Long-Term Borrowings (Details Textual) $ in Millions	12 Months Ended
Dec. 31, 2020 USD ($) Entity	Dec. 31, 2019 USD ($)
Debt Instrument [Line Items]
Residential mortgage, commercial real estate, and multi-family loans	$ 616.4	$ 577.9
Additional borrowing limit	$ 549.5
Number of special purpose entities \| Entity	2
Long-term investments	$ 9.4	$ 2.3
Debt interest rate payment description	The debt has a floating rate that is determined quarterly based on the three-month LIBOR
Debenture maturity date	Dec. 31, 2036
Trust Preferred Debenture \| Special Purpose Entity One
Debt Instrument [Line Items]
Long-term investments	$ 7.0
Interest rate	2.02%
Trust Preferred Debenture \| Special Purpose Entity Two
Debt Instrument [Line Items]
Long-term investments	$ 2.4
Interest rate	1.92%

Additional federal home loan bank advances to be borrow under collateral pledge.

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-Publisher FASB
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Amount of the collateral pledged in support of federal home loan bank advances outstanding.

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The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time.

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