Inventory (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Inventory Disclosure [Abstract]
Raw materials	$ 5,380,000		$ 5,380,000		$ 4,862,000
Work in process	34,580,000		34,580,000		14,656,000
Finished goods	10,429,000		10,429,000		2,570,000
Deferred costs	6,770,000		6,770,000		6,550,000
Total Inventories	57,159,000		57,159,000		28,638,000
Inventory reserves	6,200,000		6,200,000		3,600,000
Inventory write-downs and reserves	$ 1,700,000	$ 6,500,000	$ 4,900,000	$ 8,400,000