v2.4.0.6

Investments and Fair Value Measurements (Details) (USD $) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2013 Auction | Mar. 31, 2012 | Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |
Amortized Cost | $ 48,612,000 |  | $ 34,264,000 |  |
Unrealized Gains (Losses) | (194,000) |  | (269,000) |  |
Aggregate Fair Value | 48,418,000 |  | 33,995,000 |  |
Cash and cash equivalents | 55,000 |  | 1,150,000 |  |
Short-term available-for-sale securities | 47,634,000 |  | 32,122,000 |  | 32,122,000
Long-term available-for-sale securities | 729,000 |  | 723,000 |  | 723,000
Aggregate fair value of short-term municipal bonds | 39,200,000 |  |  |  | 26,100,000
Financial liabilities [Abstract] |  |  |  |  |
Short-term municipal security funds as a percentage of municipal securities (in hundredths) | 83.00% |  |  |  | 82.00%
Municipal revenue bonds as a percentage of municipal securities (in hundredths) | 11.00% |  |  |  | 12.00%
Municipal general obligation bonds as a percentage of municipal securities (in hundredths) | 60.00% |  |  |  | 60.00%
Reconciliation of available-for-sale ARS measured at fair value on a recurring basis using Level 3 inputs [Roll Forward] |  |  |  |  |
Beginning balance | 723,000 |  | 700,000 |  |
Total realized / unrealized losses [abstract] |  |  |  |  |
Included in earnings | 0 |  | 0 |  |
Included in OCI | 6,000 |  | 3,000 |  |
Sales and settlements | 0 |  | 0 |  |
Ending balance | 729,000 |  | 703,000 |  |
Number of investments that failed at auction | 1 |  |  |  |
Principal amount of failed ARS auction | 1,000,000 |  |  |  |
Basis points (in hundredths) | 3.25% |  |  |  |
Cost basis | 1,000,000 |  |  |  |
Recognized gains or losses on sale of investments | 0 |  | 0 |  |
Accumulated Other Comprehensive Income, unrealized gains and losses on available for sale securities [Roll Forward] |  |  |  |  |
Balance, January 1, | (180,000) |  | 135,000 |  |
Other comprehensive income, net of income taxes | 48,000 |  | 107,000 |  |
Balance, March 31, | (132,000) |  | 242,000 |  |
Fair Market Value [Member] |  |  |  |  |
Financial assets [Abstract] |  |  |  |  |
ARS | 729,000 |  | 723,000 |  |
Money market funds | 55,000 |  | 1,150,000 |  |
Municipal securities | 47,634,000 | [1] | 32,122,000 | [1] |
Foreign currency exchange contracts | 401,000 |  | 952,000 |  |
Total financial assets | 48,819,000 |  | 34,947,000 |  |
Financial liabilities [Abstract] |  |  |  |  |
Foreign currency exchange contracts | 346,000 |  | 115,000 |  |
Total financial liabilities | 346,000 |  | 115,000 |  |
Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  |  |  |
Financial assets [Abstract] |  |  |  |  |
ARS | 0 |  | 0 |  |
Money market funds | 55,000 |  | 1,150,000 |  |
Municipal securities | 47,634,000 | [1] | 32,122,000 | [1] |
Foreign currency exchange contracts | 0 |  | 0 |  |
Total financial assets | 47,689,000 |  | 33,272,000 |  |
Financial liabilities [Abstract] |  |  |  |  |
Foreign currency exchange contracts | 0 |  | 0 |  |
Total financial liabilities | 0 |  | 0 |  |
Significant Other Observable Inputs (Level 2) [Member] |  |  |  |  |
Financial assets [Abstract] |  |  |  |  |
ARS | 0 |  | 0 |  |
Money market funds | 0 |  | 0 |  |
Municipal securities | 0 | [1] | 0 | [1] |
Foreign currency exchange contracts | 401,000 |  | 952,000 |  |
Total financial assets | 401,000 |  | 952,000 |  |
Financial liabilities [Abstract] |  |  |  |  |
Foreign currency exchange contracts | 346,000 |  | 115,000 |  |
Total financial liabilities | 346,000 |  | 115,000 |  |
Significant Other Unobservable Inputs (Level 3) [Member] |  |  |  |  |
Financial assets [Abstract] |  |  |  |  |
ARS | 729,000 |  | 723,000 |  |
Money market funds | 0 |  | 0 |  |
Municipal securities | 0 | [1] | 0 | [1] |
Foreign currency exchange contracts | 0 |  | 0 |  |
Total financial assets | 729,000 |  | 723,000 |  |
Financial liabilities [Abstract] |  |  |  |  |
Foreign currency exchange contracts | 0 |  | 0 |  |
Total financial liabilities | 0 |  | 0 |  |
Auction Rate Securities ("ARS"), Greater Than One Year [Member] |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |
Amortized Cost | 1,000,000 |  | 1,000,000 |  |
Unrealized Gains (Losses) | (271,000) |  | (277,000) |  |
Aggregate Fair Value | 729,000 |  | 723,000 |  |
Cash and cash equivalents | 0 |  | 0 |  |
Short-term available-for-sale securities | 0 |  | 0 |  |
Long-term available-for-sale securities | 729,000 |  | 723,000 |  |
Money Market Funds, Ninety Days or Less [Member] |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |
Amortized Cost | 55,000 |  | 1,150,000 |  |
Unrealized Gains (Losses) | 0 |  | 0 |  |
Aggregate Fair Value | 55,000 |  | 1,150,000 |  |
Cash and cash equivalents | 55,000 |  | 1,150,000 |  |
Short-term available-for-sale securities | 0 |  | 0 |  |
Long-term available-for-sale securities | 0 |  | 0 |  |
Municipal Securities Maturing in One Year or Less [Member] |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |
Amortized Cost | 39,900,000 | [2],[3] | 26,885,000 | [2],[3] |
Unrealized Gains (Losses) | 61,000 | [2],[3] | (1,000) | [2],[3] |
Aggregate Fair Value | 39,961,000 | [2],[3] | 26,884,000 | [2],[3] |
Cash and cash equivalents | 0 | [2],[3] | 0 | [2],[3] |
Short-term available-for-sale securities | 39,961,000 | [2],[3] | 26,884,000 | [2],[3] |
Long-term available-for-sale securities | 0 | [2],[3] | 0 | [2],[3] |
Municipal Securities Maturing After One Year Through Three Years [Member] |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |
Amortized Cost | 1,993,000 | [2] | 1,345,000 | [2] |
Unrealized Gains (Losses) | 13,000 | [2] | 7,000 | [2] |
Aggregate Fair Value | 2,006,000 | [2] | 1,352,000 | [2] |
Cash and cash equivalents | 0 | [2] | 0 | [2] |
Short-term available-for-sale securities | 2,006,000 | [2] | 1,352,000 | [2] |
Long-term available-for-sale securities | 0 | [2] | 0 | [2] |
Municipal Securities Maturing Greater Than Three Years [Member] |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |
Amortized Cost | 5,664,000 | [2] | 3,884,000 | [2] |
Unrealized Gains (Losses) | 3,000 | [2] | 2,000 | [2] |
Aggregate Fair Value | 5,667,000 | [2] | 3,886,000 | [2] |
Cash and cash equivalents | 0 | [2] | 0 | [2] |
Short-term available-for-sale securities | 5,667,000 | [2] | 3,886,000 | [2] |
Long-term available-for-sale securities | $ 0 | [2] | $ 0 | [2] |
[1] | At March 31, 2013, municipal securities consisted of a 83/11/6 percent split between holdings in short-term municipal security funds, municipal revenue bonds and municipal general obligation bonds, respectively. As part of our investment policy, during the first quarter of 2012, we began investing in debt funds comprised of short-term municipal securities. At December 31, 2012, municipal securities consisted of an 82/12/6 split between holdings in short-term municipal security funds, municipal revenue bonds and municipal general obligation bonds, respectively. In addition, the underlying credit rating of the municipal securities at March 31, 2013 and December 31, 2012 were A+, A1 or better as defined by S&P 500 and Moody's, respectively.
[2] | Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties.
[3] | Amounts include short-term municipal security funds that do not have a set maturity date. The aggregate fair value of short-term municipal securities was $39.2 million and $26.1 million as of March 31, 2013, and December 31, 2012, respectively.

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- Definition Investments in debt and equity securities which are categorized neither as held-to-maturity nor trading and which are intended to be sold or mature more than one year from the balance sheet date or operating cycle, if longer. Such securities are reported at fair value; unrealized gains (losses) related to Available-for-sale Securities are excluded from earnings and reported in a separate component of shareholders' equity (other comprehensive income), unless the Available-for-sale security is designated as a hedge or is determined to have had an other than temporary decline in fair value below its amortized cost basis. All or a portion of the unrealized holding gain (loss) of an Available-for-sale security that is designated as being hedged in a fair value hedge is recognized in earnings during the period of the hedge, as are other than temporary declines in fair value below the cost basis for investments in equity securities and debt securities that an entity intends to sell or it is more likely than not that it will be required to sell before the recovery of its amortized cost basis. Other than temporary declines in fair value below the cost basis for debt securities categorized as Available-for-sale that an entity does not intend to sell and for which it is not more likely than not that the entity will be required to sell before the recovery of its amortized cost basis are bifurcated into credit losses and losses related to all other factors. Other than temporary declines in fair value below cost basis related to credit losses are recognized in earnings, and losses related to all other factors are recognized in other comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS115-1/124-1 -Paragraph 15E -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 15C -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 12 -Subparagraph b -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 -Glossary Available-for-Sale Securities -URI http://asc.fasb.org/extlink&oid=6505594 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS115-1/124-1 -Paragraph 15D -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 6: 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 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 17 -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
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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Company may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 8 -Footnote 2 -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 95 -Paragraph 7, 8, 9, 10 -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 -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7 -Footnote 1 -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
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- Definition Amount of gain (loss) recognized in earnings, arising from assets measured at fair value on a recurring basis using unobservable inputs (level 3). + 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 (c)(1) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 + Details
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- Definition Amount of gain (loss) recognized in other comprehensive income, arising from assets measured at fair value on a recurring basis using unobservable inputs (level 3). + 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 (c)(1a) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 + Details
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- Definition Amount of purchases, sales, issues, and settlements (net) which have taken place in relation to assets measured at fair value on a recurring basis using unobservable inputs (level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 32 -Subparagraph c(2) -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
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- Definition This element represents an asset measured at fair value using significant unobservable inputs (Level 3) which is required for reconciliation purposes of beginning and ending balances. + 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 (c) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 32 -Subparagraph c -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
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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents contracts related to the exchange of different currencies, including foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into and existing as of the balance sheet date. + References No definition available. + Details
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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents contracts related to the exchange of different currencies, including foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into and existing as of the balance sheet date. + References No definition available. + Details
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- Definition The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -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 Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 + Details
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- Definition This element represents the aggregate of the liabilities reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + 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=7578670&loc=d3e19207-110258 + Details
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- Definition Net of tax amount of the appreciation (loss) in the value of unsold available-for-sale securities. Excludes amounts related to other than temporary impairment (OTTI) losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=20435746&loc=SL7669646-108580 + Details
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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of short-term debt existing as of the balance sheet date. + References No definition available. + Details
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