Note 12 - Marketable Securities (Tables)

12 Months Ended

Dec. 31, 2012

Marketable Securities [Table Text Block]

	December 31, 2012
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
Available-for-sale:
Equity securities	$	14,205	$	19,223	$	-	$	33,428
Held-to-maturity:
Other debt securities		3,113		284		-		3,397
Totalmarketable securities	$	17,318	$	19,507	$	-	$	36,825

	December 31, 2011
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Available-for-sale:
Equity securities	$	14,253	$	16,210	$	(1	)	$	30,462
Held-to-maturity:
Other debt securities		3,078		378		(10	)		3,446
Totalmarketable securities	$	17,331	$	16,588	$	(11	)	$	33,908