Loans (Past Due TLMs) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Modified [Line Items]
TLM, carrying value	$ 668
30-59
Financing Receivable, Modified [Line Items]
TLM, carrying value	0	$ 0
60-89
Financing Receivable, Modified [Line Items]
TLM, carrying value	0	0
Over 90
Financing Receivable, Modified [Line Items]
TLM, carrying value	0	0
Financial Asset, Not Past Due
Financing Receivable, Modified [Line Items]
TLM, carrying value	22,360	21,830
Financial Asset, Past Due
Financing Receivable, Modified [Line Items]
TLM, carrying value	0	0
Total
Financing Receivable, Modified [Line Items]
TLM, carrying value	22,360	21,830
Commercial Real Estate
Financing Receivable, Modified [Line Items]
TLM, carrying value	0
Commercial Real Estate | 30-59
Financing Receivable, Modified [Line Items]
TLM, carrying value	0	0
Commercial Real Estate | 60-89
Financing Receivable, Modified [Line Items]
TLM, carrying value	0	0
Commercial Real Estate | Over 90
Financing Receivable, Modified [Line Items]
TLM, carrying value	0	0
Commercial Real Estate | Financial Asset, Not Past Due
Financing Receivable, Modified [Line Items]
TLM, carrying value	21,692	21,830
Commercial Real Estate | Financial Asset, Past Due
Financing Receivable, Modified [Line Items]
TLM, carrying value	0	0
Commercial Real Estate | Total
Financing Receivable, Modified [Line Items]
TLM, carrying value	21,692	21,830
Commercial & Industrial
Financing Receivable, Modified [Line Items]
TLM, carrying value	668
Commercial & Industrial | 30-59
Financing Receivable, Modified [Line Items]
TLM, carrying value	0	0
Commercial & Industrial | 60-89
Financing Receivable, Modified [Line Items]
TLM, carrying value	0	0
Commercial & Industrial | Over 90
Financing Receivable, Modified [Line Items]
TLM, carrying value	0	0
Commercial & Industrial | Financial Asset, Not Past Due
Financing Receivable, Modified [Line Items]
TLM, carrying value	668	0
Commercial & Industrial | Financial Asset, Past Due
Financing Receivable, Modified [Line Items]
TLM, carrying value	0	0
Commercial & Industrial | Total
Financing Receivable, Modified [Line Items]
TLM, carrying value	668	0
Total Commercial
Financing Receivable, Modified [Line Items]
TLM, carrying value	668
Total Commercial | 30-59
Financing Receivable, Modified [Line Items]
TLM, carrying value	0	0
Total Commercial | 60-89
Financing Receivable, Modified [Line Items]
TLM, carrying value	0	0
Total Commercial | Over 90
Financing Receivable, Modified [Line Items]
TLM, carrying value	0	0
Total Commercial | Financial Asset, Not Past Due
Financing Receivable, Modified [Line Items]
TLM, carrying value	22,360	21,830
Total Commercial | Financial Asset, Past Due
Financing Receivable, Modified [Line Items]
TLM, carrying value	0	0
Total Commercial | Total
Financing Receivable, Modified [Line Items]
TLM, carrying value	$ 22,360	$ 21,830