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Loans - Impaired Loans by Class (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Schedule of Financing Receivables [Line Items]
Recorded Investment	$ 36,996	$ 44,076	$ 36,996	$ 44,076	$ 42,351
Unpaid Principal Balance	39,211	48,188	39,211	48,188	46,408
Related Allowance	2,843	2,845	2,843	2,845	2,461
Average Recorded Investment	37,064	45,354	39,105	46,476	45,722
Recognized Interest Income	435	476	1,138	1,235	1,750
With No Related Allowance Recorded [Member]
Schedule of Financing Receivables [Line Items]
Recorded Investment	26,475	33,274	26,475	33,274	32,417
Unpaid Principal Balance	28,201	36,612	28,201	36,612	36,119
Related Allowance	0	0	0	0	0
Average Recorded Investment	25,158	32,982	26,994	31,004	31,541
Recognized Interest Income	305	407	796	932	1,360
With an Allowance Recorded [Member]
Schedule of Financing Receivables [Line Items]
Recorded Investment	10,521	10,802	10,521	10,802	9,934
Unpaid Principal Balance	11,010	11,576	11,010	11,576	10,289
Related Allowance	2,843	2,845	2,843	2,845	2,461
Average Recorded Investment	11,906	12,372	12,111	15,472	14,181
Recognized Interest Income	130	69	342	303	390
Commercial Real Estate [Member]
Schedule of Financing Receivables [Line Items]
Recorded Investment	14,418	16,970	14,418	16,970	14,935
Unpaid Principal Balance	15,135	18,153	15,135	18,153	15,683
Related Allowance	1,041	1,535	1,041	1,535	890
Average Recorded Investment	14,537	17,104	14,217	17,240	16,773
Recognized Interest Income	147	195	429	505	645
Commercial Real Estate [Member] | With No Related Allowance Recorded [Member]
Schedule of Financing Receivables [Line Items]
Recorded Investment	12,509	11,848	12,509	11,848	11,813
Unpaid Principal Balance	13,064	12,509	13,064	12,509	12,419
Related Allowance	0	0	0	0	0
Average Recorded Investment	11,183	11,487	10,700	10,913	11,100
Recognized Interest Income	123	151	362	351	495
Commercial Real Estate [Member] | With an Allowance Recorded [Member]
Schedule of Financing Receivables [Line Items]
Recorded Investment	1,909	5,122	1,909	5,122	3,122
Unpaid Principal Balance	2,071	5,644	2,071	5,644	3,264
Related Allowance	1,041	1,535	1,041	1,535	890
Average Recorded Investment	3,354	5,617	3,517	6,327	5,673
Recognized Interest Income	24	44	67	154	150
Commercial Real Estate Construction Financing Receivable [Member]
Schedule of Financing Receivables [Line Items]
Recorded Investment	1,380	1,364	1,380	1,364	1,284
Unpaid Principal Balance	1,380	1,381	1,380	1,381	1,284
Related Allowance	411	269	411	269	272
Average Recorded Investment	1,455	1,676	1,285	2,227	1,997
Recognized Interest Income	14	14	42	36	48
Commercial Real Estate Construction Financing Receivable [Member] | With No Related Allowance Recorded [Member]
Schedule of Financing Receivables [Line Items]
Recorded Investment	0	62	0	62	0
Unpaid Principal Balance	0	79	0	79	0
Related Allowance	0	0	0	0	0
Average Recorded Investment	0	364	40	262	202
Recognized Interest Income	0	1	0	4	0
Commercial Real Estate Construction Financing Receivable [Member] | With an Allowance Recorded [Member]
Schedule of Financing Receivables [Line Items]
Recorded Investment	1,380	1,302	1,380	1,302	1,284
Unpaid Principal Balance	1,380	1,302	1,380	1,302	1,284
Related Allowance	411	269	411	269	272
Average Recorded Investment	1,455	1,312	1,245	1,965	1,795
Recognized Interest Income	14	13	42	32	48
Commercial Other [Member]
Schedule of Financing Receivables [Line Items]
Recorded Investment	3,892	4,926	3,892	4,926	6,698
Unpaid Principal Balance	4,208	5,379	4,208	5,379	8,441
Related Allowance	660	807	660	807	841
Average Recorded Investment	4,099	5,441	5,473	5,636	5,898
Recognized Interest Income	95	109	163	179	350
Commercial Other [Member] | With No Related Allowance Recorded [Member]
Schedule of Financing Receivables [Line Items]
Recorded Investment	3,029	3,939	3,029	3,939	5,617
Unpaid Principal Balance	3,255	4,282	3,255	4,282	7,309
Related Allowance	0	0	0	0	0
Average Recorded Investment	3,071	3,923	4,221	3,793	4,265
Recognized Interest Income	66	109	125	168	322
Commercial Other [Member] | With an Allowance Recorded [Member]
Schedule of Financing Receivables [Line Items]
Recorded Investment	863	987	863	987	1,081
Unpaid Principal Balance	953	1,097	953	1,097	1,132
Related Allowance	660	807	660	807	841
Average Recorded Investment	1,028	1,518	1,252	1,843	1,633
Recognized Interest Income	29	0	38	11	28
Residential Term [Member]
Schedule of Financing Receivables [Line Items]
Recorded Investment	15,896	19,138	15,896	19,138	17,786
Unpaid Principal Balance	16,839	21,381	16,839	21,381	19,116
Related Allowance	661	228	661	228	404
Average Recorded Investment	15,539	19,448	16,309	19,696	19,378
Recognized Interest Income	169	149	479	490	673
Residential Term [Member] | With No Related Allowance Recorded [Member]
Schedule of Financing Receivables [Line Items]
Recorded Investment	9,777	15,787	9,777	15,787	13,432
Unpaid Principal Balance	10,488	17,888	10,488	17,888	14,600
Related Allowance	0	0	0	0	0
Average Recorded Investment	9,746	15,564	10,478	14,435	14,396
Recognized Interest Income	107	137	286	385	511
Residential Term [Member] | With an Allowance Recorded [Member]
Schedule of Financing Receivables [Line Items]
Recorded Investment	6,119	3,351	6,119	3,351	4,354
Unpaid Principal Balance	6,351	3,493	6,351	3,493	4,516
Related Allowance	661	228	661	228	404
Average Recorded Investment	5,793	3,884	5,831	5,261	4,982
Recognized Interest Income	62	12	193	105	162
Residential Construction [Member]
Schedule of Financing Receivables [Line Items]
Recorded Investment	0	0	0	0	0
Unpaid Principal Balance	0	0	0	0	0
Related Allowance	0	0	0	0	0
Average Recorded Investment	0	0	0	0	0
Recognized Interest Income	0	0	0	0	0
Residential Construction [Member] | With No Related Allowance Recorded [Member]
Schedule of Financing Receivables [Line Items]
Recorded Investment	0	0	0	0	0
Unpaid Principal Balance	0	0	0	0	0
Related Allowance	0	0	0	0	0
Average Recorded Investment	0	0	0	0	0
Recognized Interest Income	0	0	0	0	0
Residential Construction [Member] | With an Allowance Recorded [Member]
Schedule of Financing Receivables [Line Items]
Recorded Investment	0	0	0	0	0
Unpaid Principal Balance	0	0	0	0	0
Related Allowance	0	0	0	0	0
Average Recorded Investment	0	0	0	0	0
Recognized Interest Income	0	0	0	0	0
Home Equity [Member]
Schedule of Financing Receivables [Line Items]
Recorded Investment	1,384	1,678	1,384	1,678	1,648
Unpaid Principal Balance	1,621	1,894	1,621	1,894	1,884
Related Allowance	70	6	70	6	54
Average Recorded Investment	1,416	1,685	1,815	1,677	1,676
Recognized Interest Income	8	9	23	25	34
Home Equity [Member] | With No Related Allowance Recorded [Member]
Schedule of Financing Receivables [Line Items]
Recorded Investment	1,134	1,638	1,134	1,638	1,555
Unpaid Principal Balance	1,366	1,854	1,366	1,854	1,791
Related Allowance	0	0	0	0	0
Average Recorded Investment	1,140	1,644	1,549	1,601	1,578
Recognized Interest Income	7	9	21	24	32
Home Equity [Member] | With an Allowance Recorded [Member]
Schedule of Financing Receivables [Line Items]
Recorded Investment	250	40	250	40	93
Unpaid Principal Balance	255	40	255	40	93
Related Allowance	70	6	70	6	54
Average Recorded Investment	276	41	266	76	98
Recognized Interest Income	1	0	2	1	2
Consumer Loan [Member]
Schedule of Financing Receivables [Line Items]
Recorded Investment	26	0	26	0	0
Unpaid Principal Balance	28	0	28	0	0
Related Allowance	0	0	0	0	0
Average Recorded Investment	18	0	6	0	0
Recognized Interest Income	2	0	2	0	0
Consumer Loan [Member] | With No Related Allowance Recorded [Member]
Schedule of Financing Receivables [Line Items]
Recorded Investment	26	0	26	0	0
Unpaid Principal Balance	28	0	28	0	0
Related Allowance	0	0	0	0	0
Average Recorded Investment	18	0	6	0	0
Recognized Interest Income	2	0	2	0	0
Consumer Loan [Member] | With an Allowance Recorded [Member]
Schedule of Financing Receivables [Line Items]
Recorded Investment	0	0	0	0	0
Unpaid Principal Balance	0	0	0	0	0
Related Allowance	0	0	0	0	0
Average Recorded Investment	0	0	0	0	0
Recognized Interest Income	$ 0	$ 0	$ 0	$ 0

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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-Publisher FASB

-Name Accounting Standards Codification

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-Section 50

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-Publisher FASB

-Name Accounting Standards Codification

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