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Investment securities (Details 4) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | ---
Amortized Cost | $ 34,113 | $ 26,536
Unrealized Gross Gain | 58 | 101
Unrealized Gross Loss | 22 | 0
Fair Value | 34,149 | 26,637
Corporate Debt Securities [Member] | Panama [Member] |  |
Amortized Cost | 12,660 | 7,050
Unrealized Gross Gain | 0 | 0
Unrealized Gross Loss | 0 | 0
Fair Value | 12,660 | 7,050
Sovereign Debt [Member] |  |
Amortized Cost | 21,453 | 19,486
Unrealized Gross Gain | 58 | 101
Unrealized Gross Loss | 22 | 0
Fair Value | 21,489 | 19,587
Sovereign Debt [Member] | Panama [Member] |  |
Amortized Cost | 2,000 | 2,000
Unrealized Gross Gain | 45 | 60
Unrealized Gross Loss | 0 | 0
Fair Value | 2,045 | 2,060
Sovereign Debt [Member] | Colombia [Member] |  |
Amortized Cost | 13,011 | 13,015
Unrealized Gross Gain | 4 | 40
Unrealized Gross Loss | 3 | 0
Fair Value | 13,012 | 13,055
Sovereign Debt [Member] | Honduras [Member] |  |
Amortized Cost | 6,442 | 4,471
Unrealized Gross Gain | 9 | 1
Unrealized Gross Loss | 19 | 0
Fair Value | $ 6,432 | $ 4,472

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- Definition Amount of investments in debt securities categorized as held-to-maturity valued at amortized cost, excludes other than temporary impairment (OTTI). + References No definition available. + Details
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- Definition This item represents the total of all debt securities grouped by maturity dates, at fair value, which are categorized as held-to-maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27232-111563 + Details
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- Definition As of the balance sheet date, the excess of fair value over carrying value (amortized cost) of a debt security categorized as held-to-maturity, exclusive of dividend or interest income recognized but not yet received and exclusive of any write-downs for other-than-temporary impairment. Such item represents the gross unrecognized holding gain. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 19 -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 Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 137 -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 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27232-111563 + Details
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- Definition As of the balance sheet date, the excess of carrying value (amortized cost) over fair value of a debt security categorized as held-to-maturity, exclusive of dividend or interest income recognized but not yet received and exclusive of any write-downs for other-than-temporary impairment. Such item represents the gross unrecognized holding loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 19 -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 Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 137 -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 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27232-111563 + Details
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