Fair Value Disclosures, Significant Assumptions (Details) - USD ($) $ in Thousands		Sep. 30, 2018	Dec. 31, 2017
Assets [Abstract]
Equity securities at fair value		$ 285	$ 0
Trading securities		0	455
Securities available for sale		436,957	522,925
Loans held for sale		41,325	39,436
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets [Abstract]
Equity securities at fair value		285
Trading securities			455
Securities available for sale		0	898
Derivatives		0	0
Liabilities [Abstract]
Derivatives		0	0
Significant Other Observable Inputs (Level 2) [Member]
Assets [Abstract]
Equity securities at fair value		0
Trading securities			0
Securities available for sale		436,957	522,027
Derivatives		7,734	3,080
Liabilities [Abstract]
Derivatives		2,696	1,292
Significant Un-observable Inputs (Level 3) [Member]
Assets [Abstract]
Equity securities at fair value		0
Trading securities			0
Securities available for sale		0	0
Derivatives		0	0
Liabilities [Abstract]
Derivatives		0	0
Fair Value, Measurements, Recurring [Member]
Assets [Abstract]
Equity securities at fair value		285
Trading securities			455
Loans held for sale		41,325	39,436
Capitalized mortgage loan servicing rights		23,151	15,699
Derivatives	[1]	7,734	3,080
Liabilities [Abstract]
Derivatives	[2]	2,696	1,292
Fair Value, Measurements, Recurring [Member] | U.S. Treasury [Member]
Assets [Abstract]
Securities available for sale			898
Fair Value, Measurements, Recurring [Member] | U.S. Agency [Member]
Assets [Abstract]
Securities available for sale		20,423	25,682
Fair Value, Measurements, Recurring [Member] | U.S. Agency Residential Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		125,061	137,918
Fair Value, Measurements, Recurring [Member] | U.S. Agency Commercial Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		5,815	9,760
Fair Value, Measurements, Recurring [Member] | Private Label Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		28,973	29,109
Fair Value, Measurements, Recurring [Member] | Other Asset Backed [Member]
Assets [Abstract]
Securities available for sale		78,526	93,898
Fair Value, Measurements, Recurring [Member] | Obligations of States and Political Subdivisions [Member]
Assets [Abstract]
Securities available for sale		139,654	172,945
Fair Value, Measurements, Recurring [Member] | Corporate [Member]
Assets [Abstract]
Securities available for sale		34,570	47,853
Fair Value, Measurements, Recurring [Member] | Trust Preferred [Member]
Assets [Abstract]
Securities available for sale		1,925	2,802
Fair Value, Measurements, Recurring [Member] | Foreign Government [Member]
Assets [Abstract]
Securities available for sale		2,010	2,060
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets [Abstract]
Equity securities at fair value		285
Trading securities			455
Loans held for sale		0	0
Capitalized mortgage loan servicing rights		0	0
Derivatives	[1]	0	0
Liabilities [Abstract]
Derivatives	[2]	0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. Treasury [Member]
Assets [Abstract]
Securities available for sale			898
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. Agency [Member]
Assets [Abstract]
Securities available for sale		0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. Agency Residential Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. Agency Commercial Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Private Label Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Other Asset Backed [Member]
Assets [Abstract]
Securities available for sale		0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Obligations of States and Political Subdivisions [Member]
Assets [Abstract]
Securities available for sale		0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Corporate [Member]
Assets [Abstract]
Securities available for sale		0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Trust Preferred [Member]
Assets [Abstract]
Securities available for sale		0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Foreign Government [Member]
Assets [Abstract]
Securities available for sale		0	0
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets [Abstract]
Equity securities at fair value		0
Trading securities			0
Loans held for sale		41,325	39,436
Capitalized mortgage loan servicing rights		0	0
Derivatives	[1]	7,734	3,080
Liabilities [Abstract]
Derivatives	[2]	2,696	1,292
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. Treasury [Member]
Assets [Abstract]
Securities available for sale			0
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. Agency [Member]
Assets [Abstract]
Securities available for sale		20,423	25,682
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. Agency Residential Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		125,061	137,918
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. Agency Commercial Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		5,815	9,760
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Private Label Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		28,973	29,109
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Other Asset Backed [Member]
Assets [Abstract]
Securities available for sale		78,526	93,898
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Obligations of States and Political Subdivisions [Member]
Assets [Abstract]
Securities available for sale		139,654	172,945
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Corporate [Member]
Assets [Abstract]
Securities available for sale		34,570	47,853
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Trust Preferred [Member]
Assets [Abstract]
Securities available for sale		1,925	2,802
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Foreign Government [Member]
Assets [Abstract]
Securities available for sale		2,010	2,060
Fair Value, Measurements, Recurring [Member] | Significant Un-observable Inputs (Level 3) [Member]
Assets [Abstract]
Equity securities at fair value		0
Trading securities			0
Loans held for sale		0	0
Capitalized mortgage loan servicing rights		23,151	15,699
Derivatives	[1]	0	0
Liabilities [Abstract]
Derivatives	[2]	0	0
Fair Value, Measurements, Recurring [Member] | Significant Un-observable Inputs (Level 3) [Member] | U.S. Treasury [Member]
Assets [Abstract]
Securities available for sale			0
Fair Value, Measurements, Recurring [Member] | Significant Un-observable Inputs (Level 3) [Member] | U.S. Agency [Member]
Assets [Abstract]
Securities available for sale		0	0
Fair Value, Measurements, Recurring [Member] | Significant Un-observable Inputs (Level 3) [Member] | U.S. Agency Residential Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		0	0
Fair Value, Measurements, Recurring [Member] | Significant Un-observable Inputs (Level 3) [Member] | U.S. Agency Commercial Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		0	0
Fair Value, Measurements, Recurring [Member] | Significant Un-observable Inputs (Level 3) [Member] | Private Label Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		0	0
Fair Value, Measurements, Recurring [Member] | Significant Un-observable Inputs (Level 3) [Member] | Other Asset Backed [Member]
Assets [Abstract]
Securities available for sale		0	0
Fair Value, Measurements, Recurring [Member] | Significant Un-observable Inputs (Level 3) [Member] | Obligations of States and Political Subdivisions [Member]
Assets [Abstract]
Securities available for sale		0	0
Fair Value, Measurements, Recurring [Member] | Significant Un-observable Inputs (Level 3) [Member] | Corporate [Member]
Assets [Abstract]
Securities available for sale		0	0
Fair Value, Measurements, Recurring [Member] | Significant Un-observable Inputs (Level 3) [Member] | Trust Preferred [Member]
Assets [Abstract]
Securities available for sale		0	0
Fair Value, Measurements, Recurring [Member] | Significant Un-observable Inputs (Level 3) [Member] | Foreign Government [Member]
Assets [Abstract]
Securities available for sale		0	0
Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member]
Commercial [Abstract]
Income producing - real estate	[3]	225	274
Land, land development & construction - real estate	[3]		9
Commercial and industrial	[3]	944	1,051
Mortgage [Abstract]
1-4 Family	[3]	334	339
Resort Lending	[3]	264	207
Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate [Member]
Mortgage [Abstract]
1-4 Family	[4]	94	186
Resort Lending	[4]	1	65
Fair Value, Measurements, Nonrecurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Impaired Loans [Member]
Commercial [Abstract]
Income producing - real estate	[3]	0	0
Land, land development & construction - real estate	[3]		0
Commercial and industrial	[3]	0	0
Mortgage [Abstract]
1-4 Family	[3]	0	0
Resort Lending	[3]	0	0
Fair Value, Measurements, Nonrecurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Other Real Estate [Member]
Mortgage [Abstract]
1-4 Family	[4]	0	0
Resort Lending	[4]	0	0
Fair Value, Measurements, Nonrecurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Impaired Loans [Member]
Commercial [Abstract]
Income producing - real estate	[3]	0	0
Land, land development & construction - real estate	[3]		0
Commercial and industrial	[3]	0	0
Mortgage [Abstract]
1-4 Family	[3]	0	0
Resort Lending	[3]	0	0
Fair Value, Measurements, Nonrecurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Other Real Estate [Member]
Mortgage [Abstract]
1-4 Family	[4]	0	0
Resort Lending	[4]	0	0
Fair Value, Measurements, Nonrecurring [Member] | Significant Un-observable Inputs (Level 3) [Member] | Impaired Loans [Member]
Commercial [Abstract]
Income producing - real estate	[3]	225	274
Land, land development & construction - real estate	[3]		9
Commercial and industrial	[3]	944	1,051
Mortgage [Abstract]
1-4 Family	[3]	334	339
Resort Lending	[3]	264	207
Fair Value, Measurements, Nonrecurring [Member] | Significant Un-observable Inputs (Level 3) [Member] | Other Real Estate [Member]
Mortgage [Abstract]
1-4 Family	[4]	94	186
Resort Lending	[4]	$ 1	$ 65

[1] Included in accrued income and other assets.

[2] Included in accrued expenses and other liabilities.

[3] Only includes impaired loans with specific loss allocations based on collateral value.

[4] Only includes other real estate with subsequent write downs to fair value.