Fair Value Measurement - Schedule of Assets Measured on Nonrecurring Basis (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Fair Value Measurements Nonrecurring [Member] | Residential Real Estate [Member]
Cumulative Fair value losses	$ 126	$ 126
Losses recorded in operations during the period
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] | Fair Value Measurements Nonrecurring [Member] | Residential Real Estate [Member]
Loans receivable, Fair Value
Significant Other Observable Inputs (Level 2) [Member] | Fair Value Measurements Nonrecurring [Member] | Residential Real Estate [Member]
Loans receivable, Fair Value
Significant Unobservable Inputs (Level 3) [Member]
Loans receivable, Fair Value	69,155	76,829
Significant Unobservable Inputs (Level 3) [Member] | Fair Value Measurements Nonrecurring [Member] | Residential Real Estate [Member]
Loans receivable, Fair Value	371	375
Fair Value [Member] | Fair Value Measurements Nonrecurring [Member] | Residential Real Estate [Member]
Loans receivable, Fair Value	$ 371	$ 375