EXPLORATION AND EVALUATION ASSETS (Tables)

12 Months Ended

Dec. 31, 2017

Dec. 31, 2016

Statement [Line Items]

Disclosure of detailed information about exploration and evaluation assets [Table Text Block]

		Rook 1		Other Athabasca Basin Properties			IsoEnergy Properties		Total
		$		$			$		$
Acquisition costs:
Balance, December 31, 2016	$	230,807	$	1,124,277		$	21,438,306		22,793,390
Additions		4,270		333,330			3,298,942		3,636,542
Balance, December 31, 2017	$	235,077	$	1,457,607		$	24,737,248		26,429,932
Deferred exploration costs:
Balance, December 31, 2016	$	77,007,303	$	4,318,909		$	5,327,318	$	86,653,530
Additions:
Drilling		20,592,799		3,297			1,168,096		21,764,192
General exploration		2,163,554		25,885			110,603		2,300,042
Geological and geophysical		5,206,266		681,955			521,632		6,409,853
Labour and wages		4,391,456		-			510,398		4,901,854
Share-based payments (Note 9)		2,952,316		-			357,475		3,309,791
Travel		624,265		-			106,845		731,110
		35,930,656		711,137			2,775,049		39,416,842
Impairment		-		(87,749	)		-		(87,749	)
Balance, December 31, 2017	$	112,937,959	$	4,942,297		$	8,102,367	$	125,982,623
Total costs, December 31, 2017	$	113,173,036	$	6,399,904		$	32,839,615	$	152,412,555

		Rook 1	Other Athabasca Basin Properties		IsoEnergy Properties	Radio		Total
		$	$		$	$		$
Acquisition costs:
Balance, December 31, 2015	$	220,713	1,274,966		-	20,133,753		21,629,432
Additions		10,094	53,864		1,100,000	-		1,163,958
Properties transferred to IsoEnergy		-	(204,553	)	20,338,306	(20,133,753	)	-
Balance, December 31, 2016	$	230,807	1,124,277		21,438,306	-		22,793,390
Deferred exploration costs:
Balance, December 31, 2015	$	37,803,918	3,409,339		-	2,293,824		43,507,081
Additions:
Drilling		24,989,860	16,061		1,197,163	-		26,203,084
General exploration		2,283,418	8,873		119,460	-		2,411,751
Geological and geophysical		5,333,676	1,991,174		882,866	-		8,207,716
Labour and wages		3,542,893	-		363,420	-		3,906,313
Share-based payments (Note 9)		2,779,787	-		256,420	-		3,036,207
Travel		273,751	-		72,485	-		346,236
		39,203,385	2,016,108		2,891,814	-		44,111,307
Properties transferred to IsoEnergy		-	(141,680	)	2,435,504	(2,293,824	)	-
Impairment		-	(964,858	)	-	-		(964,858	)
Balance, December 31, 2016	$	77,007,303	4,318,909		5,327,318	-		86,653,530
Total costs, December 31, 2016	$	77,238,110	5,443,186		26,765,624	-		109,446,920