Stock-Based Compensation (Summary Of Stock Option Activity) (Details) (USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2012	Dec. 31, 2011
Stock-Based Compensation [Abstract]
Number of Shares, outstanding - beginning of year	535,333
Number of Shares, Granted	109,750
Number of Shares, Exercised	(56,000)
Number of Shares, Forfeited or expired	(126,510)
Number of Shares, outstanding - end of period	462,573	535,333
Number of Shares, exercisable - end of period	267,073
Weighted Average Exercise Price per Share, outstanding - beginning of year	$ 9.58
Weighted Average Exercise Price per Share, Granted	$ 5.29
Weighted Average Exercise Price per Share, Exercised	$ 2.17
Weighted Average Exercise Price per Share, Forfeited or expired	$ 10.93
Weighted Average Exercise Price per Share, outstanding - end of period	$ 9.08	$ 9.58
Weighted Average Exercise Price per Share, exercisable - end of period	$ 10.37
Weighted Average Remaining Contractual Term (in years), outstanding	4 years 8 months 12 days	4 years 1 month 6 days
Weighted Average Remaining Contractual Term (in years), Granted	8 years 2 months 12 days
Weighted Average Remaining Contractual Term (in years), Exercisable	2 years 6 months
Aggregate Intrinsic Value, Options outstanding	$ 2,730	$ 250,416
Aggregate Intrinsic Value, Options exercised	207,790
Aggregate Intrinsic Value, Options exercisable	$ 2,730