Quarterly report pursuant to Section 13 or 15(d)

Operating and Capital Leases (Details)

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Operating and Capital Leases (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Operating and Capital Leases [Abstract]          
Expiration date     May 31, 2017    
Option to renew     5 years    
Future minimum operating lease payments:          
2015 (remainder of year) $ 188   $ 188    
2016 375   375    
2017 157   157    
Total 720   720    
Capital lease for purchase of machinery and equipment 11   11   $ 13
Rent expense $ 86 $ 86 $ 172 $ 171