24. SUPPLEMENTAL CASH FLOW INFORMATION

During the year ended December 31, 2018 and 2017, there was no payment of income taxes. The Company paid $7.9 million of interest during the year ended December 31, 2018 (the year ended December 31, 2017 - $7.3 million).

Changes in working capital for the year ended December 31, 2018 and 2017 are as follows:



	For the Years Ended December 31,
	2018			2017
Decrease in accounts receivable	$	215		$	3,871
Decrease/(increase) in inventories	9,187			(7,684		)
Increase in prepaids and other	(737		)	(2,132		)
Decrease in accounts payable and accrued liabilities	(25,837		)	(1,503		)
Total changes in working capital	$	(17,172	)	$	(7,448	)

Other includes the following components:



	For the Years Ended December 31,
	2018			2017
(Gain)/loss on disposal of assets	$	(305	)	$	672
Inventory net realizable value adjustment and write-off	5,544			2,410
Loss on fair value of 5% Convertible Debentures	—			317
Gain on fair value of warrants	—			(86		)
Loss/(gain) on fair value of marketable securities	175			(64		)
Accretion of vendor agreement	731			731
Accretion of rehabilitation provisions (see Note 10)	691			1,245
Amortization of financing fees	1,322			378
Accretion of 7% Convertible Debentures discount	2,097			1,845
Gain on reduction of rehabilitation provisions	(3,080		)	(4,945		)
Loss on conversion of 7% Convertible Debentures, net	—			165
Gain on warrant exercise	—			(193		)
Interest on financing component of deferred revenue (see Note 11)	4,750			—
	$	11,925		$	2,475

Reconciliation of debt arising from financing activities during the year ended December 31, 2018 and 2017:



	Equipment financing credit facility			Finance leases			Ecobank Loan III			Ecobank Loan IV			Vendor agreement			5% Convertible Debentures			7% Convertible Debentures			Royal Gold loan			Total
December 31, 2016	$	1,119		$	1,959		$	—		$	—		$	22,338		$	13,294		$	47,617		$	18,496		$	104,823
Cash flows
Proceeds from debt agreements	—			—			10,000			—			—			—			—			—			10,000
Principal payments on debt	(972		)	(1,226		)	—			—			—			—			—			—			(2,198		)
Fair value loss on the 5% Convertible Debentures	—			—			—			—			—			317			—			—			317
5% Convertible Debentures repayment	—			—			—			—			—			(13,611		)	—			—			(13,611		)
Non-cash changes
Capitalized loan fee	—			—			(499		)	—			—			—			—			—			(499		)
New lease	—			765			—			—			—			—			—			—			765
Conversion of 7% Convertible Debentures	—			—			—			—			—			—			(6,947		)	—			(6,947		)
Accretion of debt	—			—			58			—			731			—			1,845			321			2,955
December 31, 2017	$	147		$	1,498		$	9,559		$	—		$	23,069		$	—		$	42,515		$	18,817		$	95,605
Cash flows
Proceeds from debt agreements	—			—			15,000			20,000			—			—			—			—			35,000
Principal payments on debt	(147		)	(1,714		)	(4,723		)	(1,999		)	(7,024		)	—			—			—			(15,607		)
Royal Gold loan repayment	—			—			—			—			—			—			—			(20,000		)	(20,000		)
Non-cash changes
Capitalized loan fee	—			—			—			(340		)	—			—			—			—			(340		)
New lease	—			1,899			—			—			—			—			—			—			1,899
Accretion of debt	—			—			99			39			731			—			2,097			1,183			4,149
December 31, 2018	$	—		$	1,683		$	19,935		$	17,700		$	16,776		$	—		$	44,612		$	—		$	100,706