Business Segments (Details 2) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Long-lived assets
United States	$ 3,699,258	$ 2,896,793	$ 2,660,156
Foreign countries	1,651,052	277,955	182,799
Consolidated total assets	5,350,310	3,174,748	2,842,955
Sales
Domestic	17,973,487	16,297,487	13,806,660
Foreign	31,967,038	21,063,380	17,741,969
Total sales	49,940,525	37,360,867	31,548,629
Germany
Long-lived assets
Foreign countries	333,662	277,955	182,799
Denmark
Long-lived assets
Foreign countries	943,507
Other European countries
Long-lived assets
Foreign countries	373,883
Sales
Foreign	18,744,215	8,654,088	7,148,879
Asia
Sales
Foreign	9,591,071	8,237,348	8,482,788
Other
Sales
Foreign	$ 3,631,752	$ 4,171,944	$ 2,110,302