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Note 6 - Investments in Joint Ventures (Tables)

6 Months Ended

Feb. 28, 2018

Notes Tables

Condensed Balance Sheet [Table Text Block]

		As of February 28, 2018
		Total				EXCOR				All Other
Current assets		$	57,427,392			$	25,206,550			$	32,220,842
Total assets			61,497,315				27,326,727				34,170,588
Current liabilities			16,468,617				4,148,371				12,320,246
Noncurrent liabilities			120,481				—				120,481
Joint ventures’ equity			44,908,217				23,178,356				21,729,861
Northern Technologies International Corporation’s share of joint ventures’ equity			22,259,526				11,589,180				10,670,346
Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings		$	20,230,286			$	11,558,275			$	8,672,011
Northern Technologies International Corporation’s dividends received from joint ventures		$	1,770,116			$	1,199,142			$	570,974

		As of August 31, 2017
		Total				EXCOR				All Other
Current assets		$	51,518,210			$	22,142,514			$	29,375,696
Total assets			55,633,891				24,301,194				31,332,697
Current liabilities			15,118,074				4,469,567				10,648,507
Noncurrent liabilities			181,210				—				181,210
Joint ventures’ equity			40,334,607				19,831,627				20,502,980
Northern Technologies International Corporation’s share of joint ventures’ equity			20,035,074				9,915,816				10,119,258
Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings			17,960,860				9,884,911				8,075,949
Northern Technologies International Corporation’s dividends received from joint ventures		$	6,377,054			$	5,379,062			$	997,992

Condensed Income Statement [Table Text Block]

		Three Months Ended February 28, 2018
		Total				EXCOR				All Other
Net sales		$	30,220,550			$	12,204,736			$	18,015,814
Gross profit			13,531,276				6,557,964				6,973,312
Net income			3,712,684				2,674,777				1,037,907
Northern Technologies International Corporation’s share of equity in income from joint ventures		$	1,805,997			$	1,338,671			$	467,326

		Six Months Ended February 28, 2018
		Total				EXCOR				All Other
Net sales		$	58,719,261			$	23,231,250			$	35,488,011
Gross profit			26,319,398				12,491,490				13,827,908
Net income			7,212,499				5,158,577				2,053,922
Northern Technologies International Corporation’s share of equity in income from joint ventures		$	3,547,325			$	2,580,571			$	966,754

		Three Months Ended February 28, 2017
		Total				EXCOR				All Other
Net sales		$	22,962,599			$	9,076,908			$	13,885,691
Gross profit			10,161,509				4,867,517				5,293,992
Net income			2,774,943				2,161,408				613,535
Northern Technologies International Corporation’s share of equity in income from joint ventures		$	1,383,139			$	1,078,272			$	304,867

		Six Months Ended February 28, 2017
		Total				EXCOR				All Other
Net sales		$	47,163,046			$	18,285,432			$	28,877,614
Gross profit			20,858,536				9,761,696				11,096,840
Net income			5,182,951				4,017,746				1,165,205
Northern Technologies International Corporation’s share of equity in income from joint ventures		$	2,657,143			$	2,006,441			$	650,702