transaction. The Company determined it is acting as an agent for its debit card customers when they are utilizing the card payment networks; therefore, upon adoption of the amended ASU, interchange transaction fee income is reported net of interchange network charges. Previously, interchange network charges were reported in deposit and loan expense. Interchange network charges totaled $2.5 million and $2.2 million for the nine months ended June 30, 2019 and 2018, respectively. Service Charges on Deposit Accounts - Service charges on deposit accounts consist of account maintenance and transaction-based fees such as overdrafts, insufficient funds, wire transfers and the use of out-of-network ATMs. The Company's performance obligation is satisfied over a period of time, generally a month, for account maintenance and at the time of service for transaction-based fees. Revenue is recognized after the performance obligation is satisfied. Payments are typically collected from the customer's deposit account at the time the transaction is processed and/or at the end of the customer's statement cycle (typically monthly). Other Non-Interest Income Trust Asset Management Income - The Company provides trust asset management services to customers. The Company primarily earns fees for these services over time as the monthly services are provided and the Company assesses revenue at each month end. Fees are charged based on a tiered scale of the market value of the individual trust asset accounts at the end of the month. Insurance Commissions - Commissions are received on insurance product sales. The Company acts in the capacity of an agent between the Company's customer and the insurance carrier. The Company's performance obligation is satisfied when the terms of the policy have been agreed upon and the insurance policy becomes effective. Additionally, the Company earns performance-based incentives ("contingent insurance commissions") based on certain criteria established by the insurance carriers. Upon adoption of the amended ASU, contingent insurance commissions are accrued based upon management's expectations. Previously, contingent insurance commissions were recognized when the funds were received.