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Fair Value Financial Instruments (Details) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Carrying (Reported) Amount, Fair Value Disclosure [Member]    
Fair Value, Financial Assets: [Abstract]    
Fair Value, Financial Instruments, Loans, Net $ 439,072 $ 448,894
Fair Value, Financial Instruments, Loans Held For Sale 917 1,922
Fair Value, Financial Liabilities: [Abstract]    
Fair Value, Financial Instruments, Time Deposits 186,142 188,071
Fair Value, Financial Instruments, Long-term Debt 3,217 3,217
Estimate of Fair Value, Fair Value Disclosure [Member]    
Fair Value, Financial Assets: [Abstract]    
Fair Value, Financial Instruments, Loans, Net 437,248 447,468
Fair Value, Financial Instruments, Loans Held For Sale 0 1,950
Fair Value, Financial Liabilities: [Abstract]    
Fair Value, Financial Instruments, Time Deposits 187,423 185,564
Fair Value, Financial Instruments, Long-term Debt 3,217 3,217
Estimate of Fair Value, Fair Value Disclosure [Member] | Fair Value, Inputs, Level 1 [Member]    
Fair Value, Financial Assets: [Abstract]    
Fair Value, Financial Instruments, Loans, Net 0 0
Fair Value, Financial Instruments, Loans Held For Sale 0 0
Fair Value, Financial Liabilities: [Abstract]    
Fair Value, Financial Instruments, Time Deposits 0 0
Fair Value, Financial Instruments, Long-term Debt 0 0
Estimate of Fair Value, Fair Value Disclosure [Member] | Fair Value, Inputs, Level 2 [Member]    
Fair Value, Financial Assets: [Abstract]    
Fair Value, Financial Instruments, Loans, Net 0 0
Fair Value, Financial Instruments, Loans Held For Sale 0 1,950
Fair Value, Financial Liabilities: [Abstract]    
Fair Value, Financial Instruments, Time Deposits 187,423 185,564
Fair Value, Financial Instruments, Long-term Debt 3,217 3,217
Estimate of Fair Value, Fair Value Disclosure [Member] | Fair Value, Inputs, Level 3 [Member]    
Fair Value, Financial Assets: [Abstract]    
Fair Value, Financial Instruments, Loans, Net 437,248 447,468
Fair Value, Financial Instruments, Loans Held For Sale 0 0
Fair Value, Financial Liabilities: [Abstract]    
Fair Value, Financial Instruments, Time Deposits 0 0
Fair Value, Financial Instruments, Long-term Debt $ 0 $ 0