Stock-Based Compensation (Summary Of Option Activity) (Details) (USD $)	6 Months Ended	12 Months Ended
	Jun. 30, 2012	Dec. 31, 2011
Stock-Based Compensation [Abstract]
Number of Shares, outstanding - beginning of year	535,333
Number of Shares, Granted	24,000
Number of Shares, Exercised	(45,000)
Number of Shares, Forfeited or expired	(51,000)
Number of Shares, outstanding - end of period	463,333	535,333
Number of Shares, exercisable - end of period	287,333
Weighted Average Exercise Price per Share, outstanding - beginning of year	$ 9.58
Weighted Average Exercise Price per Share, Granted	$ 6.22
Weighted Average Exercise Price per Share, Exercised	$ 1.94
Weighted Average Exercise Price per Share, Forfeited or expired	$ 10.43
Weighted Average Exercise Price per Share, outstanding - end of period	$ 10.04	$ 9.58
Weighted Average Exercise Price per Share, exercisable - end of period	$ 10.44
Weighted Average Remaining Contractual Term (in years), outstanding - beginning of year	4 years	4 years 1 month 6 days
Weighted Average Remaining Contractual Term (in years), Granted	3 years 9 months 18 days
Weighted Average Remaining Contractual Term (in years), outstanding - end of period	4 years	4 years 1 month 6 days
Weighted Average Remaining Contractual Term (in years), exercisable - end of period	2 years 4 months 24 days
Aggregate Intrinsic Value, outstanding - beginning of year	$ 250,416
Aggregate Intrinsic Value, Exercised	187,220
Aggregate Intrinsic Value, outstanding - end of period	25,383	250,416
Aggregate Intrinsic Value, exercisable - end of period	$ 25,383