XML 25 R30.htm IDEA: XBRL DOCUMENT v2.4.0.6
Fair Value Measurements And Marketable Securities (Fair Value Measurements) (Details) (USD $)
Mar. 31, 2012
Dec. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Marketable securities $ 21,350,000 $ 31,337,000
Equity securities - Deferred comp fund 15,541,000 13,780,000
Quoted Prices In Active Markets (Level 1) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 12,380,000 10,751,000
Significant Other Observable Inputs (Level 2) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 3,161,000 3,029,000
Significant Unobservable Inputs (Level 3) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund      
Carrying Amount [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 15,541,000 13,780,000
Total Fair Value [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 15,541,000 13,780,000
Municipal Bonds [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Marketable securities 653,000 2,249,000
Municipal Bonds [Member] | Significant Other Observable Inputs (Level 2) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Marketable securities 21,350,000 31,337,000
Municipal Bonds [Member] | Significant Unobservable Inputs (Level 3) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Marketable securities      
Municipal Bonds [Member] | Carrying Amount [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Marketable securities 21,350,000 31,337,000
Municipal Bonds [Member] | Total Fair Value [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Marketable securities 21,350,000 31,337,000
Money Market [Member] | Significant Other Observable Inputs (Level 2) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 3,161,000 3,029,000
Money Market [Member] | Significant Unobservable Inputs (Level 3) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund      
Money Market [Member] | Carrying Amount [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 3,161,000 3,029,000
Money Market [Member] | Total Fair Value [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 3,161,000 3,029,000
Large Cap Value [Member] | Quoted Prices In Active Markets (Level 1) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 3,092,000 2,716,000
Large Cap Value [Member] | Significant Unobservable Inputs (Level 3) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund      
Large Cap Value [Member] | Carrying Amount [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 3,092,000 2,716,000
Large Cap Value [Member] | Total Fair Value [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 3,092,000 2,716,000
Large Cap Growth [Member] | Quoted Prices In Active Markets (Level 1) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 2,468,000 2,184,000
Large Cap Growth [Member] | Significant Unobservable Inputs (Level 3) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund      
Large Cap Growth [Member] | Carrying Amount [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 2,468,000 2,184,000
Large Cap Growth [Member] | Total Fair Value [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 2,468,000 2,184,000
Fixed Income [Member] | Quoted Prices In Active Markets (Level 1) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 1,631,000 1,429,000
Fixed Income [Member] | Significant Unobservable Inputs (Level 3) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund      
Fixed Income [Member] | Carrying Amount [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 1,631,000 1,429,000
Fixed Income [Member] | Total Fair Value [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 1,631,000 1,429,000
Small Cap Value [Member] | Quoted Prices In Active Markets (Level 1) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 1,345,000 1,244,000
Small Cap Value [Member] | Significant Unobservable Inputs (Level 3) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund      
Small Cap Value [Member] | Carrying Amount [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 1,345,000 1,244,000
Small Cap Value [Member] | Total Fair Value [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 1,345,000 1,244,000
Balanced And Lifestyle [Member] | Quoted Prices In Active Markets (Level 1) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 1,101,000 814,000
Balanced And Lifestyle [Member] | Significant Unobservable Inputs (Level 3) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund      
Balanced And Lifestyle [Member] | Carrying Amount [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 1,101,000 814,000
Balanced And Lifestyle [Member] | Total Fair Value [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 1,101,000 814,000
Specialty [Member] | Quoted Prices In Active Markets (Level 1) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 908,000 832,000
Specialty [Member] | Significant Unobservable Inputs (Level 3) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund      
Specialty [Member] | Carrying Amount [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 908,000 832,000
Specialty [Member] | Total Fair Value [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 908,000 832,000
International [Member] | Quoted Prices In Active Markets (Level 1) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 694,000 562,000
International [Member] | Significant Unobservable Inputs (Level 3) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund      
International [Member] | Carrying Amount [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 694,000 562,000
International [Member] | Total Fair Value [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 694,000 562,000
Large Cap Blend [Member] | Quoted Prices In Active Markets (Level 1) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 673,000 500,000
Large Cap Blend [Member] | Significant Unobservable Inputs (Level 3) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund      
Large Cap Blend [Member] | Carrying Amount [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 673,000 500,000
Large Cap Blend [Member] | Total Fair Value [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 673,000 500,000
Mid Cap Growth [Member] | Quoted Prices In Active Markets (Level 1) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 344,000 363,000
Mid Cap Growth [Member] | Significant Unobservable Inputs (Level 3) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund      
Mid Cap Growth [Member] | Carrying Amount [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 344,000 363,000
Mid Cap Growth [Member] | Total Fair Value [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 344,000 363,000
Small Cap Growth [Member] | Quoted Prices In Active Markets (Level 1) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 62,000 53,000
Small Cap Growth [Member] | Significant Unobservable Inputs (Level 3) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund      
Small Cap Growth [Member] | Carrying Amount [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 62,000 53,000
Small Cap Growth [Member] | Total Fair Value [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 62,000 53,000
Mid Cap Value [Member] | Quoted Prices In Active Markets (Level 1) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 62,000 54,000
Mid Cap Value [Member] | Significant Unobservable Inputs (Level 3) [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund      
Mid Cap Value [Member] | Carrying Amount [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund 62,000 54,000
Mid Cap Value [Member] | Total Fair Value [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities - Deferred comp fund $ 62,000 $ 54,000