Property, Plant, and Equipment (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Land and land improvements	$ 883,563	$ 883,563
Building	9,905,967	9,899,291
Machinery and equipment	3,767,910	3,736,144
Office equipment	1,231,215	1,376,577
Computer equipment and software	2,666,150	2,911,778
Property, plant, and equipment	18,454,805	18,807,353
Less accumulated depreciation	11,343,033	11,385,406
Property, Plant and Equipment, Net	$ 7,111,772	$ 7,421,947