IMPAIRMENT LOSSES AND RESTRUCTURING CHARGES Textual (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017	Jun. 30, 2017	Mar. 31, 2017
Restructuring Cost and Reserve [Line Items]
Impairment losses	$ 3,386			$ 0
Facility Closing
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	883	$ 9
Expense (Reversal)	1,067
Domestic | Facility Closing
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	717	9
Expense (Reversal)	859
Domestic | Facility Closing | RN's on Call - RNOC
Restructuring Cost and Reserve [Line Items]
Impairment losses	181
Domestic | Facility Closing | Sprint
Restructuring Cost and Reserve [Line Items]
Impairment losses	2,098
Domestic | Colorado Springs, CO | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	43
Domestic | Colorado Springs, CO | Facility Closing
Restructuring Cost and Reserve [Line Items]
Impairment losses	1,100
Expense (Reversal)	346
Domestic | Tell City, IN | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve			$ 262
Domestic | Tell City, IN | Facility Closing
Restructuring Cost and Reserve [Line Items]
Impairment losses			53
Expense (Reversal)		52	$ 97
Domestic | Corporate | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	320
Domestic | Corporate | Facility Closing
Restructuring Cost and Reserve [Line Items]
Expense (Reversal)	149
Nearshore | Facility Closing
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0	0
Expense (Reversal)	31
Nearshore | Corporate | Employee Severance
Restructuring Cost and Reserve [Line Items]
Expense (Reversal)	31
Offshore | Facility Closing
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	166	$ 0
Expense (Reversal)	177
Offshore | Corporate | Employee Severance
Restructuring Cost and Reserve [Line Items]
Expense (Reversal)	29
Offshore | Angeles, PH | Facility Closing
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	166
Expense (Reversal)	$ (18)