Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Revenues:
Product sales	$ 5,586	$ 3,740
Research and development revenues	2,001	3,534
Revenue sharing arrangement	384	722
Total revenues	7,971	7,996
Costs and operating expenses:
Cost of product sales	3,002	2,489
Research and development	5,839	5,686
Selling, general and administrative	6,606	6,802
Total costs and operating expenses	15,447	14,977
Loss from operations	(7,476)	(6,981)
Interest income	18	15
Other income, net	22	3
Loss before income taxes	(7,436)	(6,963)
Provision for income taxes	24	11
Net loss	$ (7,460)	$ (6,974)
Net loss per share, basic and diluted (usd per share)	$ (0.18)	$ (0.17)
Weighted average common stock shares used in computing net loss per share, basic and diluted (shares)	41,250	40,072

Total costs related to goods produced and sold during the reporting period.

Name:	us-gaap_CostOfGoodsSold
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References

No definition available.