Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 1,000	$ 1,000
Preferred stock, shares authorized	20,000	20,000
Preferred stock, shares issued	783	9,283
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	10,495,704	10,047,621
Common stock, shares outstanding	10,444,627	9,996,544
Treasury stock, shares	51,077	51,077