Shareholders' Equity 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
Earnings Per Share [Abstract]
Net Income (Loss) Attributable to Parent	$ 3,023	$ 2,722	$ 6,308	$ 5,693
Net Income (Loss) Available to Common Stockholders, Basic	3,023	2,722	6,308	5,693
Net Income (Loss) Available to Common Stockholders, Diluted	$ 3,023	$ 2,722	$ 6,308	$ 5,693
Weighted Average Number of Shares Outstanding, Basic	13,178,000	13,088,000	13,167,000	13,061,000
BASIC EARNINGS PER SHARE	$ 0.23	$ 0.21	$ 0.48	$ 0.44
Weighted Average Number Diluted Shares Outstanding Adjustment	90,000	147,000	97,000	164,000
Weighted Average Number of Shares Outstanding, Diluted	13,268,000	13,235,000	13,264,000	13,225,000
DILUTED EARNINGS PER SHARE	$ 0.23	$ 0.21	$ 0.48	$ 0.43
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	1,070,404	531,195	782,374	507,942