Quarterly report pursuant to Section 13 or 15(d)

Underlying Assets of Federal Home Loan Bank Advances (Details)

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Underlying Assets of Federal Home Loan Bank Advances (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Schedule of Assets Underlying Federal Home Loan Bank Advances [Line Items]    
Assets pledged as collateral for Federal Home Loan Bank advances $ 55,419 $ 226,508
Federal Home Loan Bank of Des Moines [Member]    
Schedule of Assets Underlying Federal Home Loan Bank Advances [Line Items]    
Federal Home Loan Bank stock 12,000 12,500
Available-for-sale Securities [Member]    
Schedule of Assets Underlying Federal Home Loan Bank Advances [Line Items]    
Assets pledged as collateral for Federal Home Loan Bank advances 52,219 226,508
Restricted Cash and Cash Equivalents [Member]    
Schedule of Assets Underlying Federal Home Loan Bank Advances [Line Items]    
Assets pledged as collateral for Federal Home Loan Bank advances $ 3,200 $ 0