Annual report pursuant to Section 13 and 15(d)

Goodwill And Intangible Assets (Schedule Of Changes In Carrying Amount Of Goodwill - Impaired, Accumulated Impairment Loss) (Details)

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Goodwill And Intangible Assets (Schedule Of Changes In Carrying Amount Of Goodwill - Impaired, Accumulated Impairment Loss) (Details) - USD ($)
Dec. 31, 2017
Dec. 31, 2016
Goodwill [Line Items]    
Balance at December 31, 2017   $ 1,462,503
JDL Technologies [Member]    
Goodwill [Line Items]    
Gross goodwill $ 1,463,000  
Accumulated impairment loss (1,463,000)  
Balance at December 31, 2017 $ 1,463,000