XML 51 R41.htm IDEA: XBRL DOCUMENT v3.19.1
Investment securities available for sale (Details Textual) - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]      
Proceeds from Sale of Debt Securities, Available-for-sale $ 6,500,000    
Available-for-sale Securities, Gross Realized Gain (Loss) 101,000 $ 0  
Investment Pledged As Security For Debt [Member]      
Debt Securities, Available-for-sale [Line Items]      
Pledged Financial Instruments, Not Separately Reported, Securities for Federal Home Loan Bank $ 8,065,000   $ 8,004,000