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Debt Short-term Borrowings (Details) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Short-term Debt    
Notes Payable, Current $ 0us-gaap_NotesPayableCurrent $ 559,000us-gaap_NotesPayableCurrent
Amortization of Financing Costs $ 1,100,000us-gaap_AmortizationOfFinancingCosts $ 1,100,000us-gaap_AmortizationOfFinancingCosts
Notes Payable, Other Payables [Member]    
Short-term Debt    
Short-term Debt, Weighted Average Interest Rate 2.50%us-gaap_ShortTermDebtWeightedAverageInterestRate
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember		 2.50%us-gaap_ShortTermDebtWeightedAverageInterestRate
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember