Note 6 - Investments in Joint Ventures (Tables)

6 Months Ended

Feb. 28, 2021

Notes Tables

Condensed Balance Sheet [Table Text Block]

	As of February 28, 2021
	Total		EXCOR		All Other
Current assets	$	61,766,682	$	27,772,018	$	33,994,664
Total assets		65,973,432		30,256,723		35,716,709
Current liabilities		15,175,228		3,268,087		11,907,141
Noncurrent liabilities		332,479		—		332,479
Joint ventures’ equity		50,465,725		26,988,636		23,477,089
Northern Technologies International Corporation’s share of joint ventures’ equity		24,860,148		13,494,320		11,365,828
Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings		22,625,070		13,463,415		9,161,655

	As of August 31, 2020
	Total		EXCOR		All Other
Current assets	$	55,825,418	$	25,742,619	$	30,082,799
Total assets		60,295,587		28,449,772		31,845,815
Current liabilities		11,002,867		2,424,565		8,578,302
Noncurrent liabilities		365,274		—		365,274
Joint ventures’ equity		48,927,446		26,025,207		22,902,239
Northern Technologies International Corporation’s share of joint ventures’ equity		24,090,826		13,012,606		11,078,220
Northern Technologies International Corporation’s share of joint ventures’ undistributed earnings		21,855,747		12,981,701		8,874,046

Condensed Income Statement [Table Text Block]

	Three Months Ended February 28, 2021
	Total		EXCOR		All Other
Net sales	$	29,058,402	$	10,542,097	$	18,516,306
Gross profit		13,079,478		6,099,187		6,980,291
Net income		3,838,007		2,262,321		1,575,686
Northern Technologies International Corporation’s share of equity in income from joint ventures	$	1,920,012	$	1,132,578	$	787,434
Northern Technologies International Corporation's dividends received from joint ventures	$	2,198,142	$	1,809,900	$	388,242

	Six Months Ended February 28, 2021
	Total		EXCOR		All Other
Net sales	$	55,835,745	$	20,093,580	$	35,742,165
Gross profit		25,521,239		11,798,194		13,723,045
Net income		7,489,431		4,283,395		3,206,036
Northern Technologies International Corporation’s share of equity in income from joint ventures	$	3,745,724	$	2,143,115	$	1,602,609
Northern Technologies International Corporation's dividends received from joint ventures	$	3,323,503	$	1,809,900	$	1,513,603

	Three Months Ended February 29, 2020
	Total		EXCOR		All Other
Net sales	$	24,289,370	$	8,980,176	$	15,309,194
Gross profit		11,102,573		5,262,082		5,840,491
Net income		2,721,542		1,778,027		943,516
Northern Technologies International Corporation’s share of equity in income from joint ventures	$	1,360,804	$	889,226	$	471,578
Northern Technologies International Corporation's dividends received from joint ventures	$	5,353,552	$	4,675,850	$	677,702

	Six Months Ended February 29, 2020
	Total		EXCOR		All Other
Net sales	$	49,749,664	$	18,348,415	$	31,401,249
Gross profit		22,459,707		10,587,570		11,872,137
Net income		5,309,523		3,420,354		1,889,169
Northern Technologies International Corporation’s share of equity in income from joint ventures	$	2,654,794	$	1,710,390	$	944,404
Northern Technologies International Corporation's dividends received from joint ventures	$	5,558,926	$	4,675,850	$	883,133