Note 4 - Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2013

Disclosure Text Block [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

	Fair Value Measurements at September 30, 2013 (1)				Fair Value Measurements at December 31, 2012 (1)
	Using Level 2		Total		Using Level 2		Total
Assets:
Available-for-sale securities	$	1,191	$	1,191	$	4,765	$	4,765
Total assets	$	1,191	$	1,191	$	4,765	$	4,765
Liabilities:
Derivative liability	$	114,658	$	114,658	$	29,000	$	29,000
Total liabilities	$	114,658	$	114,658	$	29,000	$	29,000