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COMMITMENTS AND CONTINGENCIES (Tables)
 3 Months Ended
Mar. 31, 2016
Commitments and Contingencies Disclosure [Abstract]  
Schedule of principal contractual commitments
The following table summarizes our principal contractual commitments, excluding open orders that support normal operations, as of March 31, 2016 (in thousands):
 
Total
 
Less than 1 year
 
1-3 years
 
3-5 years
 
More than 5 years
Operating leases
$
2,406

 
$
1,040

 
$
1,366

 
$
—

 
$
—

Note payable, including contractual interest
53,073

 
2,070

 
4,140

 
46,863

 
—

Sales support services
3,366

 
416

 
833

 
2,117

 
—

Product supply contracts
3,496

 
2,308

 
1,188

 
—

 
—

Purchase order commitments
520

 
257

 
263

 
—

 
—

 
$
62,861

 
$
6,091

 
$
7,790

 
$
48,980

 
$
—