Stock Options and Award Programs (Details Textual) (USD $)	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term	3 years 3 months 18 days
Unamortized Compensation Expense	408,350
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value	238,720
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term	3 years 1 month 24 days	3 years 3 months 29 days
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term	2 years 2 months 12 days	2 years 9 months 22 days