CONDENSED CONSOLIDATED STATEMENTS OF CAPITAL STOCK AND LONG-TERM DEBT (Parenthetical) (USD $)	Mar. 31, 2012	Dec. 31, 2011
Common Stock, Par Value
Common Stock, Shares Authorized	40,000,000	40,000,000
Common Stock, Shares Outstanding	15,703,000	15,682,000
Preferred Stock, Par Value
Cumulative Preferred Stock
Preferred Stock, Par Value
Preferred Stock, Shares Authorized	134,000	134,000
Preferred Stock, Shares Outstanding	32,000	32,000
Convertible Preferred Stock $7.00 Series
Preferred Stock, Par Value
Preferred Stock, Shares Outstanding	14,000	14,000
Convertible Preferred Stock $8.00 Series
Preferred Stock, Par Value
Preferred Stock, Shares Outstanding	7,000	7,000
Nonredeemable Preferred Stock $7.00 Series
Preferred Stock, Par Value
Preferred Stock, Shares Outstanding	1,000	1,000
Nonredeemable Preferred Stock $4.75 Series
Preferred Stock, Par Value
Preferred Stock, Shares Outstanding	10,000	10,000