CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Jun. 30, 2017	Dec. 31, 2016
CONSOLIDATED BALANCE SHEETS
Common stock, par value	$ 1.00	$ 1.00
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	10,709,597	10,456,098
Common stock, shares outstanding	10,709,597	10,626,290