Stock Based Compensation, Stock Option Activity (Details) - Stock Options [Member] - $ / shares	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Options outstanding [Roll Forward]
Outstanding at beginning of period (in shares)	99,810	104,966
Granted (in shares)	0	0
Exercised (in shares)	(13,449)	0
Expired (in shares)	(2,500)	(5,156)
Outstanding at end of period (in shares)	83,861	99,810
Exercisable at end of period (in shares)	75,072	78,705
Weighted average exercise price [Roll forward]
Outstanding at beginning of period (in dollars per share)	$ 12.16	$ 12.43
Granted (in dollars per shares)	0.00	0.00
Exercised (in dollars per share)	11.31	0.00
Expired (in dollars per share)	9.00	17.66
Outstanding at end of period (in dollars per share)	12.39	12.16
Exercisable at end of period (in dollars per share)	$ 12.40	$ 12.17