Loans, Troubled Debt Restructurings (Details) (USD $)	3 Months Ended			9 Months Ended
	Sep. 30, 2013 Contract		Sep. 30, 2012 Contract	Sep. 30, 2013 Contract		Sep. 30, 2012 Contract	Dec. 31, 2012
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring	$ 129,897,000			$ 129,897,000			$ 143,663,000
Troubled debt restructuring, specific reserve	15,900,000			15,900,000			19,500,000
Loans classified as troubled debt restructurings [Abstract]
Number of contracts	13		41	78		196
Pre-modification recorded balance	1,745,000		5,380,000	10,174,000		37,814,000
Post-modification recorded balance	1,715,000		5,019,000	9,320,000		36,700,000
Increase in allowance for loan losses	30,000		400,000	(200,000)		1,500,000
Charge offs due to troubled debt restructurings	0		0	500,000		400,000
TDR that subsequently defaulted [Abstract]
Number of contracts	2		4	5		17
Recorded Balance	32,000		1,295,000	316,000		2,261,000
Past due period for modified loans	90 days
Increase (decrease) in allowance for loan loss due to TDRs that subsequently defaulted	0		700,000	(100,000)		700,000
Charge-offs on TDRs that subsequently defaulted	0		0	200,000		400,000
Minimum [Member]
Financing Receivable, Modifications [Line Items]
Modification of stated interest rate of loans, range of period (in months)				9 months
Modifications involving extension of maturity date, period range (in months)				1 month
Maximum [Member]
Financing Receivable, Modifications [Line Items]
Modification of stated interest rate of loans, range of period (in months)				60 months
Modifications involving extension of maturity date, period range (in months)				60 months
Maximum in Certain Circumstances [Member]
Financing Receivable, Modifications [Line Items]
Modification of stated interest rate of loans, range of period (in months)				480 months
Modifications involving extension of maturity date, period range (in months)				193 months
Commercial [Member] | Income Producing - Real Estate [Member]
Loans classified as troubled debt restructurings [Abstract]
Number of contracts	0		4	5		18
Pre-modification recorded balance	0		626,000	4,478,000		8,894,000
Post-modification recorded balance	0		545,000	3,869,000		8,736,000
TDR that subsequently defaulted [Abstract]
Number of contracts	0		2	0		2
Recorded Balance	0		827,000	0		827,000
Commercial [Member] | Land, Land Development and Construction Real Estate [Member]
Loans classified as troubled debt restructurings [Abstract]
Number of contracts	0		2	1		5
Pre-modification recorded balance	0		460,000	16,000		3,347,000
Post-modification recorded balance	0		523,000	0		3,436,000
TDR that subsequently defaulted [Abstract]
Number of contracts	0		0	0		1
Recorded Balance	0		0	0		136,000
Commercial [Member] | Commercial and Industrial [Member]
Loans classified as troubled debt restructurings [Abstract]
Number of contracts	4		10	19		43
Pre-modification recorded balance	1,141,000		631,000	2,053,000		8,827,000
Post-modification recorded balance	1,113,000		558,000	1,901,000		8,453,000
TDR that subsequently defaulted [Abstract]
Number of contracts	0		0	0		7
Recorded Balance	0		0	0		520,000
Mortgage [Member] | Family 1 4 [Member]
Loans classified as troubled debt restructurings [Abstract]
Number of contracts	0		10	13		58
Pre-modification recorded balance	0		1,870,000	1,273,000		7,738,000
Post-modification recorded balance	0		1,656,000	1,237,000		7,330,000
TDR that subsequently defaulted [Abstract]
Number of contracts	0		0	1		2
Recorded Balance	0		0	106,000		148,000
Mortgage [Member] | Resort Lending [Member]
Loans classified as troubled debt restructurings [Abstract]
Number of contracts	1		7	5		29
Pre-modification recorded balance	207,000		1,575,000	1,240,000		7,529,000
Post-modification recorded balance	206,000		1,562,000	1,231,000		7,356,000
TDR that subsequently defaulted [Abstract]
Number of contracts	0		2	1		3
Recorded Balance	0		468,000	156,000		584,000
Mortgage [Member] | Home Equity Line of Credit - 1st Lien [Member]
Loans classified as troubled debt restructurings [Abstract]
Number of contracts	0		0	1		1
Pre-modification recorded balance	0		0	95,000		15,000
Post-modification recorded balance	0		0	97,000		0
TDR that subsequently defaulted [Abstract]
Number of contracts	0		0	0		0
Recorded Balance	0		0	0		0
Mortgage [Member] | Home Equity Line of Credit - 2nd Lien [Member]
Loans classified as troubled debt restructurings [Abstract]
Number of contracts	0		0	0		0
Pre-modification recorded balance	0		0	0		0
Post-modification recorded balance	0		0	0		0
TDR that subsequently defaulted [Abstract]
Number of contracts	0		0	0		0
Recorded Balance	0		0	0		0
Installment [Member] | Home Equity Installment - 1st Lien [Member]
Loans classified as troubled debt restructurings [Abstract]
Number of contracts	4		4	17		14
Pre-modification recorded balance	177,000		137,000	503,000		561,000
Post-modification recorded balance	178,000		98,000	498,000		521,000
TDR that subsequently defaulted [Abstract]
Number of contracts	2		0	2		1
Recorded Balance	32,000		0	32,000		26,000
Installment [Member] | Home Equity Installment - 2nd Lien [Member]
Loans classified as troubled debt restructurings [Abstract]
Number of contracts	4		2	14		16
Pre-modification recorded balance	220,000		59,000	432,000		604,000
Post-modification recorded balance	218,000		56,000	432,000		590,000
TDR that subsequently defaulted [Abstract]
Number of contracts	0		0	1		1
Recorded Balance	0		0	22,000		20,000
Installment [Member] | Loans Not Secured By Real Estate [Member]
Loans classified as troubled debt restructurings [Abstract]
Number of contracts	0		2	3		12
Pre-modification recorded balance	0		22,000	84,000		299,000
Post-modification recorded balance	0		21,000	55,000		278,000
TDR that subsequently defaulted [Abstract]
Number of contracts	0		0	0		0
Recorded Balance	0		0	0		0
Installment [Member] | Others 2 [Member]
Loans classified as troubled debt restructurings [Abstract]
Number of contracts	0		0	0		0
Pre-modification recorded balance	0		0	0		0
Post-modification recorded balance	0		0	0		0
TDR that subsequently defaulted [Abstract]
Number of contracts	0		0	0		0
Recorded Balance	0		0	0		0
Performing TDR's [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring	118,929,000			118,929,000			126,730,000
Non performing TDR's [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring	10,968,000	[1]		10,968,000	[1]		16,933,000	[1]
Commercial [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring	43,637,000			43,637,000			48,509,000
Commercial [Member] | Performing TDR's [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring	38,299,000			38,299,000			40,753,000
Commercial [Member] | Non performing TDR's [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring	5,338,000	[1]		5,338,000	[1]		7,756,000	[1]
Retail Segment [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring	86,260,000			86,260,000			95,154,000
Retail Segment [Member] | Performing TDR's [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring	80,630,000			80,630,000			85,977,000
Retail Segment [Member] | Non performing TDR's [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring	$ 5,630,000	[1],[2]		$ 5,630,000	[1],[2]		$ 9,177,000	[1],[2]

[1] Included in non-performing loans table above.

[2] Also includes loans on non-accrual at the time of modification until six payments are received on a timely basis.