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Notes Payable and Other Obligations (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Future minimum lease payments under non-cancelable notes payable, operating and capital leases    
2014 Notes and Capital Leases $ 107  
2015 Notes and Capital Leases 66  
2016 Notes and Capital Leases 45  
2017 Notes and Capital Leases 45  
Thereafter Notes and Capital Leases 13  
Total future minimum lease payments, Notes and Capital Leases 276  
Less amount representing interest (34)  
Present value of net minimum lease payments 242  
Less current portion (92) (144)
Notes payable and other obligations 150 114
2014 Operating Leases 1,114  
2015 Operating Leases 1,588  
2016 Operating Leases 1,626  
2017 Operating Leases 1,663  
Thereafter Operating Leases 10,609  
Total future minimum lease payments, Operating Lease $ 16,600