DISCONTINUED OPERATIONS (Detail Textuals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Restructuring Cost and Reserve [Line Items]
Estimated shutdown cost		$ 2,900
Asset write-offs		48
DSL Service Assurance | Discontinued Operations
Restructuring Cost and Reserve [Line Items]
Payment for severance cost	$ 100
Employee Severance And Retention Bonus | DSL Service Assurance | Discontinued Operations
Restructuring Cost and Reserve [Line Items]
Severance and employee related costs		300
Contract Termination | DSL Service Assurance | Discontinued Operations
Restructuring Cost and Reserve [Line Items]
Deferred revenue obligations		1,200
Payments/write-offs		$ 3,700