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Note 6 - Investments in Joint Ventures (Tables)

6 Months Ended

Feb. 28, 2017

Notes Tables

Condensed Balance Sheet [Table Text Block]

		As of February 28, 2017
		TOTAL				EXCOR				INDIA				FINLAND				All Other
Current assets		$	51,803,644			$	25,396,338			$	4,342,356			$	1,625,779			$	20,439,171
Total assets			55,467,386				27,220,507				4,674,322				1,905,434				21,667,123
Current liabilities			13,028,897				3,027,106				1,485,452				484,988				8,031,351
Noncurrent liabilities			107,511				—				3,684				—				103,827
Joint ventures’ equity			42,330,978				24,193,401				3,185,186				1,420,446				13,531,945
Northern Technologies International Corporation’s share of joint ventures’ equity			21,059,113				12,096,702				1,592,593				710,221				6,659,597
Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings		$	18,984,898			$	12,065,797			$	727,771			$	690,221			$	5,501,109

		As of August 31, 2016
		TOTAL				EXCOR				INDIA				FINLAND				All Other
Current assets		$	48,922,924			$	22,928,810			$	4,027,016			$	1,928,861			$	20,038,237
Total assets			52,407,026				24,733,340				4,352,573				2,211,392				21,109,721
Current liabilities			12,433,700				3,485,213				1,097,231				546,506				7,304,730
Noncurrent liabilities			100,783				—				6,382				—				94,401
Joint ventures’ equity			39,872,543				21,248,109				3,248,960				1,664,886				13,710,588
Northern Technologies International Corporation’s share of joint ventures’ equity			19,840,774				10,624,056				1,624,480				832,442				6,759,796
Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings		$	17,779,912			$	10,593,151			$	759,658			$	812,442			$	5,614,661
Northern Technologies International Corporation's dividends received from joint ventures		$	5,503,314			$	4,364,700			$	326,023			$	206,516			$	606,075

Condensed Income Statement [Table Text Block]

		Six Months Ended February 28, 2017
		Total				EXCOR				INDIA				FINLAND				All Other
Net sales		$	47,163,046			$	18,285,432			$	3,263,830			$	1,726,555			$	23,887,229
Gross profit			20,858,536				9,761,696				1,518,122				1,032,318				8,546,400
Net income			5,182,951				4,017,746				192,164				252,140				720,901
Northern Technologies International Corporation’s share of equity in income of joint ventures		$	2,657,143			$	2,006,441			$	170,549			$	126,361			$	353,792
Northern Technologies International Corporation’s dividends received from joint ventures		$	564,934			$	—			$	206,701			$	200,768			$	157,465

		Six Months Ended February 29, 2016
		Total				EXCOR				INDIA				FINLAND				All Other
Net sales		$	42,000,424			$	15,618,735			$	3,036,404			$	1,581,287			$	21,763,999
Gross profit			18,523,102				8,059,186				1,450,777				943,141				8,069,998
Net income			3,872,728				2,960,951				316,292				207,973				387,512
Northern Technologies International Corporation’s share of equity in income of joint ventures			1,936,420				1,480,975				157,474				104,070				193,900
Northern Technologies International Corporation’s dividends received from joint ventures		$	4,054,605			$	32,523,000			$	326,023			$	206,516			$	269,766