RESTRUCTURING AND INTEGRATION CHARGES AND IMPAIRMENT LOSSES (NARRATIVE) (Details) - USD ($)	3 Months Ended				6 Months Ended		12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Reduction in force	$ 187,000			$ 1,811,000	$ 391,000	$ 1,854,000
Facility exit charges	847,000				1,492,000	126,000
Customer Management Services [Member]
Reduction in force	187,000			$ 1,797,000	340,000	1,761,000
Facility exit charges	851,000				851,000	$ 42,000
Customer Management Services [Member] | Leasehold Improvements
Restructuring impairment losses	$ 0				$ 1,100,000
Connextions
Reduction in force							$ 400,000
Termination fee							600,000
Integration charges		$ 3,900,000	$ 5,600,000
Facility exit charges							$ 1,400,000
Connextions | Leasehold Improvements
Integration charges		$ 3,500,000