Goodwill And Other Intangible Assets (Schedule Of Changes In Carrying Value Of Goodwill) (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Goodwill [Line Items]
Goodwill, beginning balance	$ 5,990,571	$ 4,560,217
Impairment loss		(1,271,986)
Acquisition		2,702,340
Foreign currency translation	(33,637)
Goodwill, ending balance	5,956,934	5,990,571
Gross goodwill	7,228,920
Accumulated impairment loss	(1,271,986)
Balance at December 31, 2012	5,956,934	5,990,571
Suttle [Member]
Goodwill [Line Items]
Goodwill, beginning balance		1,271,986
Impairment loss		(1,271,986)
Gross goodwill	1,271,986
Accumulated impairment loss	(1,271,986)
Transition Networks [Member]
Goodwill [Line Items]
Goodwill, beginning balance	5,990,571	3,288,231
Acquisition		2,702,340
Foreign currency translation	(33,637)
Goodwill, ending balance	5,956,934	5,990,571
Gross goodwill	5,956,934
Balance at December 31, 2012	$ 5,956,934	$ 5,990,571