Investments (Tables)

12 Months Ended

Dec. 31, 2018

Investments [Abstract]

Schedule of cost and estimated fair value of investments

	Cost		Gross unrealized gain		Gross unrealized loss			Fair value
December 31, 2018
Commercial Paper	$	667	$	0	$	0		$	667
Treasury Bills		7,656		41		0			7,697
Equity Securities		45		0		0			45
		8,368		41		0			8,409
Less Cash Equivalents		667		0		0			667
Total Investments, December 31, 2018	$	7,701	$	41	$	0		$	7,742
December 31, 2017
Commercial Paper	$	568	$	0	$	0		$	568
Treasury Bills		7,687		24		0			7,711
Equity Securities		54		0		(9	)		45
		8,309		24		(9	)		8,324
Less Cash Equivalents		568		0		0			568
Total Investments, December 31, 2017	$	7,741	$	24	$	(9	)	$	7,756

Schedule of Changes in Accumulated Other Comprehensive Income

	December 31,
	2018		2017
Unrealized Gains
Unrealized holding gains arising during the period	$	19	$	49
Less: Reclassification of gains included in net income (loss)		0		0
		19		49
Deferred Taxes on Unrealized Gains:
Increase in deferred taxes on unrealized gains arising during the period		6		8
Less: Reclassification of taxes on gains included in net income (loss)		0		0
		6		8
Net Change in Accumulated Other Comprehensive Income	$	13	$	41