	Three Months Ended March 31,
	2020		2019
	(in thousands)
Cash flows from operating activities:
Net loss	$	(3,336)	$	(2,351)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization		279		274
Accretion of asset retirement obligation		59		55
Decrease in derivative at fair value		215		—
Loss (gain) on trading securities		—		106
Asset write off		—		16
Gain on reduction of asset retirement obligation		—		(39)
Stock compensation		52		564
Changes in operating assets and liabilities from continuing operations:
Decrease (increase) in lease receivable		138		(8)
(Increase) decrease in prepaid expenses and other assets		43		(62)
(Increase) decrease in inventories		53		(2)
Increase in value added tax recoverable, net		—		(5)
Increase in other long term assets		96		—
Decrease in reclamation liability		(1)		(63)
(Decrease) increase in accounts payable and accrued liabilities		(568)		191
Decrease in deferred revenue		(118)		(73)
Decrease in other current liabilities		(675)		(10)
Decrease in other long term liabilities		(56)		—
Net cash used in operating activities	$	(3,819)	$	(1,407)

The following table sets forth supplemental cash flow information and non-cash transactions:


	Three Months Ended March 31,
	2020		2019
	(in thousands)
Supplemental disclosure:
Interest paid	$	26	$	—
Income taxes paid	$	284	$	—

Supplemental disclosure of non-cash transactions:
Deferred equity offering costs amortized	$	32	$	34