Quarterly report pursuant to Section 13 or 15(d)

Fair Value of Financial Instruments (Details 1)

v2.4.0.6
Fair Value of Financial Instruments (Details 1) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Schedule of liabilities measured at fair value on a recurring basis    
Total recurring fair value measurements $ 298 $ 1,182
Deferred director stock units [Member]
    
Schedule of liabilities measured at fair value on a recurring basis    
Total recurring fair value measurements 244  
Phantom stock units [Member]
    
Schedule of liabilities measured at fair value on a recurring basis    
Total recurring fair value measurements 54  
Quoted Prices in Active Markets (Level 1) [Member]
    
Schedule of liabilities measured at fair value on a recurring basis    
Total recurring fair value measurements 298  
Quoted Prices in Active Markets (Level 1) [Member] | Deferred director stock units [Member]
    
Schedule of liabilities measured at fair value on a recurring basis    
Total recurring fair value measurements 244  
Quoted Prices in Active Markets (Level 1) [Member] | Phantom stock units [Member]
    
Schedule of liabilities measured at fair value on a recurring basis    
Total recurring fair value measurements 54  
Significant Other Observable Inputs (Level 2) [Member]
    
Schedule of liabilities measured at fair value on a recurring basis    
Total recurring fair value measurements     
Significant Other Observable Inputs (Level 2) [Member] | Deferred director stock units [Member]
    
Schedule of liabilities measured at fair value on a recurring basis    
Total recurring fair value measurements     
Significant Other Observable Inputs (Level 2) [Member] | Phantom stock units [Member]
    
Schedule of liabilities measured at fair value on a recurring basis    
Total recurring fair value measurements     
Significant Unobservable Inputs (Level 3) [Member]
    
Schedule of liabilities measured at fair value on a recurring basis    
Total recurring fair value measurements     
Significant Unobservable Inputs (Level 3) [Member] | Deferred director stock units [Member]
    
Schedule of liabilities measured at fair value on a recurring basis    
Total recurring fair value measurements     
Significant Unobservable Inputs (Level 3) [Member] | Phantom stock units [Member]
    
Schedule of liabilities measured at fair value on a recurring basis    
Total recurring fair value measurements