Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2019

Financial Instruments [Abstract]

Summary Of Unrealized Gain And Losses

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2019		2018		2019		2018
Net gain (loss) recognized during the period on equity securities	$	2	$	62	$	195	$	60
Less: net gain / loss recognized during the period on equity securities sold during the period		-		-		-		-
Unrealized gain (loss) recognized during the reporting period on equity securities still held at the reporting date	$	2	$	62	$	195	$	60

Schedule Of Carrying Amounts And Estimated Fair Values Of Long-Term Debt

	September 30,		December 31,
	2019		2018
Carrying amount	$	3,112,021	$	2,563,660
Estimated fair value		3,285,337		2,588,086