XML 20 R24.htm IDEA: XBRL DOCUMENT
v2.4.0.8

INVESTMENTS (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2013
INVESTMENTS |
Summary of investments in held-to-maturity, available-for-sale and trading securities |
June 30, 2013 |  | Amortized Cost |  | Gross Unrealized Holding Gains |  | Gross Unrealized Holding Losses |  | Fair Value |  | Continuous Unrealized Loss Position less than 12 Months |  | Continuous Unrealized Loss Position greater than 12 Months
Held-to-Maturity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasuries |  | $ | 11,019 |  |  | $ | 2 |  |  | $ | - |  |  | $ | 11,021 |  |  | $ | - |  |  | $ | - |
Certificates of deposit |  | 11,515 |  |  | - |  |  | - |  |  | 11,515 |  |  | - |  |  | - |
Municipal securities |  | 119,854 |  |  | 43 |  |  | - |  |  | 119,897 |  |  | - |  |  | - |
Total |  | $ | 142,388 |  |  | $ | 45 |  |  | $ | - |  |  | 142,433 |  |  | $ | - |  |  | $ | - |
Trading |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Auction rate securities |  |  |  |  |  |  |  |  |  |  | 5,809 |  |  |  |  |  |  |
Long-term: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Auction rate securities |  |  |  |  |  |  |  |  |  |  | 11,953 |  |  |  |  |  |  |
Total |  |  |  |  |  |  |  |  |  |  | $ | 160,195 |  |  |  |  |  |  |
December 31, 2012 |  | Amortized Cost |  | Gross Unrealized Holding Gains |  | Gross Unrealized Holding Losses |  | Fair Value |  | Continuous Unrealized Loss Position less than 12 Months |  | Continuous Unrealized Loss Position greater than 12 Months
Held-to-Maturity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasuries |  | $ | 16,040 |  |  | $ | - |  |  | $ | - |  |  | $ | 16,040 |  |  | $ | - |  |  | $ | - |
Certificates of deposit |  | 2,201 |  |  | - |  |  | - |  |  | 2,201 |  |  | - |  |  | - |
Municipal securities |  | 77,038 |  |  | - |  |  | 11 |  |  | 77,027 |  |  | 11 |  |  | - |
Available-for-sale |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Auction rate securities |  | 3,310 |  |  | 2,483 |  |  | - |  |  | 5,793 |  |  | - |  |  | - |
Total |  | $ | 98,589 |  |  | $ | 2,483 |  |  | $ | 11 |  |  | 101,061 |  |  | $ | 11 |  |  | $ | - |
Trading |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Auction rate securities |  |  |  |  |  |  |  |  |  |  | 1,763 |  |  |  |  |  |  |
Long-term: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Auction rate securities |  |  |  |  |  |  |  |  |  |  | 15,600 |  |  |  |  |  |  |
Total |  |  |  |  |  |  |  |  |  |  | $ | 118,424 |  |  |  |  |  |  |
Schedule of net gain recognized through earnings on trading securities |
|  | Three-Months Ended June 30, |  | Six-Months Ended June 30,
|  | 2013 |  | 2012 |  | 2013 |  | 2012
Gain on transfer from available-for-sale to trading |  | $ | - |  |  | $ | - |  |  | $ | - |  |  | $ | - |
Gain on trading securities sold |  | - |  |  | 54 |  |  | - |  |  | 1,073 |
Gain (loss) on trading securities held |  | 392 |  |  | (255 | ) |  | 399 |  |  | 499 |
Gain (loss) on trading securites |  | $ | 392 |  |  | $ | (201 | ) |  | $ | 399 |  |  | $ | 1,572 |
Summarizes the underlying contractual maturities of the Company's investments |
|  | June 30, 2013 |  | December 31, 2012
|  | Amortized Cost |  |  | Fair Value |  |  | Amortized Cost |  |  | Fair Value |
Less than 1 year: |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasuries |  | $ | 11,019 |  |  | $ | 11,021 |  |  | $ | 16,040 |  |  | $ | 16,040 |
Certificates of deposit |  | 11,515 |  |  | 11,515 |  |  | 2,201 |  |  | 2,201 |
Municipal securities |  | 119,854 |  |  | 119,897 |  |  | 77,038 |  |  | 77,027 |
Due 11 - 20 years: |  |  |  |  |  |  |  |  |  |  |  |
Auction rate securities |  | 11,042 |  |  | 11,042 |  |  | 10,748 |  |  | 10,748 |
Due 21 - 30 years: |  |  |  |  |  |  |  |  |  |  |  |
Auction rate securities |  | 6,720 |  |  | 6,720 |  |  | 9,925 |  |  | 12,408 |
Total |  | $ | 160,150 |  |  | $ | 160,195 |  |  | $ | 115,952 |  |  | $ | 118,424 |

X
- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + References No definition available. + Details
Name: | us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of trading securities (and certain trading assets) which consist of all investments in certain debt and equity securities (and other assets) that are bought and held principally for the purpose of selling them in the near term (thus held for only a short period of time) or for which an entity has elected the fair value option. Trading generally reflects active and frequent buying and selling, and trading securities are generally used with the objective of generating profits on short-term differences in price, but this category of investments may also include items which are not intended to be sold in the near term or for which the fair value option has been elected. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 21 -Subparagraph e -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 FASB Staff Position (FSP) -Number FAS115-1/124-1 -Paragraph 17 -Subparagraph a(1), b(1)-b(5) -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 Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 13 -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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26626-111562 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 12 -Subparagraph a -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 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Trading Securities -URI http://asc.fasb.org/extlink&oid=6526789 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6467456&loc=d3e113888-111728 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (c),(e) -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27357-111563 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 03-1 -Paragraph 21 -Subparagraph a(2), b(1)-b(5) -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. + Details
Name: | us-gaap_TradingSecuritiesAndCertainTradingAssetsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of unrealized gains and losses on investments. + References No definition available. + Details
Name: | us-gaap_UnrealizedGainLossOnInvestmentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration