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Note 7 - Investments in Joint Ventures (Tables)

12 Months Ended

Aug. 31, 2022

Notes Tables

Condensed Balance Sheet [Table Text Block]

		As of August 31, 2022
		Total				EXCOR				OTHER
Current assets		$	52,428,831			$	26,047,914			$	26,380,917
Total assets			55,854,457				27,932,532				27,921,925
Current liabilities			10,981,833				2,943,895				8,037,938
Noncurrent liabilities			1,138,980				-				1,138,980
Joint ventures’ equity			43,733,644				24,988,637				18,745,007
Northern Technologies International Corporation’s share of joint ventures’ equity			21,814,754				12,494,320				9,320,434
Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings			21,256,923				12,463,415				8,793,508

		As of August 31, 2021
		Total				EXCOR				OTHER⁽¹⁾
Current assets		$	69,394,796			$	33,886,655			$	35,508,141
Total assets			73,814,402				36,211,520				37,602,882
Current liabilities			16,366,398				5,386,377				10,980,021
Noncurrent liabilities			1,455,524				-				1,455,524
Joint ventures’ equity			55,992,480				30,825,144				25,167,336
Northern Technologies International Corporation’s share of joint ventures’ equity			27,623,768				15,412,574				12,211,194
Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings			24,702,778				14,697,490				10,005,288

Condensed Income Statement [Table Text Block]

		Fiscal Year Ended August 31, 2022
		Total				EXCOR				OTHER
Net sales		$	104,077,748			$	42,853,162			$	61,224,586
Gross profit			41,030,647				20,312,400				20,718,247
Net income			9,302,237				6,487,855				2,814,382
Northern Technologies International Corporation’s share of equity in income of joint ventures			4,725,918				3,236,989				1,488,929
Northern Technologies International Corporation’s dividends received from joint ventures			5,723,176				4,255,200				1,467,976

		Fiscal Year Ended August 31, 2021
		Total				EXCOR				OTHER⁽¹⁾
Net sales		$	120,954,550			$	46,522,688			$	74,431,862
Gross profit			53,371,610				25,389,981				27,981,629
Net income			14,921,531				8,798,995				6,122,536
Northern Technologies International Corporation’s share of equity in income of joint ventures			7,465,214				4,400,403				3,064,811
Northern Technologies International Corporation’s dividends received from joint ventures			3,665,365				1,809,900				1,855,465