Fair Value Measurements (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Cash and cash equivalents measured at fair value on recurring basis [Abstract]
Proceeds from the sale of available-for-sale securities	$ 458,237	$ 0
Recurring [Member]
Cash and cash equivalents measured at fair value on recurring basis [Abstract]
Cash and cash equivalents	10,464,413		$ 10,302,732
Available-for-sale securities			458,237
Recurring [Member] | Level 1 [Member]
Cash and cash equivalents measured at fair value on recurring basis [Abstract]
Cash and cash equivalents	10,464,413		10,302,732
Available-for-sale securities			0
Recurring [Member] | Level 2 [Member]
Cash and cash equivalents measured at fair value on recurring basis [Abstract]
Cash and cash equivalents	0		0
Available-for-sale securities			458,237
Recurring [Member] | Level 3 [Member]
Cash and cash equivalents measured at fair value on recurring basis [Abstract]
Cash and cash equivalents	$ 0		0
Available-for-sale securities			$ 0