v3.19.1
Investment Securities - Amortized cost to Estimated Fair Value (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost $ 47,757,000 $ 54,377,000
Unrealized Gains 74,000 247,000
Unrealized Losses (899,000) (595,000)
Fair Value 46,932,000 54,029,000
Proceeds from sale of securities available for sale 345,000 0
Debt securities, available-for-sale, realized gain 2,000  
U.S. government-sponsored enterprises    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 17,496,000 17,489,000
Unrealized Gains 0 1,000
Unrealized Losses (136,000) (120,000)
Fair Value 17,360,000 17,370,000
Municipal    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 517,000 518,000
Unrealized Gains 0 0
Unrealized Losses (16,000) (3,000)
Fair Value 501,000 515,000
Corporate    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 2,908,000 3,060,000
Unrealized Gains 28,000 67,000
Unrealized Losses (51,000) (50,000)
Fair Value 2,885,000 3,077,000
Mortgage-backed securities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 26,836,000 33,310,000
Unrealized Gains 46,000 179,000
Unrealized Losses (696,000) (422,000)
Fair Value $ 26,186,000 $ 33,067,000