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Research and Development Contracts in Progress (Details) (USD $)	Jun. 30, 2012	Dec. 31, 2011
Research And Development Contracts In Progress Details
Costs in excess of revenue - R&D contracts	$ 514,797	$ 91,880

Amount included in cost of uncompleted contracts in excess of related billings, or unbilled accounts receivable, which is expected to be collected within a year within one year (or one operating cycle, if longer) from the date of the balance sheet.

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