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Note 6 - Investments in Joint Ventures (Tables)

3 Months Ended

Nov. 30, 2019

Notes Tables

Condensed Balance Sheet [Table Text Block]

		As of November 30, 2019
		Total				EXCOR				All Other
Current assets		$	62,227,465			$	31,696,156			$	30,531,309
Total assets			66,157,582				33,959,879				32,197,703
Current liabilities			14,585,105				4,166,716				10,418,389
Noncurrent liabilities			20,886				—				20,886
Joint ventures’ equity			51,551,596				29,793,164				21,758,432
Northern Technologies International Corporation’s share of joint ventures’ equity			25,402,933				14,896,584				10,506,349
Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings		$	23,373,721			$	14,865,679			$	8,508,042

		As of August 31, 2019
		Total				EXCOR				All Other
Current assets		$	59,162,834			$	29,139,787			$	30,023,047
Total assets			63,326,703				31,666,841				31,659,862
Current liabilities			14,145,499				3,573,160				10,572,339
Noncurrent liabilities			20,797				—				20,797
Joint ventures’ equity			49,160,407				28,093,681				21,066,726
Northern Technologies International Corporation’s share of joint ventures’ equity			24,207,339				14,046,842				10,160,497
Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings			22,178,126				14,015,937				8,162,189

Condensed Income Statement [Table Text Block]

		Three Months Ended November 30, 2019
		Total				EXCOR				All Other
Net sales		$	25,460,294			$	9,368,239			$	16,092,055
Gross profit			11,357,134				5,325,488				6,031,646
Net income			2,587,980				1,642,327				945,653
Northern Technologies International Corporation’s share of equity in income from joint ventures			1,293,991				821,164				472,827
Northern Technologies International Corporation's dividends received from joint ventures		$	205,431				—			$	205,431

		Three Months Ended November 30, 2018
		Total				EXCOR				All Other
Net sales		$	30,479,926			$	12,869,523			$	17,610,403
Gross profit			13,356,891				6,683,574				6,673,317
Net income			4,163,791				3,039,802				1,123,989
Northern Technologies International Corporation’s share of equity in income from joint ventures			2,004,162				1,519,901				484,261
Northern Technologies International Corporation's dividends received from joint ventures		$	1,486,705			$	843,750			$	642,955