CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Dec. 31, 2011	Dec. 31, 2010
Redeemable preferred stock, par value	$ 0.60	$ 0.60
Redeemable preferred stock, Authorized	200,000	200,000
Redeemable preferred stock, issued	22,427	16,784
Redeemable preferred stock, outstanding	22,427	16,784
Common Class A
Common stock, par value	$ 0.60	$ 0.60
Common stock, Authorized	24,655,000	24,655,000
Common stock, issued	14,568,696	14,555,393
Common stock, outstanding	14,568,696	14,555,393
Common Class B
Common stock, par value	$ 0.60	$ 0.60
Common stock, Authorized	145,000	145,000
Common stock, issued
Common stock, outstanding