Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2016	Dec. 31, 2015
Consolidated Balance Sheets [Abstract]
Common Stock, Par or Stated Value Per Share	$ 1	$ 1
Common Stock, Shares Authorized	15,000,000	15,000,000
Common Stock, Shares, Issued	4,685,049	4,659,319
Common Stock, Shares, Outstanding	4,301,648	4,275,879
Capital stock, no par value	$ 0	$ 0
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	383,401	383,440