Consolidated Balance Sheets (Parentheticals) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Redeemable Preferred Stock, par value per share	$ 1	$ 1.00
Redeemable Preferred Stock, redemption value per share	$ 1,000	$ 1,000
Redeemable Preferred Stock, liquidation value per share	$ 1,000	$ 1,000
Redeemable Preferred Stock, shares authorized	23,000	23,000
Redeemable Preferred Stock, shares issued	10,665	11,096
Redeemable Preferred Stock, shares outstanding	10,665	11,096
Preferred Stock, par value per share	$ 1	$ 1
Preferred Stock, shares authorized	977,000	977,000
Preferred Stock, shares issued	0	0
Class A Common Stock [Member]
Common Stock, par value per share	$ 1	$ 1
Common Stock, shares authorized	7,000,000	7,000,000
Common Stock, shares issued	1,169,073	1,219,383
Common Stock, shares outstanding	1,169,073	1,219,383
Class B Common Stock [Member]
Common Stock, par value per share	$ 1	$ 1
Common Stock, shares authorized	40,000,000	40,000,000
Common Stock, shares issued	18,830,927	18,780,617
Common Stock, shares outstanding	6,218,051	6,208,118
Treasury Stock	12,612,876	12,572,499