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Loans (Narrative) (Details) (USD $) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012 | Dec. 31, 2012
Debt Instrument [Line Items] |  |  |  |  |
Commercial loans | $ 179,877,000 |  | $ 179,877,000 |  | $ 153,043,000
Percent of participation agreement interest | 80.00% |  | 80.00% |  |
Ownership interest in each loan is participates |  |  | 20.00% |  |
Cash payments of interest | 57,000 | 50,000 | 114,000 | 118,000 |
Aggregate purchase price of loans, maximum |  |  | 45,000,000 |  |
Percent of loans risk rated for capital adequacy |  |  | 100.00% |  |
Allocated specific reserves to modified TDRs | 1,600,000 |  | 1,600,000 |  | 830,000
Total TDR's | 6,600,000 |  | 6,600,000 |  | 7,000,000
Recorded investment | 6,350,000 | 5,448,000 | 6,350,000 | 5,448,000 |
Principal repayment at the date of modification | 50,000 |  | 50,000 |  |
Maturity date start |  |  | May 31, 2012 |  |
Maturity date end |  |  | Sep. 30, 2012 |  |
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum |  |  | 3.50% |  |
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum |  |  | 6.50% |  |
Number of days of default payment |  |  | 90 days |  |
Accruing TDR's | 3,848,000 |  | 3,848,000 |  | 3,684,000
Commercial Lines Of Credit [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Commercial loans | 12,538,000 |  | 12,538,000 |  | 11,782,000
Home Equity Line of Credit, Other [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Commercial loans | 11,658,000 |  | 11,658,000 |  | 10,447,000
Single-family residential [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Mortgage loans | $ 35,763,000 |  | $ 35,763,000 |  | $ 25,373,000
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum |  |  |  | 5.00% |
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum |  |  |  | 10.00% |
Previous maturity date of Receivables |  |  |  | 2034 |
Maturity date of Receivables |  |  |  | 2042 |
Reduction in stated interest rate of loan |  |  |  | 30 years |

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- Definition Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. 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. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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