Note 10 - Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

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

	Useful Life				Accumulated
	(in months)		Gross		Amortization			Net
As of March 31, 2014
Patent		57	$	2,700	$	(1,711	)	$	989
			$	2,700	$	(1,711	)	$	989
As of December 31, 2013
Patent		57	$	2,700	$	(1,568	)	$	1,132
			$	2,700	$	(1,568	)	$	1,132

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

	Amount
Year
2014	$	427
2015		562
	$	989