Balance Sheet Information (Details 2) (USD $)	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2012	Dec. 31, 2013	Dec. 31, 2011
Restricted Cash
Restricted cash	$ 852,000	$ 852,000		$ 577,000
Accounts Receivable, Net
Allowance for doubtful accounts receivable (in dollars)	500,000	500,000		500,000
Inventories
Materials	44,475,000	44,475,000		57,169,000
Work in process	23,780,000	23,780,000		20,118,000
Finished goods	6,105,000	6,105,000		36,147,000
Inventories	74,360,000	74,360,000		113,434,000
Additional cost method investment	10,300,000	10,341,000	1,600,000
Percentage ownership of preferred shares	15.30%	15.30%
Percentage ownership of cost method investee	12.00%	12.00%
Total recorded investment	14,500,000	14,500,000		4,200,000
Collateral for Bank Guarantees
Restricted Cash
Restricted cash	$ 900,000	$ 900,000		$ 600,000