Note 17 - Patents and Other Intangibles (Tables)

9 Months Ended

Sep. 30, 2012

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	September 30, 2012							December 31, 2011
	Cost		Accumulated Amortization			Net		Cost		Accumulated Amortization			Net
Patents	$	1,707,425	$	(466,239	)	$	1,241,186	$	1,179,883	$	(377,073	)	$	802,810
Deferred Patents		754,317		--			754,317		1,217,648		--			1,217,648
Trademarks		--		--			--		144,226		(144,226	)		--
	$	2,461,742	$	(466,239	)	$	1,995,503	$	2,541,757	$	(521,299	)	$	2,020,458

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

2012	$	30,000
2013		132,000
2014		132,000
2015		131,000
2016		129,000
	$	554,000