Inventory (Details) (USD $)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Inventory Disclosure [Abstract]
Raw materials	$ 5,225,000		$ 4,862,000
Work in process	34,837,000		14,656,000
Finished goods	12,322,000		2,570,000
Deferred costs	10,908,000		6,550,000
Total Inventories	63,292,000		28,638,000
Inventory reserves	5,100,000		3,600,000
Inventory write-downs and reserves	$ 4,800,000	$ 8,600,000