CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Revenues	$ 7,044,821	$ 6,432,442
Cost of revenues	3,249,039	2,945,171
Gross profit	3,795,782	3,487,271
Operating Expenses:
General & administrative	1,184,147	993,711
Marketing & selling	1,098,600	1,126,658
Research & development	344,983	164,710
Total Operating Expenses	2,627,730	2,285,079
Operating income	1,168,052	1,202,192
Other income	1,549	91,413
Net income before provision for income taxes	1,169,601	1,293,605
Provision for income taxes	413,442	471,260
Net income and comprehensive income	$ 756,159	$ 822,345
Basic net income per share (in dollars per share)	$ 0.14	$ 0.16
Diluted net income per share (in dollars per share)	$ 0.14	$ 0.16
Dividends declared per share (in dollars per share)	$ 0.15	$ 0.15
Weighted average common shares outstanding, basic (in shares)	5,317,836	5,272,647
Weighted average common shares outstanding, diluted (in shares)	5,371,418	5,292,686