Property, plant and equipment (Tables)

12 Months Ended

Dec. 31, 2018

Disclosure Of Property Plant And Equipment [Abstract]

Summary of Property Plant and Equipment

Cost	As at January 1, 2018		Additions (i)		Transfers			As at December 31, 2018
Land	$	1,558	$	1,649	$	-		$	3,207
Building structures		11,518		5,417		4,717			21,652
Furniture and equipment		134		542		-			676
Computer equipment		148		316		-			464
Security equipment		886		99		-			985
Production equipment		2,481		2,342		-			4,823
Road		137		-		-			137
Leasehold improvements		1,497		87		-			1,584
Equipment under finance lease (iii)		-		217		-			217
Construction in progress		39,337		106,853		(4,717	)		141,473
	$	57,696	$	117,522	$	-		$	175,218

12. Property, plant and equipment (continued)

Accumulated depreciation	As at January 1, 2018		Additions (ii)		Transfers		As at December 31, 2018
Building structures	$	433	$	751	$	-	$	1,184
Furniture and equipment		43		78		-		121
Computer equipment		75		94		-		169
Security equipment		196		188		-		384
Production equipment		431		465		-		896
Road		10		7		-		17
Leasehold improvements		336		174		-		510
Equipment under finance lease (iii)		-		46		-		46
	$	1,524	$	1,803	$	-	$	3,327
Net book value	$	56,172					$	171,891

Cost	As at January 1, 2017		Additions (i)		Transfers			As at December 31, 2017
Land	$	1,558	$	-	$	-		$	1,558
Building structures		2,761		2,723		6,034			11,518
Furniture and equipment		63		71		-			134
Computer equipment		88		60		-			148
Security equipment		474		412		-			886
Production equipment		2,106		375		-			2,481
Road		137		-		-			137
Leasehold improvements		1,429		68		-			1,497
Construction in progress		6,034		39,337		(6,034	)		39,337
	$	14,650	$	43,046	$	-		$	57,696

Accumulated depreciation	As at January 1, 2017		Additions (ii)		Transfers		As at December 31, 2017
Building structures	$	120	$	313	$	-	$	433
Furniture and equipment		18		25		-		43
Computer equipment		36		39		-		75
Security equipment		60		136		-		196
Production equipment		103		328		-		431
Road		5		5		-		10
Leasehold improvements		186		150		-		336
	$	528	$	996	$	-	$	1,524
Net book value	$	14,122					$	56,172

(i)	During the year ended December 31, 2018, there were non-cash additions from the amortization of capitalized transaction costs and the capitalization of accrued interest to construction in progress and building structures amounting to $762 (2017 - $345). Refer to Note 15. In addition, there were land clearing costs and construction costs amounting to $2,092 that were paid by non-controlling interests, and outstanding as at December 31, 2018 in the form of advances. These advances accrued interest of $44 which was capitalized to construction in progress. Refer to Note 14.
(ii)	During the year ended December 31, 2018, $484 (2017 - $455) of depreciation expense was recorded as part of cost of sales. An additional $770 of depreciation expense remained capitalized in biological assets and inventory, as at December 31, 2018 (2017 - $nil).
(iii)	As at December 31, 2018 the net carrying amount of property, plant, and equipment includes equipment held under finance lease with a net carrying amount of $171 (2017 - $nil).