Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 26,768	$ 20,321
Accounts receivable, net of allowance of $150	24,654	19,842
Deferred tax assets, net	1,196	1,175
Prepaid expenses and other current assets	1,053	936
Total current assets	53,671	42,274
Property and equipment, net	1,029	1,437
Intangible assets, net	480	956
Goodwill	12,049	12,049
Deferred tax assets, net	25,974	29,097
Other assets	210	254
Total assets	93,413	86,067
Current liabilities:
Accounts payable	315	680
Accrued liabilities	16,142	14,326
Deferred revenue	1,516	1,715
Total current liabilities	17,973	16,721
Other liabilities	411	760
Total liabilities	18,384	17,481
Commitments and contingencies (Note 12)
Stockholders' equity:
Preferred stock, $0.01 par value; 2,000 shares authorized, no shares issued or outstanding
Common stock, $0.01 par value; 48,000 shares authorized, 29,736 shares issued and 11,440 and 11,049 shares outstanding as of December 31, 2014 and 2013, respectively	297	297
Paid-in capital	210,989	211,852
Treasury stock, at cost, 18,296 and 18,687 shares at December 31, 2014 and 2013, respectively	(119,878)	(123,186)
Accumulated other comprehensive loss	(220)	(154)
Accumulated deficit	(16,159)	(20,223)
Total stockholders' equity	75,029	68,586
Total liabilities and stockholders' equity	$ 93,413	$ 86,067