Quarterly report pursuant to Section 13 or 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)
 6 Months Ended
Jun. 30, 2018
USD ($)
Accumulated Other Comprehensive Income (Loss) [Line Items]  
BALANCE $ 49,170,727
BALANCE 44,424,076
Foreign Currency Translation [Member]  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
BALANCE (625,000)
Net current period change (71,000)
BALANCE (696,000)
Unrealized (Loss)/Gain On Securities [Member]  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
BALANCE 12,000
Net current period change (2,000)
BALANCE 10,000
Accumulated Other Comprehensive Loss [Member]  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
BALANCE (613,379)
Net current period change (73,000)
BALANCE $ (686,282)