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11. Fair Value measurements (Details-Finance receivables) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2014 | Mar. 31, 2013
Finance Receivables Measured at Fair Value: |  |
Balance at beginning of period | $ 14,476 | $ 59,668
Payments on finance receivables at fair value | (5,321) | (16,519)
Charge-offs on finance receivables at fair value | (343) | (1,001)
Discount accretion | 239 | 886
Mark to fair value | 7 | (13)
Balance at end of period | 9,058 | 43,021
Balance at beginning of period | 13,117 | 57,107
Principal payments on debt at fair value | (5,039) | (17,930)
Premium accretion | 304 | 1,104
Mark to fair value | 194 | 106
Balance at end of period | 8,576 | 40,387
Reduction for principal payments collected and payable | (1,399) | (5,687)
Adjusted balance at end of period | $ 7,177 | $ 34,700

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- Definition Fair value of financial and nonfinancial obligations. + 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 (a) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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- Definition Fair value portion of receivables, including, but not limited to, trade account receivables, note receivables, and loan receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3, 4 -Article 5 + Details
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