Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 33,167	$ 14,380
Short-term investments	33,990	42,981
Accounts and other receivables (net of allowances for doubtful accounts of $22 and $28)	1,503	3,021
Deferred income taxes	2,921	9,377
Prepaid expenses and other current assets	3,022	845
Total current assets	74,603	70,604
Property and equipment, net	4,778	1,207
Deferred income tax assets	21,458	25,419
Prepaid income taxes	7,495	0
Intangibles and other assets, net	269	291
Total assets	108,603	97,521
Current liabilities:
Accounts payable	1,539	669
Accrued compensation	3,631	1,906
Other current liabilities	1,639	2,225
Deferred revenue	12,664	7,779
Total current liabilities	19,473	12,579
Long-term deferred revenue	3,983	7,827
Other long-term liabilities	752	512
Total liabilities	$ 24,208	$ 20,918
Contingencies
Stockholders’ equity:
Common stock and additional paid-in capital — $0.001 par value; 100,000,000 shares authorized; 34,795,372 and 34,225,778 shares issued, respectively; 28,284,981 and 27,715,387 shares outstanding, respectively	$ 210,939	$ 204,876
Accumulated other comprehensive income	111	102
Accumulated deficit	(81,086)	(82,806)
Treasury stock at cost: 6,510,391 shares	(45,569)	(45,569)
Total stockholders’ equity	84,395	76,603
Total liabilities and stockholders’ equity	$ 108,603	$ 97,521