Deferred Revenue	12 Months Ended
Deferred Revenue	Dec. 31, 2011
Deferred Revenue Disclosure [Abstract]
Deferred Revenue Disclosure [Text Block]	8. Deferred Revenue Engineering development fees are recorded as deferred revenue until such time as the engineering services have been provided. As of December 31, 2011, we have $1.5 million of deferred license fee revenue related to a prepayment for future license fees from one customer and a total of $0.4 million of deferred engineering development fees from four customers. We are deferring the engineering development fee revenue until such time as the engineering work has been completed. We expect to complete all services under these contracts by the fourth quarter of 2012.

The entire disclosure for deferred revenues at the end of the reporting period, and description and amounts of significant changes that occurred during the reporting period. Deferred revenue is a liability as of the balance sheet date related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

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