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Note 4 - Marketable securities (Tables)

6 Months Ended

Jun. 30, 2013

Disclosure Text Block Supplement [Abstract]

Marketable Securities [Table Text Block]

		June 30, 2013
		Adjusted Cost				Unrealized Gains				Unrealized Losses				Fair Value
Equity instruments		$	50,097			$	9,355			$	(731	)		$	58,721
Preferred stock			22,769				987				-				23,756
Trust preferred securities			15,726				447				(84	)			16,089
Total		$	88,592			$	10,789			$	(815	)		$	98,566

		December 31, 2012
		Adjusted Cost				Unrealized Gains				Unrealized Losses				Fair Value
Equity instruments		$	46,842			$	4,307			$	(1,550	)		$	49,599
Preferred stock			20,418				1,068				-				21,486
Trust preferred securities			15,143				402				(12	)			15,533
Auction rate securities			1,150				-				-				1,150
Total		$	83,553			$	5,777			$	(1,562	)		$	87,768

- Definition

Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets.

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