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Fair Value Disclosures (Narrative Disclosures) (Details) (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2014 | Dec. 31, 2013
Fair Value Inputs, Assets, Quantitative Information |  |
Fair value, assets, level 1 to level 2 transfers | $ 0 | $ 0
Fair value, assets, level 2 to level 1 transfers | 0 | 0
Fair value, assets, transfers into level 3 | 0 | 0
Fair value, assets, transfers out of level 3 | 0 | 0
Fair value, liabilities, level 1 to level 2 transfers | 0 | 0
Fair value, liabilities, level 2 to level 1 transfers | 0 | 0
Fair value, liabilities, transfers into level 3 | 0 | 0
Fair value, liabilities, transfers out of level 3 | 0 | 0
Commercial paper, at carrying value | 14,600,000 | 11,000,000
Certificates of deposit, at carrying value | 6,000,000 | 4,000,000
Minimum |  |
Fair Value Inputs, Assets, Quantitative Information |  |
Quantification of unobservable inputs for level 3 values for impaired loans | 19.00% |
Maximum |  |
Fair Value Inputs, Assets, Quantitative Information |  |
Quantification of unobservable inputs for level 3 values for impaired loans | 100.00% |
Weighted Average |  |
Fair Value Inputs, Assets, Quantitative Information |  |
Quantification of unobservable inputs for level 3 values for impaired loans | 64.00% |
Impaired loans |  |
Fair Value Inputs, Assets, Quantitative Information |  |
Assets measured on a non-recurring basis, fair value | 12,461,000 | 13,719,000
Foreclosed properties |  |
Fair Value Inputs, Assets, Quantitative Information |  |
Assets measured on a non-recurring basis, fair value | 333,000 | 333,000
Fair Value Measurements - Level 3 Inputs | Impaired loans |  |
Fair Value Inputs, Assets, Quantitative Information |  |
Assets measured on a non-recurring basis, fair value | 53,000 | 53,000
Fair Value Measurements - Level 3 Inputs | Foreclosed properties |  |
Fair Value Inputs, Assets, Quantitative Information |  |
Assets measured on a non-recurring basis, fair value | $ 0 | $ 0
Assets, fair value disclosure, nonrecurring, number of foreclosed properties | 0 |

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- Definition This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a nonrecurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References No definition available. + Details
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- Definition A savings certificate entitling the Entity (that is, bearer) to receive interest at an established maturity date, based upon a fixed interest rate. A certificate of deposit may be issued in any denomination. Certificates of deposit are generally issued by commercial banks and, therefore, insured by the FDIC (up to the prescribed limit). Certificates of deposit generally restrict holders from withdrawing funds on demand without the incurrence of penalties. Generally, only certificates of deposit with original maturities of three months or less qualify as cash equivalents. Original maturity means original maturity to the entity holding the investment. As a related example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Unsecured short-term debt instrument issued by corporations which are highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3052-108585 + Details
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- Definition Amount of transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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- Definition Amount of transfers of assets measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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- Definition Amount of transfers of liabilities measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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- Definition Amount of transfers of liabilities measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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