Consolidated Statements Of Operations (USD $) In Thousands, except Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Consolidated Statements Of Operations
Revenue	$ 43,028	$ 15,787	$ 80,998	$ 27,303
Cost of goods sold	15,828	8,562	29,823	15,925
Gross profit	27,200	7,225	51,175	11,378
Operating expenses:
General and administrative	3,056	2,436	5,977	4,577
Sales and marketing	388	306	765	563
Research and development	410	234	837	446
Loss on disposal of assets	7	305	7	305
Income from operations	23,339	3,944	43,589	5,487
Other income:
Interest income	64	56	151	153
Realized loss on foreign currency translation		(19)	(6)	(59)
Realized gain (loss) on investments		(7)		8
Total other income (expense)	64	30	145	102
Income before income taxes	23,403	3,974	43,734	5,589
Income tax expense	13,495	86	14,722	126
Net income	$ 9,908	$ 3,888	$ 29,012	$ 5,463
Net income per common share
Basic	$ 0.43	$ 0.19	$ 1.26	$ 0.27
Diluted	$ 0.41	$ 0.18	$ 1.21	$ 0.25
Weighted average common shares outstanding used in computing net income per common share
Basic	23,031,039	20,790,208	23,012,326	20,517,277
Diluted	23,928,408	21,912,520	23,936,026	21,675,190