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Investment Securities - Amortized cost of held to maturity debt securities (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities - HTM, Carrying Value $ 61,832 $ 61,878
AAA/AA/A    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities - HTM, Carrying Value 60,439  
Unrated    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities - HTM, Carrying Value 1,393  
U.S. Agency    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities - HTM, Carrying Value 2,500 2,500
U.S. Agency | AAA/AA/A    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities - HTM, Carrying Value 2,500  
U.S. Agency mortgage-backed securities    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities - HTM, Carrying Value 19,957 18,877
U.S. Agency mortgage-backed securities | AAA/AA/A    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities - HTM, Carrying Value 19,957  
Municipal    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities - HTM, Carrying Value 33,975 33,993
Municipal | AAA/AA/A    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities - HTM, Carrying Value 33,975  
Corporate bonds and other securities    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities - HTM, Carrying Value 5,400 $ 6,508
Corporate bonds and other securities | AAA/AA/A    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities - HTM, Carrying Value 4,007  
Corporate bonds and other securities | Unrated    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities - HTM, Carrying Value $ 1,393