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8. COMMITMENTS AND CONTINGENCIES (Tables)
12 Months Ended
Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]  
Minimum annual payments under operating leases
   Facilities   Equipment   Total 
2015  $2,043   $675   $2,718 
2016   1,868    278    2,146 
2017   1,401    35    1,436 
2018   1,132    31    1,163 
2019   879    16    895 
Thereafter   710        710 
   $8,033   $1,035   $9,068