Borrowings (Details 1) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Securities sold under agreement to repurchase
Amounts outstanding at year-end	$ 3,513	$ 5,741
Gross amount of recognized liabilities for repurchase agreements	3,513	5,741
Collateralized Mortgage Backed Securities [Member]
Securities sold under agreement to repurchase
Amounts outstanding at year-end		1,542
Mortgage Backed Securities, Other [Member]
Securities sold under agreement to repurchase
Amounts outstanding at year-end	3,513	4,199
Maturity Overnight [Member]
Securities sold under agreement to repurchase
Amounts outstanding at year-end	3,513	5,741
Maturity Overnight [Member] | Collateralized Mortgage Backed Securities [Member]
Securities sold under agreement to repurchase
Amounts outstanding at year-end		1,542
Maturity Overnight [Member] | Mortgage Backed Securities, Other [Member]
Securities sold under agreement to repurchase
Amounts outstanding at year-end	3,513	4,199
Maturity Less than 30 Days [Member]
Securities sold under agreement to repurchase
Amounts outstanding at year-end	0	0
Maturity Less than 30 Days [Member] | Collateralized Mortgage Backed Securities [Member]
Securities sold under agreement to repurchase
Amounts outstanding at year-end		0
Maturity Less than 30 Days [Member] | Mortgage Backed Securities, Other [Member]
Securities sold under agreement to repurchase
Amounts outstanding at year-end	0	0
Maturity 30 to 90 Days [Member]
Securities sold under agreement to repurchase
Amounts outstanding at year-end	0	0
Maturity 30 to 90 Days [Member] | Collateralized Mortgage Backed Securities [Member]
Securities sold under agreement to repurchase
Amounts outstanding at year-end		0
Maturity 30 to 90 Days [Member] | Mortgage Backed Securities, Other [Member]
Securities sold under agreement to repurchase
Amounts outstanding at year-end	0	0
Maturity Greater than 90 Days [Member]
Securities sold under agreement to repurchase
Amounts outstanding at year-end	0	0
Maturity Greater than 90 Days [Member] | Collateralized Mortgage Backed Securities [Member]
Securities sold under agreement to repurchase
Amounts outstanding at year-end		0
Maturity Greater than 90 Days [Member] | Mortgage Backed Securities, Other [Member]
Securities sold under agreement to repurchase
Amounts outstanding at year-end	$ 0	$ 0