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Allowance for Credit Losses (Financing Receivables by Credit Quality Indicator and Class) (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Financing Receivable, Recorded Investment [Line Items]    
Finance Leases $ 65 $ 197
Pass [Member]
   
Financing Receivable, Recorded Investment [Line Items]    
Finance Leases 65 197
Special Mention [Member]
   
Financing Receivable, Recorded Investment [Line Items]    
Finance Leases      
Substandard [Member]
   
Financing Receivable, Recorded Investment [Line Items]    
Finance Leases      
Doubtful [Member]
   
Financing Receivable, Recorded Investment [Line Items]    
Finance Leases