Borrowings (Narrative) (Details) - USD ($)	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022
Debt Instrument [Line Items]
Recorded balance of subordinated debt	$ 72,035,000		$ 43,072,000
Advances from FHLB - short-term	0	$ 40,000,000
Subordinated Debt
Debt Instrument [Line Items]
Long-term debt, gross	44,500,000		25,000,000
Subordinated Debt | Severn Bancorp, Inc.
Debt Instrument [Line Items]
Recorded balance of subordinated debt	18,500,000
Unamortized fair value adjustment	2,100,000
Trust Preferred Securities
Debt Instrument [Line Items]
Long-term debt, gross	32,619,000		20,619,000
September 2030 Subordinated Debentures | Subordinated Debt
Debt Instrument [Line Items]
Long-term debt, gross	25,000,000		25,000,000
Recorded balance of subordinated debt	24,800,000
October 2030 Subordinated Debentures | Subordinated Debt
Debt Instrument [Line Items]
Long-term debt, gross	19,500,000		0
Recorded balance of subordinated debt	18,200,000
Severn Capital Trust I | Trust Preferred Securities
Debt Instrument [Line Items]
Long-term debt, gross	20,619,000		20,619,000
Tri-County Capital Trust I | Subordinated Debt
Debt Instrument [Line Items]
Recorded balance of subordinated debt	6,400,000
Unamortized fair value adjustment	600,000
Tri-County Capital Trust I | Trust Preferred Securities
Debt Instrument [Line Items]
Long-term debt, gross	7,000,000		0
Tri-County Capital Trust II | Subordinated Debt
Debt Instrument [Line Items]
Recorded balance of subordinated debt	4,200,000
Unamortized fair value adjustment	800,000
Tri-County Capital Trust II | Trust Preferred Securities
Debt Instrument [Line Items]
Long-term debt, gross	$ 5,000,000		$ 0