Quarterly report pursuant to Section 13 or 15(d)

Goodwill And Other Intangible Assets (Schedule Of Changes In Carrying Value Of Goodwill) (Details)

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Goodwill And Other Intangible Assets (Schedule Of Changes In Carrying Value Of Goodwill) (Details) (USD $)
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Dec. 31, 2011
Goodwill [Line Items]      
Goodwill, beginning balance $ 5,956,934 $ 5,990,571 $ 5,990,571
Foreign currency translation (159,263)    
Goodwill, ending balance 5,797,671 5,990,571 5,990,571
Gross goodwill 7,069,657    
Accumulated impairment loss (1,271,986)    
Balance at March 31, 2013 5,797,671 5,990,571 5,990,571
Suttle [Member]
     
Goodwill [Line Items]      
Gross goodwill 1,271,986    
Accumulated impairment loss (1,271,986)    
Transition Networks [Member]
     
Goodwill [Line Items]      
Goodwill, beginning balance 5,956,934 5,990,571 5,990,571
Foreign currency translation (159,263)    
Goodwill, ending balance 5,797,671 5,990,571 5,990,571
Gross goodwill 5,797,671    
Balance at March 31, 2013 $ 5,797,671 $ 5,990,571 $ 5,990,571