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Segment reporting and concentrations (Details 1) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Long - lived assets	$ 11,331	$ 8,105
United States [Member]
Long - lived assets	3,978	2,771
Philippines [Member]
Long - lived assets	1,424	1,878
India [Member]
Long - lived assets	4,926	2,494
Sri Lanka [Member]
Long - lived assets	931	876
Israel [Member]
Long - lived assets	72	86
Foreign Countries [Member]
Long - lived assets	$ 7,353	$ 5,334

X

- Definition

Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 131

-Paragraph 38

-Subparagraph b(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Name:	us-gaap_NoncurrentAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant