Investments (Tables)

6 Months Ended

Jun. 30, 2020

Investments [Abstract]

Cost And Estimated Fair Value Of Investments

	Cost		Gross unrealized gain		Gross unrealized loss			Fair value
June 30, 2020
Commercial Paper	$	765	$	0	$	0		$	765
Treasury Bills		7,748		0		0			7,748
Equity Securities		54		0		(12	)		42
		8,567		0		(12	)		8,555
Less Cash Equivalents		1,765		0		0			1,765
Total Investments, June 30, 2020	$	6,802	$	0	$	(12	)	$	6,790
December 31, 2019
Commercial Paper	$	797	$	0	$	0		$	797
Treasury Bills		7,734		0		0			7,734
Equity Securities		54		0		(9	)		45
		8,585		0		(9	)		8,576
Less Cash Equivalents		8,531		0		0			8,531
Total Investments, December 31, 2019	$	54	$	0	$	(9	)	$	45