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Fair Value of Warrant Related to OEM Agreement (Tables)
12 Months Ended
Dec. 31, 2012
Fair Value Disclosures [Abstract]  
Fair Value, by Balance Sheet Grouping [Table Text Block]

The Company used the Black-Scholes option-pricing model to determine the fair value of the warrant granted to HP. The following assumptions were applied in determining the value:

Risk-free interest rate       3.1%
Expected term 4.5 years
Expected price volitility 47%
Dividend yield -
Weighted average grant date fair value $ 9.98