Inventories (Schedule of Inventories) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Inventories [Abstract]
Raw materials	$ 6,464	$ 5,210
Work in process	4,314	2,635
Finished goods	4,472	5,125
Provision for excess and obsolete inventory	(267)	(327)
Total inventories	$ 14,983	$ 12,643

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