Loans, Loan Ratings by Loan Class, Commercial Segment (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013		Dec. 31, 2012
Credit scores by loan class for mortgage and installment segments [Abstract]
Accrued interest included in recorded investment	$ 4,870		$ 4,829
Subsidiary's outstanding payment plan insured by third party (in hundredths)	94.90%
Subsidiary's payment outstanding payment plan 2, insured by third party (in hundredths)	4.90%
Credit ratings of insurer or risk retention group counterparties [Abstract]
Payment Plan Receivables, Full Refund	74,332		80,193
Payment Plan Receivable, Partial Refund	3,833		4,315
Payment Plan Receivable, Other	146		184
Total	78,311		84,692
Commercial [Member]
Loan ratings by loan class, commercial segment [Abstract]
Non-watch 1-6	523,644		523,880
Watch 7-8	58,639		57,507
Substandard Accrual 9	20,199		22,810
Non Accrual 10-11	11,538		14,753
Commercial loans, Total	614,020		618,950
Commercial [Member] | Income Producing - Real Estate [Member]
Loan ratings by loan class, commercial segment [Abstract]
Non-watch 1-6	187,106		183,530
Watch 7-8	27,441		27,096
Substandard Accrual 9	6,559		6,555
Non Accrual 10-11	4,099		5,611
Commercial loans, Total	225,205		222,792
Commercial [Member] | Land, Land Development and Construction Real Estate [Member]
Loan ratings by loan class, commercial segment [Abstract]
Non-watch 1-6	31,607		32,784
Watch 7-8	5,346		3,457
Substandard Accrual 9	1,052		2,959
Non Accrual 10-11	2,991		4,062
Commercial loans, Total	40,996		43,262
Commercial [Member] | Commercial and Industrial [Member]
Loan ratings by loan class, commercial segment [Abstract]
Non-watch 1-6	304,931		307,566
Watch 7-8	25,852		26,954
Substandard Accrual 9	12,588		13,296
Non Accrual 10-11	4,448		5,080
Commercial loans, Total	347,819		352,896
Commercial [Member] | Accrued interest included in total [Member]
Loan ratings by loan class, commercial segment [Abstract]
Non-watch 1-6	1,426		1,417
Watch 7-8	172		163
Substandard Accrual 9	91		112
Non Accrual 10-11	0		0
Commercial loans, Total	1,689		1,692
Mortgage [Member]
Credit scores by loan class for mortgage and installment segments [Abstract]
800 and above	44,456	[1]	43,614	[1]
750-799	137,666	[1]	147,054	[1]
700-749	114,263	[1]	113,924	[1]
650-699	81,711	[1]	85,565	[1]
600-649	53,780	[1]	51,868	[1]
550-599	38,035	[1]	39,344	[1]
500-549	23,215	[1]	24,108	[1]
Under 500	11,963	[1]	12,352	[1]
Unknown	13,144	[1]	11,902	[1]
Total	518,233	[1]	529,731	[1]
Accrued interest included in recorded investment	2,437	[1]	2,391	[1]
Mortgage [Member] | 1-4 Family [Member]
Credit scores by loan class for mortgage and installment segments [Abstract]
800 and above	21,176	[1]	19,638	[1]
750-799	56,977	[1]	62,419	[1]
700-749	60,733	[1]	59,594	[1]
650-699	54,234	[1]	57,584	[1]
600-649	34,065	[1]	31,465	[1]
550-599	27,200	[1]	27,739	[1]
500-549	19,641	[1]	20,243	[1]
Under 500	9,133	[1]	9,470	[1]
Unknown	7,845	[1]	6,185	[1]
Total	291,004	[1]	294,337	[1]
Accrued interest included in recorded investment	1,354	[1]	1,319	[1]
Mortgage [Member] | Resort Lending [Member]
Credit scores by loan class for mortgage and installment segments [Abstract]
800 and above	15,112	[1]	15,430	[1]
750-799	63,881	[1]	67,094	[1]
700-749	41,138	[1]	41,860	[1]
650-699	17,310	[1]	17,685	[1]
600-649	11,597	[1]	12,317	[1]
550-599	7,278	[1]	7,887	[1]
500-549	1,004	[1]	1,212	[1]
Under 500	1,626	[1]	1,637	[1]
Unknown	4,929	[1]	5,271	[1]
Total	163,875	[1]	170,393	[1]
Accrued interest included in recorded investment	776	[1]	750	[1]
Mortgage [Member] | Home Equity Line of Credit - 1st Lien [Member]
Credit scores by loan class for mortgage and installment segments [Abstract]
800 and above	2,975	[1]	3,031	[1]
750-799	4,525	[1]	4,758	[1]
700-749	3,401	[1]	3,293	[1]
650-699	2,275	[1]	2,309	[1]
600-649	3,361	[1]	3,311	[1]
550-599	858	[1]	964	[1]
500-549	658	[1]	656	[1]
Under 500	417	[1]	456	[1]
Unknown	265	[1]	258	[1]
Total	18,735	[1]	19,036	[1]
Accrued interest included in recorded investment	88	[1]	91	[1]
Mortgage [Member] | Home Equity Line of Credit - 2nd Lien [Member]
Credit scores by loan class for mortgage and installment segments [Abstract]
800 and above	5,193	[1]	5,515	[1]
750-799	12,283	[1]	12,783	[1]
700-749	8,991	[1]	9,177	[1]
650-699	7,892	[1]	7,987	[1]
600-649	4,757	[1]	4,775	[1]
550-599	2,699	[1]	2,754	[1]
500-549	1,912	[1]	1,997	[1]
Under 500	787	[1]	789	[1]
Unknown	105	[1]	188	[1]
Total	44,619	[1]	45,965	[1]
Accrued interest included in recorded investment	219	[1]	231	[1]
Installment [Member]
Credit scores by loan class for mortgage and installment segments [Abstract]
800 and above	25,362	[1]	26,505	[1]
750-799	61,738	[1]	62,896	[1]
700-749	38,053	[1]	38,763	[1]
650-699	26,428	[1]	27,557	[1]
600-649	14,570	[1]	15,383	[1]
550-599	8,938	[1]	9,558	[1]
500-549	5,090	[1]	5,393	[1]
Under 500	2,554	[1]	2,892	[1]
Unknown	2,435	[1]	1,648	[1]
Total	185,168	[1]	190,595	[1]
Accrued interest included in recorded investment	744	[1]	746	[1]
Installment [Member] | Home Equity Line of Credit - 1st Lien [Member]
Credit scores by loan class for mortgage and installment segments [Abstract]
800 and above	3,733	[1]	3,909	[1]
750-799	7,211	[1]	7,394	[1]
700-749	4,766	[1]	4,884	[1]
650-699	5,636	[1]	5,925	[1]
600-649	4,155	[1]	4,360	[1]
550-599	3,104	[1]	3,226	[1]
500-549	1,624	[1]	1,722	[1]
Under 500	668	[1]	760	[1]
Unknown	203	[1]	205	[1]
Total	31,100	[1]	32,385	[1]
Accrued interest included in recorded investment	133	[1]	137	[1]
Installment [Member] | Home Equity Line of Credit - 2nd Lien [Member]
Credit scores by loan class for mortgage and installment segments [Abstract]
800 and above	3,055	[1]	3,265	[1]
750-799	10,822	[1]	11,300	[1]
700-749	8,600	[1]	8,826	[1]
650-699	6,925	[1]	7,164	[1]
600-649	4,075	[1]	4,214	[1]
550-599	2,564	[1]	2,716	[1]
500-549	1,315	[1]	1,403	[1]
Under 500	1,070	[1]	1,195	[1]
Unknown	80	[1]	103	[1]
Total	38,506	[1]	40,186	[1]
Accrued interest included in recorded investment	149	[1]	157	[1]
Installment [Member] | Loans Not Secured By Real Estate [Member]
Credit scores by loan class for mortgage and installment segments [Abstract]
800 and above	18,533	[1]	19,293	[1]
750-799	43,262	[1]	43,740	[1]
700-749	23,975	[1]	24,267	[1]
650-699	13,238	[1]	13,758	[1]
600-649	5,982	[1]	6,442	[1]
550-599	3,087	[1]	3,428	[1]
500-549	2,044	[1]	2,154	[1]
Under 500	784	[1]	895	[1]
Unknown	2,109	[1]	1,322	[1]
Total	113,014	[1]	115,299	[1]
Accrued interest included in recorded investment	441	[1]	429	[1]
Installment [Member] | Others 2 [Member]
Credit scores by loan class for mortgage and installment segments [Abstract]
800 and above	41	[1]	38	[1]
750-799	443	[1]	462	[1]
700-749	712	[1]	786	[1]
650-699	629	[1]	710	[1]
600-649	358	[1]	367	[1]
550-599	183	[1]	188	[1]
500-549	107	[1]	114	[1]
Under 500	32	[1]	42	[1]
Unknown	43	[1]	18	[1]
Total	2,548	[1]	2,725	[1]
Accrued interest included in recorded investment	21	[1]	23	[1]
AM Best Rating A+ [Member]
Credit ratings of insurer or risk retention group counterparties [Abstract]
Payment Plan Receivables, Full Refund	0		0
Payment Plan Receivable, Partial Refund	0		0
Payment Plan Receivable, Other	90		110
Total	90		110
AM Best Rating, A Ratings [Member]
Credit ratings of insurer or risk retention group counterparties [Abstract]
Payment Plan Receivables, Full Refund	23,372		24,825
Payment Plan Receivable, Partial Refund	3,376		3,916
Payment Plan Receivable, Other	0		0
Total	26,748		28,741
AM Best Rating, A Minus Rating [Member]
Credit ratings of insurer or risk retention group counterparties [Abstract]
Payment Plan Receivables, Full Refund	16,317		19,310
Payment Plan Receivable, Partial Refund	457		399
Payment Plan Receivable, Other	0		0
Total	16,774		19,709
AM Best Rating, B+ Rating [Member]
Credit ratings of insurer or risk retention group counterparties [Abstract]
Payment Plan Receivables, Full Refund	15		56
Payment Plan Receivable, Partial Refund	0		0
Payment Plan Receivable, Other	0		0
Total	15		56
AM Best Rating, B Rating [Member]
Credit ratings of insurer or risk retention group counterparties [Abstract]
Payment Plan Receivables, Full Refund	0		0
Payment Plan Receivable, Partial Refund	0		0
Payment Plan Receivable, Other	0		0
Total	0		0
Not Rated [Member]
Credit ratings of insurer or risk retention group counterparties [Abstract]
Payment Plan Receivables, Full Refund	34,628		36,002
Payment Plan Receivable, Partial Refund	0		0
Payment Plan Receivable, Other	56		74
Total	$ 34,684		$ 36,076

[1] Credit scores have been updated within the last twelve months.