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Deferred Costs | 6 Months Ended
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Jun. 30, 2016
Inventories [Abstract] |
Deferred Costs | Deferred Costs Deferred costs, representing work in process for costs incurred on process development contracts that have not been completed, were $5.1 million and $2.9 million as of June 30, 2016 and December 31, 2015, respectively. The Company also has deferred revenue of approximately $6.3 million and $4.9 million of advance billings received as of June 30, 2016 and December 31, 2015, respectively, related to these contracts.

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