Quarterly financial information (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2012

Quarterly Financial Information Tables

Selected Quarterly Financial Data (Unaudited) (Tables)

The following table presents our unaudited quarterly financial information for the years ending December 31, 2012 and 2011 (in thousands, except per share data):

		Year Ended December 31, 2012
		December 31,		September 30,		June 30,		March 31,
Revenue	$	2,727	$	2,613	$	1,295	$	1,730
Gross margin (loss)		1,238		1,475		1,328		(2,600)
Net loss		(4,074)		(3,845)		(4,971)		(9,803)
Net loss per share basic and diluted		(0.16)		(0.15)		(0.26)		(0.58)
		Year Ended December 31, 2011
		December 31,		September 30,		June 30,		March 31,
Revenue	$	1,504	$	1,839	$	1,155	$	1,119
Gross margin (loss)		(2,922)		(881)		(2,225)		(1,420)
Net loss		(9,806)		(7,790)		(9,175)		(9,037)
Net loss per share basic and diluted		(0.62)		(0.57)		(0.69)		(0.70)