Other Borrowings - Summary of Terms of Outstanding Junior Subordinated Debentures (Detail) - Trust Preferred Securities - Junior Subordinated Debentures	9 Months Ended
	Sep. 30, 2020 USD ($)
Debt Instrument [Line Items]
Issuance Amount	$ 42,000,000
St. Joseph Capital Trust II
Debt Instrument [Line Items]
Issuance Amount	$ 5,000,000
Rate	2.00%
St. Joseph Capital Trust II | LIBOR
Debt Instrument [Line Items]
Variable rate	1.75%
Anchor Capital Trust III
Debt Instrument [Line Items]
Issuance Amount	$ 5,000,000
Rate	1.77%
Anchor Capital Trust III | LIBOR
Debt Instrument [Line Items]
Variable rate	1.55%
Home Federal Statutory    Trust I
Debt Instrument [Line Items]
Issuance Amount	$ 15,000,000
Rate	1.90%
Home Federal Statutory    Trust I | LIBOR
Debt Instrument [Line Items]
Variable rate	1.65%
Monroe Bancorp Capital    Trust I
Debt Instrument [Line Items]
Issuance Amount	$ 3,000,000
Rate	1.88%
Monroe Bancorp Capital    Trust I | LIBOR
Debt Instrument [Line Items]
Variable rate	1.60%
Tower Capital Trust 3
Debt Instrument [Line Items]
Issuance Amount	$ 9,000,000
Rate	1.93%
Tower Capital Trust 3 | LIBOR
Debt Instrument [Line Items]
Variable rate	1.69%
Monroe Bancorp Statutory    Trust II
Debt Instrument [Line Items]
Issuance Amount	$ 5,000,000
Rate	1.85%
Monroe Bancorp Statutory    Trust II | LIBOR
Debt Instrument [Line Items]
Variable rate	1.60%