Stockholders' Equity (Details) (USD $)	12 Months Ended			12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Sep. 17, 2010	Dec. 31, 2012 Minimum [Member]	Dec. 31, 2012 Maximum [Member]	Dec. 31, 2012 Cost of revenues [Member]	Dec. 31, 2011 Cost of revenues [Member]	Dec. 31, 2012 Sales and marketing [Member]	Dec. 31, 2011 Sales and marketing [Member]	Dec. 31, 2012 Technology support [Member]	Dec. 31, 2011 Technology support [Member]	Dec. 31, 2012 General and administrative [Member]	Dec. 31, 2011 General and administrative [Member]	Dec. 31, 2012 Stock Options [Member]	Dec. 31, 2011 Stock Options [Member]	Dec. 31, 2012 Service-Based Options [Member]	Dec. 31, 2011 Service-Based Options [Member]	Dec. 31, 2012 Performance-Based Options [Member]	Dec. 31, 2011 Performance-Based Options [Member]	Dec. 31, 2012 Market Condition Options [Member]	Dec. 31, 2011 Market Condition Options [Member]	Dec. 31, 2009 Market Condition Options [Member]	Sep. 17, 2010 Warrant [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate shares of common stock reserved for future issuance (in shares)	3,562,189													500,000
Share-based compensation expense						$ 46,000	$ 34,000	$ 225,000	$ 358,000	$ 288,000	$ 332,000	$ 356,000	$ 308,000
Amount capitalized to internal use software	5,000	10,000
Total share-based compensation expense	910,000	1,022,000
Unrecognized compensation expense	800,000	1,400,000
Weighted average period for recognition of unrecognized compensation expense	1 year 6 months
Contractual term of options				7 Years	10 Years
Vesting Period	3 years
Weighted average grant date fair value (in dollars per share)														$ 2.37	$ 3.04	$ 2.31	$ 3.09	$ 2.39	$ 2.98			$ 0.97
Weighted average assumptions [Abstract]
Expected volatility (in hundredths)	84.00%	84.00%
Expected risk-free interest rate (in hundredths)	0.60%	1.40%
Expected life (years)	4 years 2 months 12 days	4 years 2 months 3 days
Number of Options [Roll Forward]
Outstanding at December 31, 2011 (in shares)	1,547,544
Granted (in shares)														330,099		80,900	242,935	249,199	255,407			213,650
Exercised (in shares)														(10,982)	86,644					9,206	8,183
Forfeited or expired (in shares)	(307,322)
Outstanding at December 31, 2012 (in shares)	1,559,339	1,547,544
Vested and expected to vest at December 31, 2012 (in shares)	1,529,929
Exercisable at December 31, 2012 (in shares)	1,130,140
Weighted Average Exercise Price per Share [Roll Forward]
Outstanding at December 31, 2011 (in dollars per share)	$ 6.46
Granted (in dollars per share)														$ 3.88				$ 3.90	$ 4.83			$ 1.75
Exercised (in dollars per share)														$ 1.97	$ 3.99
Forfeited or expired (in dollars per share)	$ 5.59
Outstanding at December 31, 2012 (in dollars per share)	$ 6.12	$ 6.46
Vested and expected to vest at December 31, 2012 (in dollars per share)	$ 6.15
Exercisable at December 31, 2012 (in dollars per share)	$ 6.83
Weighted Average Remaining Contractual Term [Roll Forward]
Outstanding	5 years 7 months 6 days	6 years 3 months 18 days
Vested and expected to vest at December 31, 2012	5 years 7 months 6 days
Exercisable at December 31, 2012	5 years 6 months
Aggregate Intrinsic Value [Roll Forward]
Outstanding	766,000
Vested and expected to vest at December 31, 2012	764,000
Exercisable at December 31, 2012	732,000
Number of vesting requirements and conditions for options	2	2
Number of options vested based on revenues and EBITDA (in shares)																		161,394	145,333
Total intrinsic value of options exercised	21,000	165,000
Number of rights to purchase each share of common stock (in shares)	5
Number of Series A Participating Preferred Stock to be purchased on entitlement of right	one one-hundredth
Price of Series A Junior Participating Preferred Stock (in dollars per share)	$ 8.00																						$ 4.65
Percentage of ownership to trigger rights (in hundredths)	4.90%
Warrants to purchase common stock (in shares)			400,000
Exercise price of warrants (in dollars per share)	$ 8.00																						$ 4.65
Fair value of warrant (in dollars per share)																							$ 3.15
Warrant to purchase 2,000,000 shares of Company Common Stock			$ 1,260,000
Shares of common stock reserved for future issuance [Abstract]
Stock options outstanding (in shares)	1,559,339	1,547,544
Authorized (in shares)	527,582
Reserved for future issuance (in shares)	3,562,189													500,000