Note 6 - Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2015

Notes Tables

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

	December 31, 2015						December 31, 2014
(in thousands)	Level 1		Level 2		Level 3		Level 1		Level 2		Level 3
Financial Assets:
Cash and cash equivalents
Money market mutual fund	$	11,896	$	-	$	-	$	6,129	$	-	$	-
Total	$	11,896	$	-	$	-	$	6,129	$	-	$	-