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Investments (Tables) | 9 Months Ended
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Sep. 30, 2013
Investments [Abstract] |
Held-to-maturity Securities [Table Text Block] | Below is a summary of the amortized cost and estimated market values of the Company’s investment securities as of as of September 30, 2013 and December 31, 2012.
|  | September 30, 2013 |  | December 31, 2012 |
|  | Amortized |  | Market |  | Amortized |  | Market |
|  | Cost |  | Value |  | Cost |  | Value |
|  | (Dollars in thousands) |
Municipal bonds: |  |  |  |  |  |  |  |  |  |  |  |  |
Current |  | $ | 5,875 |  | $ | 5,949 |  | $ | 8,004 |  | $ | 8,117 |
Due from one through five years |  |  | 19,941 |  |  | 20,900 |  |  | 25,384 |  |  | 26,620 |
Due from six through ten years |  |  | 8,344 |  |  | 8,797 |  |  | 10,832 |  |  | 11,756 |
Total |  | $ | 34,160 |  | $ | 35,646 |  | $ | 44,220 |  | $ | 46,493 |
Unrealized Gain (Loss) on Investments [Table Text Block] | The unrealized gains and losses on investment securities as of September 30, 2013 and December 31, 2012 were as follows:
|  | September 30, 2013 |  | December 31, 2012 |
|  | Unrealized |  | Unrealized |  | Unrealized |  | Unrealized |
|  | Gains |  | Losses |  | Gains |  | Losses |
|  | (Dollars in thousands) |
Municipal bonds |  | $ | 1,486 |  | $ | - |  | $ | 2,473 |  | $ | 200 |

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- Definition Tabular disclosure of all investments in certain debt and equity securities for which the entity has the positive intent and ability to hold until maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5086-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6435544&loc=d3e41834-113960 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27405-111563 + Details
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- Definition Tabular disclosure of unrealized gains and losses on investments. + References No definition available. + Details
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