Note 10 - Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

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

	Estimated Useful Life (in months)		Gross		Accumulated Amortization			Net
As of June 30, 2014
Patent		57	$	2,700	$	(1,854	)	$	846
			$	2,700	$	(1,854	)	$	846
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	$	284
2015		562
	$	846