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Credit Quality Indicators (Details Textual) - USD ($)
Mar. 31, 2019
Dec. 31, 2018
Financing Receivable Recorded Investment [Line Items]    
Maximum commercial loan and commercial real estate relationships $ 750,000  
Residential real estate, 1-4 family residential    
Financing Receivable Recorded Investment [Line Items]    
Other real estate owned properties 208,000 $ 0
Other real estate properties in foreclosure $ 1,000,000 $ 1,200,000