24. SUPPLEMENTAL CASH FLOW INFORMATION

During the year ended December 31, 2017 and 2016, there was no payment of income taxes. The Company paid $7.7 million of interest during the year ended December 31, 2017 (year ended December 31, 2016 - $7.2 million).

Changes in working capital for the year ended December 31, 2017 and 2016 are as follows:



	For the Years Ended December 31,
	2017			2016
Decrease/(increase) in accounts receivable	$	3,871		$	(2,185	)
Increase in inventories	(7,684		)	(9,369		)
(Increase)/decrease in prepaids and other	(2,132		)	1,059
(Decrease)/increase in accounts payable and accrued liabilities	(1,503		)	1,656
Decrease in current portion of vendor agreement	—			(13,369		)
Total changes in working capital	$	(7,448	)	$	(22,208	)

Other includes the following components:



	For the Years Ended December 31,
	2017			2016
Loss/(gain) on disposal of assets	$	672		$	(180	)
Net realizable value adjustment on inventory	2,410			1,190
(Gain)/loss on fair value of warrants (see Note 5)	(86		)	2,322
Gain on fair value of marketable securities	(64		)	(69		)
Gain on deferral of payables	—			(2,682		)
Accretion of vendor agreement	731			2,008
Accretion of rehabilitation provisions (see Note 10)	1,245			1,368
Amortization of financing fees	378			884
Accretion of 7% Convertible Debentures discount	1,845			870
Gain on reduction of rehabilitation provisions	(4,945		)	(198		)
Conversion make-whole payment in common shares (see Note 13)	—			885
Loss/(gain) on conversion of 7% Convertible Debentures, net	165			(48		)
Gain on warrant exercise	(193		)	—
	$	2,158		$	6,350

Non-cash changes of liabilities arising from financing activities

During the year ended December 31, 2017, the non-cash changes relating to the changes in liabilities arising from financing activities were $6.9 million relating to the conversion of the 7% Convertible Debentures, $2.2 million accretion of debt and $0.3 million fair value loss on the 5% Convertible Debentures.