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6. Operating Leases
6 Months Ended
Jun. 30, 2015
Commitments and Contingencies Disclosure [Abstract]  
6. Operating leases
Twelve months ended June 30,   Future Rent Payments  
2016   $ 439  
2017     455  
2018     470  
2019     487  
2020     461  
Total   $ 2,312