Segment Disclosure (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Revenue Information by product line [Abstract]
Revenues	$ 18,014	[1]	$ 29,064	[1]	$ 68,032	[1]	$ 110,219	[1]
Systems [Member]
Revenue Information by product line [Abstract]
Revenues	7,759		17,806		34,293		74,526
Sub-systems [Member]
Revenue Information by product line [Abstract]
Revenues	$ 10,255		$ 11,258		$ 33,739		$ 35,693

[1] Includes related party amounts of $2,523 and $1,768 for the three months ended September 30, 2013 and 2012, respectively, and $8,600 and $3,527 for the nine months ended September 30, 2013 and 2012, respectively. See Note 12 for additional information on related par