DISCONTINUED OPERATIONS - Schedule of Income from Discontinued Operations (Details) - USD ($) $ in Thousands	7 Months Ended		12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	May 31, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss from discontinued operations, net of income tax	$ 0	$ 0	$ 0	$ (111)	$ 0	$ 0
Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues				46,771
Operating expenses				43,081
Gross margin				3,690
Selling, general and administrative expenses				1,939
Gain on disposal				7
Income from discontinued operations, before income tax				1,758
Less: Provision for income taxes				1,869
Loss from discontinued operations, net of income tax				$ (111)