Other Expense (Tables)

3 Months Ended

Mar. 31, 2021

Other Income And Expenses [Abstract]

Schedule of Other Income and Expense

Other income and expense consisted of the following:

	March 31,
	2021			2020
	(000's)
Interest income	$	15		$	41
Interest expense		(142	)		(276	)
Change in fair value of derivative liability		—			(320	)
Realized gain (loss) on disposal of equipment		44			—
Total other income (expenses)	$	(83	)	$	(555	)