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Loans Receivable and Allowance for Loan Losses (Allowance for Loan Losses and Recorded Investment in Financing Receivables) (Details) (USD $) | 12 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Individually evaluated for impairment | $ 10,556,000 | $ 12,384,000 |
Loans acquired with deteriorated credit quality | 1,069,000 | 1,246,000 |
Collectively evaluated for impairment | 465,604,000 | 444,699,000 |
Total Loans | 477,229,000 | 458,329,000 |
Beginning balance, | 5,458,000 | 5,616,000 | 5,453,000
Charge Offs | (2,437,000) | (1,846,000) | (866,000)
Recoveries | 31,000 | 113,000 | 29,000
Provision for loan losses | 2,450,000 | 1,575,000 | 1,000,000
Ending balance, | 5,502,000 | 5,458,000 | 5,616,000
Ending balance individually evaluated for impairment | 9,000 | 1,231,000 |
Ending balance collectively evaluated for impairment | 5,493,000 | 4,227,000 |
Gross Realized Gains on Loans | 270,000 | 241,000 |
Gross Realized Losses on Loans | 0 | 21,000 |
Proceeds from Sale of Residential Mortgage Loans | 7,200,000 | 8,900,000 | 12,800,000
Residential Real Estate Loans [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Loans acquired with deteriorated credit quality | 270,000 | 343,000 |
Collectively evaluated for impairment | 149,773,000 | 147,805,000 |
Total Loans | 150,043,000 | 148,148,000 |
Beginning balance, | 1,257,000 | 1,167,000 |
Charge Offs | (541,000) | (482,000) |
Recoveries | 7,000 | 44,000 |
Provision for loan losses | 1,074,000 | 528,000 |
Ending balance, | 1,797,000 | 1,257,000 |
Ending balance collectively evaluated for impairment | 1,797,000 | 1,257,000 |
Commercial Real Estate Loans [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Individually evaluated for impairment | 10,246,000 | 11,786,000 |
Loans acquired with deteriorated credit quality | 799,000 | 903,000 |
Collectively evaluated for impairment | 263,439,000 | 249,787,000 |
Total Loans | 274,484,000 | 262,476,000 |
Beginning balance, | 3,838,000 | 3,976,000 |
Charge Offs | (1,632,000) | (1,253,000) |
Recoveries |  | 7,000 |
Provision for loan losses | 977,000 | 1,108,000 |
Ending balance, | 3,183,000 | 3,838,000 |
Ending balance individually evaluated for impairment | 9,000 | 1,231,000 |
Ending balance collectively evaluated for impairment | 3,174,000 | 2,607,000 |
Construction Real Estate Loans [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Collectively evaluated for impairment | 13,435,000 | 11,087,000 |
Total Loans | 13,435,000 | 11,087,000 |
Beginning balance, | 72,000 | 110,000 |
Charge Offs | (181,000) |  |
Provision for loan losses | 228,000 | (38,000) |
Ending balance, | 119,000 | 72,000 |
Ending balance collectively evaluated for impairment | 119,000 | 72,000 |
Total Real Estate [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Charge Offs | (2,354,000) | (1,735,000) | (699,000)
Recoveries | 7,000 | 51,000 | 2,000
Commercial Loans [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Individually evaluated for impairment | 310,000 | 598,000 |
Collectively evaluated for impairment | 24,803,000 | 22,086,000 |
Total Loans | 25,113,000 | 22,684,000 |
Beginning balance, | 147,000 | 171,000 |
Charge Offs | (24,000) | (2,000) | (85,000)
Recoveries |  | 5,000 |
Provision for loan losses | 100,000 | (27,000) |
Ending balance, | 223,000 | 147,000 | 171,000
Ending balance collectively evaluated for impairment | 223,000 | 147,000 |
Consumer Loans [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Collectively evaluated for impairment | 14,154,000 | 13,934,000 |
Total Loans | 14,154,000 | 13,934,000 |
Beginning balance, | 144,000 | 192,000 |
Charge Offs | (59,000) | (109,000) | (82,000)
Recoveries | 24,000 | 57,000 | 27,000
Provision for loan losses | 71,000 | 4,000 |
Ending balance, | 180,000 | 144,000 | 192,000
Ending balance collectively evaluated for impairment | $ 180,000 | $ 144,000 |

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- Definition A valuation allowance for financing receivables that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524 + Details
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- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524 + Details
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- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524 + Details
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- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524 + Details
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- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6375948&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 13 -Subparagraph e -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Provision charged for the period based on estimated losses to be realized from loan and lease transactions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Audit and Accounting Guide (AAG) -Number AAG-DEP -Paragraph 168, 169, 170 -IssueDate 2006-05-01 -Chapter 5 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 9 + Details
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