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Stockholders' Equity Preferred stock (Details) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Class of Stock [Line Items]    
Common Stock, Voting Rights .15  
Preferred Stock, Shares Authorized 15,000,000us-gaap_PreferredStockSharesAuthorized 15,000,000us-gaap_PreferredStockSharesAuthorized
Preferred Stock, Par or Stated Value Per Share $ 1.00us-gaap_PreferredStockParOrStatedValuePerShare $ 1.00us-gaap_PreferredStockParOrStatedValuePerShare
Rights [Member]    
Class of Stock [Line Items]    
Preferred Stock, Shares Authorized 2,000,000us-gaap_PreferredStockSharesAuthorized
/ us-gaap_StatementClassOfStockAxis
= us-gaap_RightsMember