Derivatives and Hedging Activities - Schedule of Fair Value of Derivative Financial Instruments as well as their Classification on Balance Sheet (Detail)	Jun. 30, 2020 USD ($)
Derivatives Fair Value [Line Items]
Total derivative assets	$ 1,085,000
Total derivative liabilities	1,183,000
Not Designated as Hedging Instrument | Interest Rate Products
Derivatives Fair Value [Line Items]
Notional Amount	29,492,000
Total derivative assets	1,085,000
Total derivative liabilities	$ 1,183,000