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Note 6 - Available-for-Sale Investments (Tables)

9 Months Ended

Sep. 30, 2015

Investments, Debt and Equity Securities [Abstract]

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

	Amortized cost						Fair value
	September 30, 2015			December 31, 2014			September 30, 2015			December 31, 2014
Bonds, notes and other securities:
U.S. government and agencies	$	573		$	759		$	573		$	759
Total short-term investments	$	573		$	759		$	573		$	759
Asset-backed securities	$	39		$	42		$	35		$	38
Total long-term investments	$	39		$	42		$	35		$	38

Investments Classified by Contractual Maturity Date [Table Text Block]

Less than one year	$545
Due in 1-5 years	28
Due in 5-10 years
Due after 10 years (1)	35
Total	$608

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Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value.

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