Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2014

Accounting Policies [Abstract]

Property, Plant and Equipment [Table Text Block]

The estimated useful lives of the assets are as follows:

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:

	2014		2013		2012
Cost of revenues	$	114,795	$	112,348	$	91,118
General & administrative		372,325		339,098		282,375
Marketing and selling		103,798		77,789		81,819
Research and development		17,727		9,069		2,855
Total stock compensation	$	608,645	$	538,304	$	458,167

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

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

	2014		2013		2012
Weighted average common shares outstanding, basic		5,355,367		5,299,060		5,260,320
Dilutive common equivalent shares		21,631		16,403		12,222
Weighted average common shares outstanding, assuming dilution		5,376,998		5,315,463		5,272,542