Cash Equivalents

3 Months Ended

Mar. 31, 2022

Cash Equivalents [Abstract]

Cash Equivalents

3. Cash Equivalents

The following is a summary of cash equivalents (in thousands):

			Unrealized		Estimated
			Holding		Market
March 31, 2022	Cost Basis		Gains		Value
Cash equivalents:
Money market funds	$	10,018	$	--	$	10,018
Total assets	$	10,018	$	--	$	10,018
			Unrealized		Estimated
			Holding		Market
December 31, 2021	Cost Basis		Gains		Value
Cash equivalents:
Money market funds	$	10,015	$	--	$	10,015
Total assets	$	10,015	$	--	$	10,015

There were no gross realized gains or losses on cash equivalents for the three months ended March 31, 2022 and 2021.