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SELECTED STATEMENTS OF OPERATIONS DATA (Narrative) ( Details) - item	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
SELECTED STATEMENTS OF OPERATIONS DATA [Abstract]
Number of reportable segments	1
Segment information and revenues from principal customers:
Number of customers exceeding threshold	2	3	2
Brazil [Member] | Revenues [Member] | Customers [Member]
Segment information and revenues from principal customers:
Single customer purchases percent of total revenues	14.30%	22.20%	10.70%
Philippines [Member] | Revenues [Member] | Customers [Member]
Segment information and revenues from principal customers:
Single customer purchases percent of total revenues	43.20%	14.90%	15.50%
Israel [Member] | Revenues [Member] | Customers [Member]
Segment information and revenues from principal customers:
Single customer purchases percent of total revenues		11.70%

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- Definition

Number of customers whose purchases, as a percent of total revenues, exceeded the threshold.

+ References

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6351-108592

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13531-108611

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6404-108592

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13537-108611

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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