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Taxes on Income (Details) (USD $)
In Millions, unless otherwise specified
9 Months Ended
Sep. 30, 2012
Dec. 31, 2011
Taxes on Income [Abstract]    
Likelihood of Unfavorable Settlement more than 50 percent  
Valuation allowance $ 3.7 $ 3.7
Number of calendar years pretax losses taken for determining valuation allowance 3  
Internal Revenue Service (IRS) [Member]
   
Income Tax Examination [Line Items]    
Income Tax Examination, Year under Examination 2009  
Income Tax Examination, Description The Company currently is subject to a limited scope audit by the IRS which began during the third quarter of 2011 related to the Company's amendment of its 2009 federal tax return to utilize the five-year carry-back provisions allowed for losses realized during the 2009 tax year.