Investments (Tables)

6 Months Ended

Jun. 30, 2022

Investments [Abstract]

Cost And Estimated Fair Value Of Investments

	Cost		Gross unrealized gain		Gross unrealized loss		Fair value
June 30, 2022
Commercial Paper	$	1,141	$	0	$	0	$	1,141
Treasury Bills		7,983		6		0		7,989
Equity Securities		54		2		0		56
		9,178		8		0		9,186
Less Cash Equivalents		6,130		4		0		6,134
Total Investments, June 30, 2022	$	3,048	$	4	$	0	$	3,052
December 31, 2021
Commercial Paper	$	1,520	$	0	$	0	$	1,520
Treasury Bills		8,000		0		0		8,000
Equity Securities		54		2		0		56
		9,574		2		0		9,576
Less Cash Equivalents		6,520		0		0		6,520
Total Investments, December 31, 2021	$	3,054	$	2	$	0	$	3,056