Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Accounting Policies [Abstract]

Schedule Of Stock Based Compensation Expense [Table Text Block]

Stock compensation expense by income statement account is as follows:

	2012		2011		2010
Cost of revenues	$	91,118	$	85,731	$	83,286
General & administrative		282,375		266,915		258,916
Marketing and selling		81,819		65,431		52,770
Research and development		2,855		—		—
Total stock compensation	$	458,167	$	418,077	$	394,972

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

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

	2012		2011		2010
Weighted average common shares outstanding		5,260,320		5,229,646		5,207,244
Dilutive common equivalent shares		12,222		6,294		19,210
Weighted average common shares outstanding, assuming dilution		5,272,542		5,235,940		5,226,454