Consolidated Balance Sheets (Parenthetical) (USD $)	Jun. 30, 2011	Dec. 31, 2010
Consolidated Balance Sheets
Common Stock, Par or Stated Value Per Share	$ 1	$ 1
Common Stock, Shares Authorized	15,000,000	15,000,000
Common Stock, Shares, Issued	4,351,896	4,317,058
Common Stock, Shares, Outstanding	3,955,557	3,919,108
Capital Stock, No Par Value
Capital Stock, Shares Authorized	5,000,000	5,000,000
Capital Stock, Shares, Issued	0	0
Capital Stock, Shares, Outstanding	0	0
Treasury Stock, Shares	396,339	397,950