Note 6 - Interest and Other Income (Expense) (Tables)

12 Months Ended

Dec. 31, 2013

Disclosure Text Block [Abstract]

Interest and Other Income [Table Text Block]

	Year Ended December 31,
	2013			2012
Interest income	$	49		$	158
Interest expense		(68	)		-
Increase (decrease) in fair value of warrant assets		(130	)		-
Decrease (increase) in fair value of warrant liability		(60	)		-
	$	(209	)	$	158