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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2012
Accounting Policies [Abstract]  
Estimated useful lives of property and equipment
The useful lives of the property and equipment are as follows:

Computer equipment
36 months
Office equipment, furniture and fixtures
36 – 44 months
Software
36 months
Leasehold improvements
Shorter of useful life or lease term
The components of property and equipment, net as of December 31, 2012 and 2011 (in thousands) are as follows:
    
 
 
December 31,
 
 
2012
 
2011
Computer equipment and purchased software
 
$
9,100

 
$
9,955

Software developed for internal use
 
10,602

 
8,947

Furniture and fixtures
 
2,683

 
3,131

Leasehold improvements
 
2,185

 
2,112

 
 
24,570

 
24,145

Less: Accumulated depreciation and amortization
 
(16,717
)
 
(16,862
)
 
 
$
7,853

 
$
7,283
Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method
The following table sets forth the computation of basic and diluted net (loss) income per common share for the years ended
December 31, 2012, 2011 and 2010 (in thousands, except per share data):

 
 
Years Ended December 31,
 
 
2012
 
2011
 
2010
Numerator:
 
 
 
 
 
 
(Loss) income from continuing operations
 
$
(1,753
)
 
$
5,253

 
$
8,196

Loss from discontinued operations, net of tax
 
(1,666
)
 
(8,826
)
 
(4,393
)
Net (loss) income
 
(3,419
)
 
(3,573
)
 
3,803

Less: Accrued dividend on Series B mandatorily redeemable convertible preferred stock plus an 8% non-cumulative dividend on Series A and Series C mandatorily redeemable convertible preferred stock
 
—

 
294

 
3,523

Less: Allocation of net income to participating preferred shares
 
—

 
—

 
167

Numerator for basic calculation
 
(3,419
)

(3,867
)
 
113

Undistributed earnings re-allocated to common stockholders
 
—

 
—

 
13

Numerator for diluted calculation
 
$
(3,419
)
 
$
(3,867
)
 
$
126

Denominator:
 
 
 
 
 
 
Denominator for basic calculation, weighted average number of common shares outstanding
 
24,722

 
22,297

 
7,558

Dilutive effect of stock options, restricted stock units and warrants using the treasury stock method
 
—

 
1,578

 
1,587

Denominator for diluted calculation
 
24,722

 
23,875

 
9,145

Net (loss) income per share – basic
 
 
 
 
 
 
Continuing operations
 
$
(0.07
)
 
$
0.23

 
$
0.59

Discontinued operations, net of tax
 
(0.07
)
 
(0.40
)
 
(0.58
)
Net (loss) income per share attributable to common stockholders
 
$
(0.14
)
 
$
(0.17
)
 
$
0.01

Net (loss) income per share – diluted
 
 
 
 
 
 
Continuing operations
 
$
(0.07
)
 
$
0.23

 
$
0.59

Discontinued operations, net of tax
 
(0.07
)
 
(0.40
)
 
(0.58
)
Net (loss) income per share attributable to common stockholders
 
$
(0.14
)
 
$
(0.17
)
 
$
0.01
Schedule of antidilutive securities excluded from computation of earnings per share
For the years ended December 31, 2012, 2011 and 2010, the following securities were not included in the calculation of fully diluted shares outstanding as the effect would have been anti-dilutive (in thousands):
 
 
Years Ended December 31,
 
 
2012
 
2011
 
2010
Common stock warrants (1)
 
5

 
11

 
18

Outstanding unexercised options and restricted stock units
 
4,092

 
3,034

 
3,138

Mandatorily redeemable convertible preferred stock
 
—

 
972

 
13,142

Total outstanding
 
4,097

 
4,017

 
16,298

(1)    Series B preferred stock warrants were converted to common stock warrants upon the Company's IPO in 2011.
Schedule of Comprehensive Income (Loss)
Comprehensive (loss) income as of December 31, 2012, 2011 and 2010 consists of the following components, net of related tax effects (in thousands):
 
 
Years Ended December 31,
 
 
2012
 
2011
 
2010
Net (loss) income
 
$
(3,419
)
 
$
(3,573
)
 
$
3,803

Change in unrealized gain (loss) on available-for-sale securities, net of tax effect
 
1

 
(1
)
 
—

Comprehensive (loss) income
 
$
(3,418
)

$
(3,574
)

$
3,803