DEFERRED COSTS AND REVENUES (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015
DEFERRED COSTS AND REVENUES [Abstract]
Costs incurred to fulfill obligations	$ 3,500	$ 4,300

Access and network costs incurred and directly related to generating renewal license revenues.

No definition available.

Name:	CALL_CostsIncurredToFulfillServiceObligations
Namespace Prefix:	CALL_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration