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INVESTMENTS (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | ---
Amortized Cost | $ 44,220 | $ 51,584
Market Value | 46,493 | 54,181
Municipal Bonds, Current [Member] |  |
Amortized Cost | 8,004 | 4,745
Market Value | 8,117 | 4,781
Municipal Bonds, Due from One Through Five Years [Member] |  |
Amortized Cost | 25,384 | 32,679
Market Value | 26,620 | 34,184
Municipal Bonds, Due from Six Through Ten Years [Member] |  |
Amortized Cost | 10,832 | 14,160
Market Value | $ 11,756 | $ 15,216

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- Definition This item represents the aggregate fair value of investments in debt securities as of the balance sheet date and which are categorized as held-to-maturity. + 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FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 19 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 137 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 (a) -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27232-111563 + Details
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