Segment Information (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Revenue by country [Abstract]
Revenue	$ 1,734,100	$ 1,717,500	$ 4,915,600	$ 4,818,700
United States [Member]
Revenue by country [Abstract]
Revenue	668,800	721,700	1,980,100	1,941,800
Germany [Member]
Revenue by country [Abstract]
Revenue	181,000	82,400	533,300	173,900
Brazil [Member]
Revenue by country [Abstract]
Revenue	176,400	177,100	444,800	464,300
Other Countries [Member]
Revenue by country [Abstract]
Revenue	$ 707,900	$ 736,300	$ 1,957,400	$ 2,238,700