Fair Value of Assets and Liabilities - Schedule Of Estimated Fair Values (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Duration of purchased receivables	1 year
Derivative contracts	$ 2,946	$ 1,639
Purchased receivables, net	13,596	13,326
Mortgage servicing rights	2,602	1,654
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Commitments to extend credit	219,325	222,387
Standby letters of credit	8,256	6,399
Estimate of Fair Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Commitments to extend credit	2,193	2,224
Standby letters of credit	83	64
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	74,756	58,673
Investment securities	71,121	43,033
Level 1 inputs: | Estimate of Fair Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash, due from banks and deposits in other banks	74,756	58,673
Investment securities	71,121	43,033
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	220,381	248,983
Investment in Federal Home Loan Bank stock	1,966	1,816
Accrued interest receivable	3,558	3,620
Deposits	1,255,688	1,240,792
Securities sold under repurchase agreements	26,049	31,420
Borrowings	4,362	2,120
Accrued interest payable	126	56
Level 2 inputs: | Estimate of Fair Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities	220,425	249,039
Investment in Federal Home Loan Bank stock	1,966	1,816
Accrued interest receivable	3,558	3,620
Deposits	1,255,709	1,240,223
Securities sold under repurchase agreements	26,049	31,420
Borrowings	4,204	2,101
Accrued interest payable	126	56
Level 3 inputs:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage servicing rights	2,602	1,654
Level 3 inputs: | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans and loans held for sale	1,027,706	1,031,340
Purchased receivables, net	13,596	13,326
Mortgage servicing rights	2,602	1,654
RML earn-out liability	7,483	6,624
Junior subordinated debentures	18,558	18,558
Level 3 inputs: | Estimate of Fair Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans and loans held for sale	1,029,593	1,033,551
Purchased receivables, net	13,596	13,326
Mortgage servicing rights	2,602	1,654
RML earn-out liability	7,483	6,624
Junior subordinated debentures	19,691	17,433
Interest rate contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative contracts	366	125
Interest rate contracts	950	216
Interest rate contracts | Level 1 inputs:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative contracts	0	0
Interest rate contracts | Level 2 inputs:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative contracts	366	125
Interest rate contracts | Level 2 inputs: | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative contracts	366	125
Interest rate contracts	950	216
Interest rate contracts | Level 2 inputs: | Estimate of Fair Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative contracts	366	125
Interest rate contracts	950	216
Interest rate contracts | Level 3 inputs:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative contracts	0	0
Interest rate lock commitments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative contracts	2,580	1,514
Interest rate contracts	950	216
Interest rate lock commitments | Level 1 inputs:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative contracts	0	0
Interest rate contracts	0	0
Interest rate lock commitments | Level 2 inputs:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative contracts	0	0
Interest rate contracts	950	216
Interest rate lock commitments | Level 3 inputs:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative contracts	2,580	1,514
Interest rate contracts	0	0
Interest rate lock commitments | Level 3 inputs: | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative contracts	2,580	1,514
Interest rate lock commitments | Level 3 inputs: | Estimate of Fair Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative contracts	$ 2,580	$ 1,514