Note 3 - Fair Value of Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2012

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

	September 30, 2012		Quoted Prices in  Active Market for  Identical Assets  (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Money market funds	$	35,358	$	35,358	$	—	$	—
Option to purchase interest in affiliated company	$	—	$	—	$	—	$	—