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2. Investment securities, Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2015 | Dec. 31, 2014
Investment securities with continuous unrealized loss position |  |
Less than 12 Months, Fair Value | $ 41,720 | $ 3,999
Less than 12 Months, Unrealized Losses | 521 | 6
12 Months or More, Fair Value | 16,455 | 28,336
12 Months or More, Unrealized Losses | 348 | 426
Total, Fair Value | 58,175 | 32,335
Total, Unrealized Losses | 869 | 432
Mortgage-backed securities |  |
Investment securities with continuous unrealized loss position |  |
Less than 12 Months, Fair Value | 4,705 | 436
Less than 12 Months, Unrealized Losses | 9 | 1
12 Months or More, Fair Value | 0 | 2,963
12 Months or More, Unrealized Losses | 0 | 51
Total, Fair Value | 4,705 | 3,399
Total, Unrealized Losses | 9 | 52
U.S. Government sponsored enterprises |  |
Investment securities with continuous unrealized loss position |  |
Less than 12 Months, Fair Value | 6,462 | 2,996
Less than 12 Months, Unrealized Losses | 53 | 4
12 Months or More, Fair Value | 9,316 | 9,850
12 Months or More, Unrealized Losses | 90 | 132
Total, Fair Value | 15,778 | 12,846
Total, Unrealized Losses | 143 | 136
State and political subdivisions |  |
Investment securities with continuous unrealized loss position |  |
Less than 12 Months, Fair Value | 30,553 | 567
Less than 12 Months, Unrealized Losses | 459 | 1
12 Months or More, Fair Value | 6,612 | 14,998
12 Months or More, Unrealized Losses | 253 | 225
Total, Fair Value | 37,165 | 15,565
Total, Unrealized Losses | 712 | 226
Corporate bonds |  |
Investment securities with continuous unrealized loss position |  |
Less than 12 Months, Fair Value | 0 | 0
Less than 12 Months, Unrealized Losses | 0 | 0
12 Months or More, Fair Value | 527 | 525
12 Months or More, Unrealized Losses | 5 | 18
Total, Fair Value | 527 | 525
Total, Unrealized Losses | $ 5 | $ 18

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- Definition Amount of unrealized loss on securities classified as available-for-sale that have been in a loss position for twelve months or longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
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- Definition Amount of unrealized loss on securities classified as available-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
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