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 9 Months Ended 3 Months Ended 9 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Jun. 30, 2011
Suttle [Member]
Sep. 30, 2011
Suttle [Member]
Sep. 30, 2012
Suttle [Member]
Sep. 30, 2012
Transition Networks [Member]
Sep. 30, 2011
Transition Networks [Member]
Goodwill [Line Items]                  
Goodwill, beginning balance     $ 5,990,571 $ 4,560,217   $ 1,271,986   $ 5,990,571 $ 3,288,231
Impairment loss 0 0 0 (1,271,986) (1,272,000) (1,271,986)      
Acquisition       2,702,340         2,702,340
Foreign currency translation     (31,803)         (31,803)  
Goodwill, ending balance 5,958,768 5,990,571 5,958,768 5,990,571       5,958,768 5,990,571
Gross goodwill 7,230,754   7,230,754       1,271,986 5,958,768  
Accumulated impairment loss (1,271,986)   (1,271,986)       (1,271,986)    
Balance at September 30, 2012 $ 5,958,768 $ 5,990,571 $ 5,958,768 $ 5,990,571       $ 5,958,768 $ 5,990,571