Quarterly report pursuant to Section 13 or 15(d)

STOCKHOLDERS' EQUITY - Changes in Accumulated Other Comprehensive Loss (Details)

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STOCKHOLDERS' EQUITY - Changes in Accumulated Other Comprehensive Loss (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2019
USD ($)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]  
Balance, December 31, 2018 $ (1,250)
Balance, March 31, 2019 (974)
Foreign Currency Translation Adjustment  
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]  
Balance, December 31, 2018 (1,217)
Other comprehensive income 259
Balance, March 31, 2019 (958)
Unrealized Gains/(Losses) on Available-For-Sale Investments  
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]  
Balance, December 31, 2018 (33)
Other comprehensive income 17
Balance, March 31, 2019 (16)
Total  
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]  
Balance, December 31, 2018 (1,250)
Other comprehensive income 276
Balance, March 31, 2019 $ (974)