Fair Value Measurements - Schedule Of Estimated Fair Values (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative asset	$ 1,639	$ 919
Purchased receivables, net	13,326	15,254
Mortgage servicing rights	1,654	1,010
Derivative liability	216	158
Commitments to extend credit	222,387	219,349
Standby letters of credit	6,399	6,004
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Commitments to extend credit	222,387	219,349
Standby letters of credit	6,399	6,004
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Commitments to extend credit	2,224	2,193
Standby letters of credit	64	60
Level 1 inputs:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage servicing rights	0	0
Level 1 inputs: | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash, due from banks and deposits in other banks	58,673	72,056
Investment securities	43,033	45,570
Level 1 inputs: | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash, due from banks and deposits in other banks	58,673	72,056
Investment securities	43,033	45,570
Level 2 inputs:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage servicing rights	0	0
Level 2 inputs: | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities	248,983	238,361
Investment in Federal Home Loan Bank Stock	1,816	3,404
Accrued interest receivable	3,620	3,373
Deposits	1,240,792	1,179,747
Securities sold under repurchase agreements	31,420	19,843
Borrowings	2,120	26,304
Accrued interest payable	56	18
Level 2 inputs: | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities	249,039	241,872
Investment in Federal Home Loan Bank Stock	1,816	3,404
Accrued interest receivable	3,620	3,373
Deposits	1,240,223	1,180,136
Securities sold under repurchase agreements	31,420	19,843
Borrowings	2,101	26,485
Accrued interest payable	56	18
Level 3 inputs:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage servicing rights	1,654	1,010
Level 3 inputs: | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans and loans held for sale	1,031,340	968,370
Purchased receivables, net	13,326	15,254
Mortgage servicing rights	1,654	1,010
Junior subordinated debentures	18,558	18,558
Level 3 inputs: | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans and loans held for sale	1,033,551	974,366
Purchased receivables, net	13,326	15,254
Mortgage servicing rights	1,654	1,010
Junior subordinated debentures	17,433	17,239
Interest rate contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative asset	125	78
Derivative liability	216	158
Interest rate contracts | Level 1 inputs:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative asset	0	0
Derivative liability		0
Interest rate contracts | Level 2 inputs:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative asset	125	78
Derivative liability		158
Interest rate contracts | Level 2 inputs: | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative asset	125	78
Derivative liability	216	158
Interest rate contracts | Level 2 inputs: | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative asset	125	78
Derivative liability	216	158
Interest rate contracts | Level 3 inputs:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative asset	0	0
Derivative liability		0
Interest rate lock commitments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative asset	1,514	841
Derivative liability	216
Interest rate lock commitments | Level 1 inputs:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative asset	0	0
Derivative liability	0
Interest rate lock commitments | Level 2 inputs:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative asset	0	0
Derivative liability	216
Interest rate lock commitments | Level 3 inputs:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative asset	1,514	841
Derivative liability	0
Interest rate lock commitments | Level 3 inputs: | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative asset	1,514	841
Interest rate lock commitments | Level 3 inputs: | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative asset	$ 1,514	$ 841