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Short-Term Investments (Tables)

3 Months Ended

Mar. 31, 2022

Investments Debt And Equity Securities [Abstract]

Summary of Short-Term Investments by Significant Investment Category

The Company’s short-term investments by significant investment category as of March 31, 2022, are as follows:

Description		Amortized Cost						Gross Unrealized Gains				Gross Unrealized Losses						Accrued Interest				Estimated Fair Value
Level 1: (1)
Cash alternatives		$	2,562,408					$	-			$	-					$	-			$	2,562,408
Certificates of deposit			579,176						-				4,679						795				575,292
Corporate bonds and notes			3,172,170						-				7,450						23,685				3,188,405
Municipal Securities			7,172,218						-				4,927						47,014				7,214,305
		$	13,485,972					$	-			$	17,056					$	71,494			$	13,540,410

The Company’s short-term investments by significant investment category as of December 31, 2021, are as follows:

Description		Amortized Cost						Gross Unrealized Gains				Gross Unrealized Losses						Accrued Interest				Estimated Fair Value
Level 1: (1)
Cash alternatives		$	2,172,853					$	-			$	-					$	-			$	2,172,853
Certificates of deposit			591,968						-				3,294						1,222				589,896
Corporate bonds and notes			4,293,722						-				5,432						46,820				4,335,110
Municipal Securities			7,411,043						-				2,334						29,182				7,437,891
		$	14,469,586					$	-			$	11,060					$	77,224			$	14,535,750

(1)

Level 1 fair value estimates are based on quoted prices in active markets for identical assets or liabilities.