Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 1.25	$ 1.25
Common stock, shares authorized	6,000,000	6,000,000
Common stock, shares issued	3,542,000	3,014,000
Common stock, shares outstanding	3,542,000