UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 30, 2017	Dec. 31, 2016
Shareholders' Equity
Preferred Stock, Par Value	$ 1	$ 1
Preferred Stock, Authorized	4,998,130	4,998,130
Preferred Stock, Issued	0	0
Preferred Stock, Outstanding	0	0
Common Stock, No Par Value	$ 0	$ 0
Common Stock, Authorized	75,000,000	75,000,000
Common Stock, Issued	21,868,887	23,587,126
Common Stock, Outstanding	21,868,887	23,587,126
Series A Preferred Stock [Member]
Shareholders' Equity
Preferred Stock, Par Value	$ 1	$ 1
Preferred Stock, Authorized	5,000,000	5,000,000
Preferred Stock, Issued	0	0
Preferred Stock, Outstanding	0	0
Series B Preferred Stock [Member]
Shareholders' Equity
Preferred Stock, Par Value	$ 1	$ 1
Preferred Stock, Authorized	1,870	1,870
Preferred Stock, Issued	0	0
Preferred Stock, Outstanding	0	0