Borrowings - Narrative (Details) - USD ($) $ in Thousands	6 Months Ended
Borrowings - Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Debt Instrument [Line Items]
Long-term debt	$ 89,152	$ 89,061
Total subordinated debentures
Debt Instrument [Line Items]
Long-term debt, gross	60,000	60,000
Total subordinated debentures \| Severn Bancorp, Inc.
Debt Instrument [Line Items]
Long-term debt	19,100
Unamortized fair value adjustment	1,600
Total subordinated debentures \| Subordinated Debentures due November 2035
Debt Instrument [Line Items]
Long-term debt, gross	60,000	60,000
Long-term debt	$ 58,800
Percentage of subordinated debt considered as Tier 2 capital	100.00%
Total subordinated debentures \| Tri-County Capital Trust I
Debt Instrument [Line Items]
Long-term debt	$ 6,700
Unamortized fair value adjustment	474
Total subordinated debentures \| Tri-County Capital Trust II
Debt Instrument [Line Items]
Long-term debt	4,500
Unamortized fair value adjustment	626
Total trust preferred securities
Debt Instrument [Line Items]
Long-term debt, gross	32,991	32,991
Total trust preferred securities \| Severn Capital Trust I
Debt Instrument [Line Items]
Long-term debt, gross	20,619	20,619
Total trust preferred securities \| Tri-County Capital Trust I
Debt Instrument [Line Items]
Long-term debt, gross	7,217	7,217
Total trust preferred securities \| Tri-County Capital Trust II
Debt Instrument [Line Items]
Long-term debt, gross	5,155	5,155
FHLB
Debt Instrument [Line Items]
Long-term debt, gross	0	0
Short-term borrowings	$ 0	$ 0