Loans Receivable - TDR Loans, Recorded Investment and Allowance (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($) contract	Dec. 31, 2019 USD ($)
Receivables [Abstract]
Financing Receivable, Modifications, Number of Contracts | contract	11
Performing TDRs, TDR loans	$ 19,309	$ 14,469
Nonaccrual TDRs, TDR loans	19,980	26,338
Performing TDRs, Allowance for loan losses on TDR loans		1,259
Nonaccrual TDRs, Allowance for loan losses on TDR loans		218
Allowance for Loan Credit Losses on Financing Receivable Modifications Accruing Recorded Investment	1,519
Allowance for Loan Credit Losses on Financing Receivable Modifications Non Accruing Recorded Investment	223
Unfunded commitments related to credits classified as TDRs	$ 3,000	$ 736