Inventories

3 Months Ended

Mar. 31, 2014

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 $1.5 million and $1.3 million as of March 31, 2014 and December 31, 2013, respectively. The Company also has deferred revenue of approximately $1.6 million and $1.5 million of advance billings received as of March 31, 2014 and December 31, 2013, respectively, related to these contracts.