Annual report pursuant to Section 13 and 15(d)

Summary Of Significant Accounting Policies (Components Of Accumulated Other Comprehensive Loss) (Details)

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Summary Of Significant Accounting Policies (Components Of Accumulated Other Comprehensive Loss) (Details)
 12 Months Ended
Dec. 31, 2017
USD ($)
Accumulated Other Comprehensive Income (Loss) [Line Items]  
BALANCE $ 61,632,692
BALANCE 49,170,727
Foreign Currency Translation [Member]  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
BALANCE (704,000)
Net current period change 79,000
BALANCE (625,000)
Unrealized (Loss)/Gain On Securities [Member]  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
BALANCE 17,000
Net current period change (5,000)
BALANCE 12,000
Accumulated Other Comprehensive Income (Loss) [Member]  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
BALANCE (686,661)
Net current period change 74,000
BALANCE $ (613,379)