Property And Equipment (Details) (USD $)	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 30,018,608	$ 29,036,272	$ 29,243,398
Less accumulated depreciation	15,264,296	13,655,555	14,044,576
Total property and equipment	14,754,312	15,380,717	15,198,822
Depreciation expense	1,219,721	1,163,939
Land [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,178,160	1,178,160	1,178,160
Building And Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	11,713,436	11,555,313	11,633,077
Machinery And Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	15,099,413	14,374,318	14,697,024
Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	413,113	377,309	383,099
Vehicles [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,379,591	1,289,307	1,334,628
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 234,895	$ 261,865	$ 17,410