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Investments (Tables)

3 Months Ended

Mar. 31, 2020

Investments [Abstract]

Cost And Estimated Fair Value Of Investments

		Cost				Gross unrealized gain				Gross unrealized loss				Fair value
March 31, 2020
Commercial Paper		$	763			$	0			$	0			$	763
Treasury Bills			7,749				0				0				7,749
Equity Securities			45				0				(3	)			42
			8,557				0				(3	)			8,554
Less Cash Equivalents			7,513				0				0				7,513
Total Investments, March 31, 2020		$	1,044			$	0			$	(3	)		$	1,041
December 31, 2019
Commercial Paper		$	797			$	0			$	0			$	797
Treasury Bills			7,734				0				0				7,734
Equity Securities			45				0				0				45
			8,576				0				0				8,576
Less Cash Equivalents			8,531				0				0				8,531
Total Investments, December 31, 2019		$	45			$	0			$	0			$	45

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Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value.

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