Note 15 - Income Taxes (Tables)

12 Months Ended

Aug. 31, 2017

Notes Tables

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	Fiscal Year Ended August 31,
	2017			2016
Current:
Federal	$	—		$	—
State		62,000			20,000
Foreign		754,000			647,000
		816,000			667,000
Deferred:
Federal		(135,000	)		6,000
State		(9,000	)		—
Foreign		28,000			(47,000	)
		(116,000	)		(41,000	)
	$	700,000		$	626,000

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	Fiscal Year Ended August 31,
	2017			2016
Tax computed at statutory rates	$	1,591,000		$	(195,000	)
State income tax, net of federal benefit		53,000			20,000
Tax effect on equity in income of international joint ventures		(1,998,000	)		(956,000	)
Tax effect on dividends received from joint ventures and investment at carrying value		3,159,000			2,681,000
Tax effect of foreign operations		841,000			997,000
Foreign tax credit		(3,680,000	)		(3,178,000	)
Research and development credit		(212,000	)		(408,000	)
Valuation allowance		989,000			1,620,000
Stock based compensation		81,000			90,000
Non-controlling interest		(143,000	)		(148,000	)
Other		19,000			103,000
	$	700,000		$	626,000

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	August 31,
	2017			2016
Accrued compensation	$	310,300		$	150,600
Inventory costs		87,000			95,300
Accrued joint venture expenses		15,200			54,200
Other accrued expenses		74,000			87,000
Goodwill and other intangible assets		1,317,700			1,332,000
Stock-based compensation		241,600			210,600
Foreign tax credit carryforward		6,105,700			5,679,000
Other credit and loss carryforwards		3,473,100			3,214,300
Total deferred tax assets		11,624,600			10,823,000
Valuation allowance		(9,578,700	)		(8,893,300	)
Total deferred tax assets after valuation allowance		2,045,900			1,929,700
Property and equipment		(206,000	)		(215,600	)
Other		(83,300	)		(74,300	)
Total deferred tax liabilities		(289,300	)		(289,900	)
Net deferred tax assets	$	1,756,600		$	1,639,800

Summary of Income Tax Contingencies [Table Text Block]

	Fiscal Year Ended August 31,
	2017			2016
Gross unrecognized tax benefits – beginning balance	$	238,000		$	203,000
Gross increases (decreases) - prior period tax positions		(4,000	)		15,000
Gross increases – current period tax positions		16,000			20,000
Gross unrecognized tax benefits – ending balance	$	250,000		$	238,000