CONDENSED STATEMENTS OF OPERATIONS - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
CONDENSED STATEMENTS OF OPERATIONS
Sales, net	$ 8,840,134	$ 9,482,866	$ 22,337,169	$ 22,376,912
Cost of sales
Cost of manufactured product	4,900,072	5,489,151	12,400,679	12,307,440
Royalty expense to shareholders	680,287	770,197	1,868,064	1,846,438
Total cost of sales	5,580,359	6,259,348	14,268,743	14,153,878
Gross profit	3,259,775	3,223,518	8,068,426	8,223,034
Operating expenses:
Sales and marketing	1,058,029	954,955	2,953,773	2,826,224
Research and development	117,939	125,780	389,712	409,764
General and administrative	2,165,246	2,342,165	6,306,085	7,321,847
Total operating expenses	3,341,214	3,422,900	9,649,570	10,557,835
Loss from operations	(81,439)	(199,382)	(1,581,144)	(2,334,801)
Litigation proceeds				7,724,826
Interest and other income	8,609	4,916	19,822	20,836
Interest expense, net	(51,994)	(58,316)	(158,327)	(165,269)
Net income (loss) before income taxes	(124,824)	(252,782)	(1,719,649)	5,245,592
Provision for income taxes	480	2,044	1,440	6,133
Net income (loss)	(125,304)	(254,826)	(1,721,089)	5,239,459
Preferred stock dividend requirements	(176,249)	(227,499)	(528,747)	(682,802)
Earnings (loss) applicable to common shareholders	$ (301,553)	$ (482,325)	$ (2,249,836)	$ 4,556,657
Basic earnings (loss) per share (in dollars per share)	$ (0.01)	$ (0.02)	$ (0.08)	$ 0.16
Diluted earnings (loss) per share (in dollars per share)	$ (0.01)	$ (0.02)	$ (0.08)	$ 0.15
Weighted average common shares outstanding:
Basic (in shares)	29,649,874	27,873,447	29,252,652	27,759,333
Diluted (in shares)	29,649,874	27,873,447	29,252,652	29,436,008