Fair Value (Details 2) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Fair Value, Inputs, Level 3 [Member] | Servicing Asset [Member]
Balance at beginning of years	$ 313	$ 319
Additions related to new loan origination	17	33
Change in fair value	(24)	(34)
Balance at end of year	306	318
Loans Held At Fair Value [Member]
Change in fair value	(100)	45
Balance at end of year	5,394	4,849
Balance at beginning of year	5,420	4,451
Origination of loans	142	398
Principal repayments	$ (69)	$ (45)