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Note 6 - Investments in Joint Ventures (Tables)

6 Months Ended

Feb. 28, 2019

Notes Tables

Condensed Balance Sheet [Table Text Block]

		As of February 28, 2019
		Total				EXCOR				All Other
Current assets		$	60,831,022			$	30,259,315			$	30,571,707
Total assets			65,423,178				32,737,188				32,685,990
Current liabilities			15,529,788				3,968,110				11,561,678
Noncurrent liabilities			430,678				—				430,678
Joint ventures’ equity			49,462,712				28,769,078				20,693,634
Northern Technologies International Corporation’s share of joint ventures’ equity			24,418,491				14,384,541				10,033,950
Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings		$	22,389,278			$	14,353,636			$	8,035,642
Northern Technologies International Corporation’s dividends received from joint ventures		$	2,027,243			$	843,750			$	1,183,493

		As of August 31, 2018
		Total				EXCOR				All Other
Current assets		$	58,086,747			$	27,354,788			$	30,731,959
Total assets			62,803,261				30,033,750				32,769,511
Current liabilities			15,991,886				4,535,954				11,455,932
Noncurrent liabilities			403,653				—				403,653
Joint ventures’ equity			46,407,722				25,497,796				20,909,926
Northern Technologies International Corporation’s share of joint ventures’ equity			22,950,995				12,748,899				10,195,263
Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings			20,921,783				12,717,994				8,203,789
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, 2019
		Total				EXCOR				All Other
Net sales		$	27,749,880			$	11,092,133			$	16,657,747
Gross profit			12,632,547				6,306,084				6,326,463
Net income			3,450,976				2,440,323				1,010,653
Northern Technologies International Corporation’s share of equity in income from joint ventures		$	1,715,216			$	1,221,006			$	494,210

		Six Months Ended February 28, 2019
		Total				EXCOR				All Other
Net sales		$	58,229,806			$	23,961,656			$	34,268,150
Gross profit			25,989,438				12,989,658				12,999,780
Net income			7,614,767				5,480,125				2,134,642
Northern Technologies International Corporation’s share of equity in income from joint ventures		$	3,719,378			$	2,740,907			$	978,471

		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