Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Basic:
Net Income	$ 5,089	$ 4,728	$ 8,724	$ 7,897
Preferred Dividend	(36)	(36)	(72)	(79)
Earnings Applicable to Common Stock	$ 5,053	$ 4,692	$ 8,652	$ 7,818
Basic EPS (in dollars per share)	$ 0.31	$ 0.29	$ 0.54	$ 0.49
Weighted-average number of basic shares outstanding (in shares)	16,149	16,018	16,141	15,996
Diluted:
Adjusted Earnings Applicable to Common Stock	$ 5,076	$ 4,715	$ 8,698	$ 7,871
Diluted EPS (in dollars per share)	$ 0.31	$ 0.29	$ 0.53	$ 0.49
Weighted-average diluted shares outstanding (in shares)	16,305	16,199	16,297	16,190
Convertible Preferred Stock $7.00 Series [Member]
Diluted:
Preferred Dividend	$ 17	$ 17	$ 34	$ 41
Common Shares Attributable to Dilutive Effect of Conversion of Preferred Stock (in shares)	115	140	115	153
Convertible Preferred Stock $8.00 Series [Member]
Diluted:
Preferred Dividend	$ 6	$ 6	$ 12	$ 12
Common Shares Attributable to Dilutive Effect of Conversion of Preferred Stock (in shares)	41	41	41	41