Summary of Significant Accounting Policies (Details) (USD $)	2 Months Ended	12 Months Ended
	Feb. 24, 2012 ReportableSegments	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Overview and Summary of Significant Accounting Policies [Line Items]
Remaing maturity date in days for marketable securites to be classified as short-term investments		90 days
Cash and cash equivalents		$ 58,944,000	$ 75,326,000	$ 35,987,000	$ 60,895,000
Securities of a single issuer valued at cost maximum market value		5.00%
Securities Of Single Issuer Valued At Cost Maximum Market		1,000,000
Debt Instrument, Face Amount		50,000,000
Concentration Risk Threshold for Investment Securities for a Single Position		10.00%
Capitalized Computer Software, Additions		2,500,000	2,400,000
Capitalized Computer Software, Amortization		2,200,000	2,000,000	1,700,000
Goodwill		17,959,000	17,959,000	19,079,000
Impairment			1,120,000
Advertising Expense		800,000	900,000	700,000
Number of Previously Reportable Segments	2
Software Development [Member]
Overview and Summary of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life		3 years
Computer Equipment [Member]
Overview and Summary of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life		36 months
Software [Member]
Overview and Summary of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life		36 months
15 Percent [Member] | Customer Concentration Risk [Member] | Accounts Receivable [Member]
Overview and Summary of Significant Accounting Policies [Line Items]
Concentration Risk Clients at Benchmark			1
Concentration Risk, Percentage			15.00%
More Than 10 Percent [Member] | Customer Concentration Risk [Member] | Revenues [Member]
Overview and Summary of Significant Accounting Policies [Line Items]
Concentration Risk Clients at Benchmark		0
More Than 10 Percent [Member] | Customer Concentration Risk [Member] | Accounts Receivable [Member]
Overview and Summary of Significant Accounting Policies [Line Items]
Concentration Risk, Percentage		10.00%
Minimum [Member] | Office Equipment, Furniture and fixtures [Member]
Overview and Summary of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life		36 months
Maximum [Member]
Overview and Summary of Significant Accounting Policies [Line Items]
Maturity period of securities (in months)		24 months
Maximum [Member] | Office Equipment, Furniture and fixtures [Member]
Overview and Summary of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life		44 months
Caretools Inc. [Member]
Overview and Summary of Significant Accounting Policies [Line Items]
Goodwill		0	0	1,120,000
Impairment			$ 1,120,000
Series B Preferred Stock [Member]
Overview and Summary of Significant Accounting Policies [Line Items]
Preferred stock, dividend rate, percentage		8.00%