Summary of Significant Accounting Policies (Schedule of Trade Accounts Payable and Other Current Liabilities) (Details) - USD ($)	Mar. 31, 2021	Dec. 31, 2020
Other Current Liabilities
Trade accounts payable	$ 69,867	$ 49,182
Payroll and related expenses	56,401	39,290
Patent monetization expenses	120,105	120,105
Current lease liabilities	45,474	44,630
Deferred revenue	34,178	34,178
Professional and other service fees	144,151	132,206
Total trade accounts payable and other current liabilities	$ 470,176	$ 419,591