Short-Term Investments (Tables)

6 Months Ended

Jun. 30, 2022

Short-Term Investments [Abstract]

Schedule of short-term investments

	Fair Value at June 30, 2022
	Level 1		Level 2		Level 3		Total
U.S. Treasury obligations		96,746		-		-		96,746
U.S. government agencies		-		1,100,676		-		1,100,676
Corporate and foreign bonds		-		5,639,552		-		5,639,552
Money market funds(1)		2,934,290		-		-		2,934,290
Total short-term investments	$	3,031,036	$	6,740,228	$	-	$	9,771,264

⁽¹⁾ Money market funds are included in cash and cash equivalents in the balance sheet.

	Fair Value at December 31, 2021
	Level 1		Level 2		Level 3		Total
U.S. Treasury obligations		401,290		-		-		401,290
U.S. government agencies		-		1,424,477		-		1,424,477
Corporate and foreign bonds		-		7,507,705		-		7,507,705
Money market funds(1)		576,742		-		-		576,742
Total short-term investments	$	978,032	$	8,932,182	$	-	$	9,910,214

⁽²⁾ Money market funds are included in cash and cash equivalents in the balance sheet.