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Long-Term Debt and Line of Credit (Parenthetical) (Detail) (USD $) | 12 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011
Schedule Of Capitalization Longterm Debt Line Of Credit [Line Items] |  |
Long-term debt, net of current portion | $ 3,113,000 | $ 3,337,000
Ten Year Term With Merrill Lynch One |  |
Schedule Of Capitalization Longterm Debt Line Of Credit [Line Items] |  |
Long-term debt, net of current portion | 3,000,000 | 3,000,000
Debt instrument, maturity date | Dec. 31, 2017 | Dec. 31, 2017
Debt instrument variable interest rate | ten-year term loan , with Merrill Lynch at LIBOR plus 1.3%, approximately 1.51 |
Ten Year Term With Merrill Lynch Two |  |
Schedule Of Capitalization Longterm Debt Line Of Credit [Line Items] |  |
Long-term debt, net of current portion | 1,500,000 | 1,500,000
Debt instrument, maturity date | Dec. 31, 2017 | Dec. 31, 2017
Debt instrument variable interest rate | ten-year term loan , with Merrill Lynch at LIBOR plus 1.3%, approximately 1.51 |
Three Year Term Bank Of America |  |
Schedule Of Capitalization Longterm Debt Line Of Credit [Line Items] |  |
Long-term debt, net of current portion | $ 2,600,000 | $ 2,600,000
Debt instrument, maturity date | Aug. 31, 2012 | Aug. 31, 2012
Debt instrument variable interest rate | three-year term loan , with Bank of America at LIBOR plus 2 |

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- Definition The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -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 Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + 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 210.5-02.22) -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 22 -Article 5 + Details
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