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INTANGIBLES AND OTHER ASSETS - SCHEDULE OF INTANGIBLES AND OTHER ASSETS (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]          
Other assets $ 288   $ 288   $ 258
Intangibles and other assets, net 289   $ 289   264
Intangible asset - useful life     10 years    
Amortization of intangibles 2 $ 3 $ 5 $ 15  
Net book value of purchased patents 1   1    
Purchased patents and other purchased intangibles          
Finite-Lived Intangible Assets [Line Items]          
Purchased patents and other purchased intangible assets 4,605   4,605   4,605
Less: Accumulated amortization of purchased patents and other purchased intangibles (4,604)   (4,604)   (4,599)
Purchased patents and other purchased intangible assets, net $ 1   $ 1   $ 6