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Loans and Allowance for Loan Losses (Activity in Allowance for Loan Losses by Portfolio Segment) (Details) (USD $)
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12 Months Ended |
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
|
| Financing Receivable, Allowance for Credit Losses [Roll Forward] |
|
|
|
| Beginning balance |
$ 21,590,000 |
$ 23,044,000 |
$ 23,011,000 |
| Loans charged off |
(3,444,000) |
(4,274,000) |
(4,502,000) |
| Recoveries |
746,000 |
768,000 |
744,000 |
| Provision (credit) |
2,224,000 |
2,052,000 |
3,791,000 |
| Ending balance |
21,116,000 |
21,590,000 |
23,044,000 |
| Ending Balance: Individually evaluated for impairment |
2,239,000 |
2,981,000 |
3,106,000 |
| Ending Balance: Collectively evaluated for impairment |
18,877,000 |
18,609,000 |
19,938,000 |
| Ending Balance: Individually evaluated for impairment |
21,179,000 |
27,947,000 |
27,157,000 |
| Ending Balance: Collectively evaluated for impairment |
1,751,431,000 |
1,552,455,000 |
1,536,709,000 |
| Total ending loans balance |
1,772,610,000 |
1,580,402,000 |
1,563,866,000 |
| Residential real estate loans |
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|
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| Financing Receivable, Allowance for Credit Losses [Roll Forward] |
|
|
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| Beginning balance |
5,603,000 |
6,996,000 |
6,398,000 |
| Loans charged off |
(785,000) |
(1,059,000) |
(1,197,000) |
| Recoveries |
165,000 |
35,000 |
73,000 |
| Provision (credit) |
(84,000) |
(369,000) |
1,722,000 |
| Ending balance |
4,899,000 |
5,603,000 |
6,996,000 |
| Ending Balance: Individually evaluated for impairment |
1,220,000 |
1,750,000 |
2,255,000 |
| Ending Balance: Collectively evaluated for impairment |
3,679,000 |
3,853,000 |
4,741,000 |
| Ending Balance: Individually evaluated for impairment |
9,656,000 |
14,435,000 |
13,805,000 |
| Ending Balance: Collectively evaluated for impairment |
575,812,000 |
555,384,000 |
558,368,000 |
| Total ending loans balance |
585,468,000 |
569,819,000 |
572,173,000 |
| Commercial real estate loans |
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|
|
| Financing Receivable, Allowance for Credit Losses [Roll Forward] |
|
|
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| Beginning balance |
4,374,000 |
4,549,000 |
5,702,000 |
| Loans charged off |
(361,000) |
(952,000) |
(593,000) |
| Recoveries |
135,000 |
121,000 |
222,000 |
| Provision (credit) |
334,000 |
656,000 |
782,000 |
| Ending balance |
4,482,000 |
4,374,000 |
4,549,000 |
| Ending Balance: Individually evaluated for impairment |
251,000 |
526,000 |
265,000 |
| Ending Balance: Collectively evaluated for impairment |
4,231,000 |
3,848,000 |
4,284,000 |
| Ending Balance: Individually evaluated for impairment |
7,658,000 |
8,864,000 |
7,968,000 |
| Ending Balance: Collectively evaluated for impairment |
633,003,000 |
532,235,000 |
498,263,000 |
| Total ending loans balance |
640,661,000 |
541,099,000 |
506,231,000 |
| Commercial loans |
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|
|
| Financing Receivable, Allowance for Credit Losses [Roll Forward] |
|
|
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| Beginning balance |
6,220,000 |
5,933,000 |
4,846,000 |
| Loans charged off |
(1,544,000) |
(1,426,000) |
(1,393,000) |
| Recoveries |
395,000 |
495,000 |
406,000 |
| Provision (credit) |
1,752,000 |
1,218,000 |
2,074,000 |
| Ending balance |
6,823,000 |
6,220,000 |
5,933,000 |
| Ending Balance: Individually evaluated for impairment |
168,000 |
132,000 |
286,000 |
| Ending Balance: Collectively evaluated for impairment |
6,655,000 |
6,088,000 |
5,647,000 |
| Ending Balance: Individually evaluated for impairment |
1,853,000 |
2,635,000 |
3,610,000 |
| Ending Balance: Collectively evaluated for impairment |
255,662,000 |
176,568,000 |
186,844,000 |
| Total ending loans balance |
257,515,000 |
179,203,000 |
190,454,000 |
| Home equity loans |
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|
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| Financing Receivable, Allowance for Credit Losses [Roll Forward] |
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|
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| Beginning balance |
2,403,000 |
2,520,000 |
2,704,000 |
| Loans charged off |
(611,000) |
(647,000) |
(1,234,000) |
| Recoveries |
19,000 |
56,000 |
23,000 |
| Provision (credit) |
436,000 |
474,000 |
1,027,000 |
| Ending balance |
2,247,000 |
2,403,000 |
2,520,000 |
| Ending Balance: Individually evaluated for impairment |
496,000 |
433,000 |
261,000 |
| Ending Balance: Collectively evaluated for impairment |
1,751,000 |
1,970,000 |
2,259,000 |
| Ending Balance: Individually evaluated for impairment |
1,741,000 |
1,571,000 |
1,515,000 |
| Ending Balance: Collectively evaluated for impairment |
269,968,000 |
271,059,000 |
276,860,000 |
| Total ending loans balance |
271,709,000 |
272,630,000 |
278,375,000 |
| Consumer loans |
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|
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| Financing Receivable, Allowance for Credit Losses [Roll Forward] |
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|
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| Beginning balance |
319,000 |
184,000 |
420,000 |
| Loans charged off |
(143,000) |
(190,000) |
(85,000) |
| Recoveries |
32,000 |
61,000 |
20,000 |
| Provision (credit) |
73,000 |
264,000 |
171,000 |
| Ending balance |
281,000 |
319,000 |
184,000 |
| Ending Balance: Individually evaluated for impairment |
104,000 |
140,000 |
39,000 |
| Ending Balance: Collectively evaluated for impairment |
177,000 |
179,000 |
145,000 |
| Ending Balance: Individually evaluated for impairment |
271,000 |
442,000 |
259,000 |
| Ending Balance: Collectively evaluated for impairment |
16,986,000 |
17,209,000 |
16,374,000 |
| Total ending loans balance |
17,257,000 |
17,651,000 |
16,633,000 |
| Unallocated |
|
|
|
| Financing Receivable, Allowance for Credit Losses [Roll Forward] |
|
|
|
| Beginning balance |
2,671,000 |
2,862,000 |
2,941,000 |
| Provision (credit) |
(287,000) |
(191,000) |
79,000 |
| Ending balance |
2,384,000 |
2,671,000 |
2,862,000 |
| Ending Balance: Collectively evaluated for impairment |
$ 2,384,000 |
$ 2,671,000 |
$ 2,862,000 |