Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.3-4)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 3

-Subparagraph a(1)

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

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-Section 02

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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=6927468&loc=d3e6351-108592

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-Name Accounting Standards Codification

-Topic 825

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-Section 50

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-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13537-108611

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-Name Accounting Standards Codification

-Topic 275

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- Definition

Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

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-Name Regulation S-X (SX)

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CONCENTRATION OF RISK - Revenues and Accounts Receivable (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Concentration Risk [Line Items]
Revenue	$ 14,976	$ 12,620
Accounts receivable	10,527		8,657
Total Revenue [Member] \| Customer Concentration Risk [Member] \| Major Customer A [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	42.00%	42.00%
Total Revenue [Member] \| Customer Concentration Risk [Member] \| Major Customer B [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	21.00%	12.00%
Total Revenue [Member] \| Customer Concentration Risk [Member] \| Major Customer C [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	19.00%	13.00%
Total Revenue [Member] \| Government Contracts Concentration Risk [Member]
Concentration Risk [Line Items]
Revenue	629	1,200
Concentration risk, percentage	4.00%	9.00%
Total Revenue [Member] \| Geographic Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	95.00%	90.00%
Accounts Receivable [Member] \| Customer Concentration Risk [Member] \| Major Customer A [Member]
Concentration Risk [Line Items]
Accounts receivable	4,829
Accounts Receivable [Member] \| Customer Concentration Risk [Member] \| Major Customer B [Member]
Concentration Risk [Line Items]
Accounts receivable	1,260
Accounts Receivable [Member] \| Customer Concentration Risk [Member] \| Major Customer C [Member]
Concentration Risk [Line Items]
Accounts receivable	$ 2,822