Schedule of portion of unrealized gains and losses related to equity securities (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Investments, All Other Investments [Abstract]
Net gains and losses recognized during the period on equity securities	$ (2,427)	$ (2,758)	$ 9,001	$ (3,507)
Less: Net gains (losses) recognized during the period on equity securities sold during the period			(2,508)
Unrealized gains and losses recognized during the reporting period on equity securities still held at the reporting date	$ (2,427)	$ (2,758)	$ (6,493)	$ (3,507)