Investments (Tables)

3 Months Ended

Mar. 31, 2023

Investments [Abstract]

Cost And Estimated Fair Value Of Investments

	Cost		Gross unrealized gain		Gross unrealized loss		Fair value
March 31, 2023
Money Market Savings	$	1,316	$	0	$	0	$	1,316
Treasury Bills		7,914		39		0		7,953
Equity Securities		54		2		0		56
		9,284		41		0		9,325
Less Cash Equivalents		5,275		27		0		5,302
Total Investments, March 31, 2023	$	4,009	$	14	$	0	$	4,023
December 31, 2022
Commercial Paper	$	1,377	$	0	$	0	$	1,377
Treasury Bills		7,922		32		0		7,954
Equity Securities		54		2		0		56
		9,353		34		0		9,387
Less Cash Equivalents		7,319		32		0		7,351
Total Investments, December 31, 2022	$	2,034	$	2	$	0	$	2,036