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Share-Based Payments (Details) (USD $)
 3 Months Ended 9 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Long-Term Incentive Plan 1999 [Member]
Mar. 05, 2012
Long-Term Incentive Plan 1999 [Member]
Person
Sep. 30, 2012
Long-Term Incentive Plan 2009 [Member]
Share Based Payments (Textual) [Abstract]              
Granted stock options under Long-Term Incentive Plan             105,000
Cancelled stock options previously issued under Long-Term Incentive Plans         16,060   16,060
Total share-based compensation expense $ 200,000 $ 400,000 $ 776,000 $ 1,102,000      
Number of employees           7  
Granted Stock Options expiration date         2 years    
Total incremental share-based compensation cost         $ 100,000