SEGMENT REPORTING - Revenue By Country (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenue By Country [Line Items]
Revenues	$ 17,844	$ 20,661
Concentration Risk, Percentage	100.00%	100.00%
USA
Revenue By Country [Line Items]
Revenues	$ 10,113	$ 10,568
Concentration Risk, Percentage	57.00%	51.00%
United Kingdom
Revenue By Country [Line Items]
Revenues	$ 3,083	$ 4,605
Concentration Risk, Percentage	17.00%	22.00%
All Others
Revenue By Country [Line Items]
Revenues	$ 4,648	$ 5,488
Concentration Risk, Percentage	26.00%	27.00%