Stock Based Compensation, Stock Option Activity (Details) - Stock Options [Member] - $ / shares	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Options outstanding [Roll Forward]
Outstanding at beginning of period (in shares)	83,861	99,810
Granted (in shares)	0	0
Exercised (in shares)	0	0
Expired (in shares)	(6,400)	(2,500)
Outstanding at end of period (in shares)	77,461	97,310
Exercisable at end of period (in shares)	74,962	86,762
Weighted average exercise price [Roll forward]
Outstanding at beginning of period (in dollars per share)	$ 12.39	$ 12.16
Granted (in dollars per shares)	0.00	0.00
Exercised (in dollars per share)	0.00	0.00
Expired (in dollars per share)	18.95	9.00
Outstanding at end of period (in dollars per share)	11.85	12.24
Exercisable at end of period (in dollars per share)	$ 11.82	$ 12.24