11. Stock Option Plan (Options Outstanding And Exercisable) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
Options Outstanding, # of shares	193,050
Options Outstanding, WAEP	$ 19.14
Options Outstanding, Aggregate Intrinsic Value	$ 81
Options Exercisable, # of shares	190,450
Options Exercisable, WAEP	$ 19.35
Options Exercisable, Aggregate Intrinsic Value	68
Range Of Exercise Price Two Dollar And Fifty Four Cent To Six Dollar [Member]
Range of exercise price, Lower	$ 2.54
Range of exercise price, Upper	$ 6.00
Options Outstanding, # of shares	19,550
Options Outstanding, WAEP	$ 4.86
Options Outstanding, Wted. Avg. Remaining Contractual Life (yrs)	3 years 6 months
Options Outstanding, Aggregate Intrinsic Value	74
Options Exercisable, # of shares	17,550
Options Exercisable, WAEP	$ 5.13
Options Exercisable, Aggregate Intrinsic Value	62
Range Of Exercise Price Six Dollar And One Cent To Ten Dollar [Member]
Range of exercise price, Lower	$ 6.01
Range of exercise price, Upper	$ 10.00
Options Outstanding, # of shares	28,200
Options Outstanding, WAEP	$ 9.14
Options Outstanding, Wted. Avg. Remaining Contractual Life (yrs)	2 years 10 months 21 days
Options Outstanding, Aggregate Intrinsic Value	7
Options Exercisable, # of shares	27,600
Options Exercisable, WAEP	$ 9.20
Options Exercisable, Aggregate Intrinsic Value	6
Range Of Exercise Price Ten Dollar And One Cent To Seventeen Dollar And Fifty Cent [Member]
Range of exercise price, Lower	$ 10.01
Range of exercise price, Upper	$ 17.50
Options Outstanding, # of shares	2,300
Options Outstanding, WAEP	$ 17.43
Options Outstanding, Wted. Avg. Remaining Contractual Life (yrs)	5 months 1 day
Options Outstanding, Aggregate Intrinsic Value
Options Exercisable, # of shares	2,300
Options Exercisable, WAEP	$ 17.43
Options Exercisable, Aggregate Intrinsic Value
Range Of Exercise Price Seventeen Dollar And Fifty One Cent To Twenty Dollar [Member]
Range of exercise price, Lower	$ 17.51
Range of exercise price, Upper	$ 20.00
Options Outstanding, # of shares	38,500
Options Outstanding, WAEP	$ 17.80
Options Outstanding, Wted. Avg. Remaining Contractual Life (yrs)	3 years 3 months
Options Outstanding, Aggregate Intrinsic Value
Options Exercisable, # of shares	38,500
Options Exercisable, WAEP	$ 17.80
Options Exercisable, Aggregate Intrinsic Value
Range Of Exercise Price Twenty Dollar And One Cent To Twenty Five Dollar And Ninety Three Cent [Member]
Range of exercise price, Lower	$ 20.01
Range of exercise price, Upper	$ 25.93
Options Outstanding, # of shares	104,500
Options Outstanding, WAEP	$ 25.04
Options Outstanding, Wted. Avg. Remaining Contractual Life (yrs)	2 years 11 months 27 days
Options Outstanding, Aggregate Intrinsic Value
Options Exercisable, # of shares	104,500
Options Exercisable, WAEP	$ 25.04
Options Exercisable, Aggregate Intrinsic Value