Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 57,851	$ 30,029
Investments	14,081	11,960
Trade accounts receivable	89	24
Prepaid expenses and other	677	130
Total current assets	72,698	42,143
Property and equipment, net	2,270	1,047
Intellectual property, net	185	241
Total Assets	75,153	43,431
Current liabilities:
Accounts payable	1,102	540
Accrued liabilities	741	515
Deferred revenue and income	74	82
Capital lease obligation	146
Total current liabilities	2,063	1,137
Long-term deferred income	763	777
Long-term capital lease obligation	50
Total liabilities	2,876	1,914
Stockholders' equity:
Common stock, $0.001 par value; 55,000,000 shares authorized 44,583,092 (as of September 30, 2014) and 41,649,521 (as of December 31, 2013) shares issued and outstanding	45	42
Preferred stock, $0.001 par value; 5,000,000 shares authorized and none outstanding as of September 30, 2014 and December 31, 2013
Contributed capital	128,873	75,937
Accumulated deficit	(56,652)	(34,484)
Accumulated other comprehensive income	11	22
Total stockholders' equity	72,277	41,517
Total liabilities and stockholders' equity	$ 75,153	$ 43,431