Revenue Recognition (Revenue 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]
Entity Wide Revenue Major Customer Number	2
Allowance for Uncollectable Receivables	$ (190)	$ (376)
Accounts Receivable, Net	2,804	3,592	2,432
Provision for refunds	(41)	(50)
Revenue, Net	7,605	9,401
Sales Revenue
Concentration Risk [Line Items]
% of Total Revenue	100.00%	100.00%
Sales Revenue \| Provision for refunds
Concentration Risk [Line Items]
% of Total Revenue	(1.00%)	(1.00%)
Customer Concentration Risk \| Material Client Relationship
Concentration Risk [Line Items]
Accounts Receivable, Gross	951	1,211
Revenue, Gross	2,357	2,903
Customer Concentration Risk \| MultiPlan, Inc.
Concentration Risk [Line Items]
Accounts Receivable, Gross	41	369
Revenue, Gross	304	1,024
Customer Concentration Risk \| All Others
Concentration Risk [Line Items]
Accounts Receivable, Gross	2,002	2,388
Revenue, Gross	$ 4,985	$ 5,524
Customer Concentration Risk \| Sales Revenue \| Material Client Relationship
Concentration Risk [Line Items]
% of Total Revenue	31.00%	31.00%
Customer Concentration Risk \| Sales Revenue \| MultiPlan, Inc.
Concentration Risk [Line Items]
% of Total Revenue	4.00%	11.00%
Customer Concentration Risk \| Sales Revenue \| All Others
Concentration Risk [Line Items]
% of Total Revenue	66.00%	59.00%

Entity Wide Revenue Major Customer Number

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- Definition

Revenue, Gross

+ References

No definition available.

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- Definition

Amounts 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.

+ References

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)

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-Publisher SEC

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-Number 210

-Section 03

-Paragraph 3

-Subparagraph a, b

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- Definition

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.

+ References

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

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-SubTopic 10

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-Number 210

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-Paragraph 4

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- Definition

For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 4

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-Topic 942

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-Paragraph 1

-Subparagraph (SX 210.9-03.10)

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- Definition

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.

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- Definition

The aggregate selling price reductions recognized during an accounting period due to the rendering of deficient or nonconforming services. Allowances are a deduction from gross revenue in arriving at net revenue.

+ References

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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