Condensed Consolidated Statements of Operations (USD $)	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Product sales	$ 329,746	$ 1,827,056
Cost of product sales	150,571	856,754
Gross profit from product sales	179,175	970,302
Gains on sale of rental assets		(34,728)
Retained royalties	12,403	10,610
Investment income	1,497
Other income	14,704	10,910
Total other revenue	28,604	56,248
Selling expenses	86,940	100,793
Personnel and consulting expenses	331,370	367,119
General and administrative expenses	552,378	516,637
Interest expense	9,513	9,616
Unrealized loss on derivative instrument	22,784	2,951
Total Expenses	1,002,985	997,116
Income (loss) before income taxes	(795,206)	29,434
Net income (loss)	$ (795,206)	$ 29,434
Basic income (loss) per share	$ (0.05)	$ 0.00
Basic weighted average number of common shares outstanding:	14,752,251	13,826,055
Diluted income (loss) per share	$ (0.05)	$ 0.00
Diluted weighted average number of common shares outstanding:	14,752,251	14,466,787