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Commitments (Details Textual) - Third party interest rate swap
$ in Millions
Sep. 30, 2019
USD ($)
Security
Commitments (Textual) [Abstract]  
Securities pledged for collateral | $ $ 2.9
U.S. Government-sponsored mortgage-backed securities  
Commitments (Textual) [Abstract]  
Number of securities owned and pledged as collateral | Security 2