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Fair Value of Financial Instruments
6 Months Ended
Jun. 30, 2016
Fair Value Disclosures [Abstract]  
Fair Value Disclosures [Text Block]
Note - 4
Fair Value of Financial Instruments
 
The Company uses financial instruments in the normal course of its business. The carrying values of cash and cash equivalents and accrued expenses approximate fair value. The fair value of the Company’s investment in a privately held company is not readily available. The Company believes the fair value of this investment in a privately held company approximated its carrying value at June 30, 2016 and December 31, 2015.