Stockholders' Notes Receivable

9 Months Ended

Sep. 30, 2015

Receivables [Abstract]

Loans, Notes, Trade and Other Receivables Disclosure [Text Block]

10. Stockholders’ Notes Receivable

In 2005 and 2006, certain of the Company’s stockholders and officers issued various promissory notes totaling $195,000 for the sale of common stock. The notes were full recourse and were collateralized by the shares of stock sold. The amended notes bore interest at 0.93%, effective October 1, 2012. The holders of these notes were granted an extension of maturity to October 1, 2016.

As of September 30, 2015 and December 31, 2014, $58,824 was outstanding.