Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Basic:
Net Income	$ 3,725	$ 3,625	$ 5,532	$ 6,255
Preferred Dividend	(51)	(51)	(103)	(103)
Earnings Applicable to Common Stock	3,674	3,574	5,429	6,152
Weighted-average number of basic shares outstanding, shares	15,716,000	15,598,000	15,704,000	15,587,000
Basic EPS	$ 0.23	$ 0.23	$ 0.35	$ 0.40
Diluted:
Earnings Applicable to Common Stock	3,674	3,574	5,429	6,152
$7.00 Series Preferred Dividend	24	24	49	49
$8.00 Series Preferred Dividend	14	14	28	28
Adjusted Earnings Applicable to Common Stock	$ 3,712	$ 3,612	$ 5,506	$ 6,229
Weighted-average number of basic shares outstanding, shares	15,716,000	15,598,000	15,704,000	15,587,000
Incremental common shares attributable to $7.00 series preferred shares, shares	167,000	167,000	167,000	167,000
Incremental common shares attributable to $8.00 series preferred shares, shares	96,000	96,000	96,000	96,000
Weighted-average diluted shares outstanding, shares	15,979,000	15,861,000	15,967,000	15,850,000
Diluted EPS	$ 0.23	$ 0.23	$ 0.35	$ 0.40