Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2015

Accounting Policies [Abstract]

Property, Plant and Equipment [Table Text Block]

The estimated useful lives of the assets are:

Computer software	3 to  5 years
Office furniture and equipment	3 to 7 years
Laboratory equipment	5 to 7 years
Leasehold improvements	Lesser of estimated useful life or estimated lease term

Schedule Of Stock Based Compensation Expense [Table Text Block]

Stock compensation expense by income statement account is as follows:

	2015		2014		2013
Cost of revenues	$	100,887	$	114,795	$	112,348
General & administrative		433,362		372,325		339,098
Marketing and selling		107,853		103,798		77,789
Research and development		31,753		17,727		9,069
Total stock compensation	$	673,855	$	608,645	$	538,304

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

Basic and diluted weighted average common shares outstanding are as follows:

	2015		2014		2013
Weighted average common shares outstanding, basic		5,405,032		5,355,367		5,299,060
Dilutive common equivalent shares		7,455		21,631		16,403
Weighted average common shares outstanding, assuming dilution		5,412,487		5,376,998		5,315,463