Summary of Significant Accounting Policies (Components of Accumulated Other Comprehensive Loss) (Details)	6 Months Ended
	Jun. 30, 2021 USD ($)
Accumulated Other Comprehensive Income (Loss) [Line Items]
BALANCE	$ 47,494,727
BALANCE	43,888,819
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
BALANCE	(700,000)
Net current period change	56,000
BALANCE	(644,000)
Unrealized Gain (Loss) On Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
BALANCE	21,000
Net current period change	(7,000)
BALANCE	14,000
Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
BALANCE	(678,767)
Net current period change	49,000
BALANCE	$ (630,428)