XML 35 R25.htm IDEA: XBRL DOCUMENT v3.21.2
Investment securities (Details 2) - USD ($)
Sep. 30, 2021
Dec. 31, 2020
Amortized Cost    
Due within one year $ 11,591,000  
Due from one to five years 10,143,000  
Due from five to ten years 136,387,000  
Due after ten years 17,959,000  
Mortgage-backed securities 222,526,000  
Total 398,606,000  
Estimated Fair Value    
Due within one year 11,689,000  
Due from one to five years 10,763,000  
Due from five to ten years 139,315,000  
Due after ten years 17,833,000  
Mortgage-backed securities 223,305,000  
Total $ 406,630,000 $ 249,404,000