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Inventories	9 Months Ended
	Sep. 30, 2013
Inventories [Abstract]
Inventory Disclosure [Text Block]	Inventories Inventories, representing work in process for costs incurred on projects at PCT that have not been completed, were $0.5 million and $1.1 million as of September 30, 2013 and December 31, 2012, respectively. The Company also has deferred revenue of approximately $0.7 million and $1.2 million of advance billings received as of September 30, 2013 and December 31, 2012, respectively, related to these contracts.

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