Note 7 - Available-for-Sale Investments (Tables)

9 Months Ended

Sep. 30, 2014

Available For Sale Investments [Abstract]

Schedule of Available-for-sale Securities Reconciliation [Table Text Block]

	Amortized cost				Fair value
	September 30, 2014		December 31, 2013		September 30, 2014		December 31, 2013
Bonds, notes and other securities:
U.S. government and agencies	$	743	$	530	$	744	$	531
Equity securities	$	6			$	7
Total short-term investments	$	749	$	530	$	751	$	531
Asset-backed securities	$	43	$	46	$	38	$	38
Total long-term investments	$	43	$	46	$	38	$	38

Investments Classified by Contractual Maturity Date [Table Text Block]

Less than one year	$451
Due in 1-5 years	293
Due in 5-10 years
Due after 10 years (1)	38
Total	$782

Schedule of Fair Value and Gross Unrealized Losses of Investments by Category and Length of Time in Continuous Unrealized Loss Position [Table Text Block]

		September 30, 2014
		12 months or greater				Total
	Number of securities in a loss position	Fair value		Unrealized losses (1)		Fair value		Unrealized losses
Asset-backed securities	21	$	38	$	(4)	$	38	$	(4)
Total long-term investments	21	$	38	$	(4)	$	38	$	(4)

		December 31, 2013
		12 months or greater				Total
	Number of securities in a loss position	Fair value		Unrealized losses (1)		Fair value		Unrealized losses
Asset-backed securities	20	$	38	$	(8)	$	38	$	(8)
Total long-term investments	20	$	38	$	(8)	$	38	$	(8)