Annual report pursuant to Section 13 and 15(d)

Debt and Capital Lease Obligations - Capital Lease (Details)

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Debt and Capital Lease Obligations - Capital Lease (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Capital Leased Assets [Line Items]      
Gain on termination of lease     $ 679
Capital Leases, Future Minimum Payments Due [Abstract]      
2013 286    
2014 58    
Total 344    
Less amounts representing interest 10    
Present value of net minimum lease payments (including current portion of $276) 334    
Interest Paid 365 563 718
Interest Costs, Capitalized During Period 0 0 0
Equipment [Member]
     
Capital Lease Obligations [Abstract]      
Equipment 1,402 1,402  
Accumulated amortization (1,322) (1,078)  
Capital leases, net $ 80 $ 324  
Rickenbacker Capital Lease [Member]
     
Capital Leased Assets [Line Items]      
Initial term of capital lease (in years) 10    
Capital lease, number of renewal options 2    
Capital lease, years In renewal option 5