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10. Subsequent event
6 Months Ended
Jun. 30, 2011
Subsequent Events [Text Block]
10. Subsequent event

On August 2, 2011, we entered into an agreement to acquire substantially all the assets of Printrex, Inc., a leading manufacturer of specialty printers primarily sold into the oil and gas exploration market, for $4,000,000 plus contingent consideration related to new products under development.  The acquisition is expected to close in the third quarter of 2011, subject to customary closing conditions.