INCOME TAXES (Tables)

12 Months Ended

May. 31, 2015

Income Tax Disclosure [Abstract]

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

	2015		2014
Current:
U.S. Federal	$	--	$	--
State and local		(17,024)		6,240
Total current		(17,024)		6,240
Deferred:
U.S. Federal		(267,418)		(174,000)
State and local		(30,582)		(43,000)
Total deferred		(298,000)		(217,000)
Income tax benefit	$	(315,024)	$	(210,760)

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

Years ended May 31,	2015		2014
Computed "expected" tax benefit	$	(226,024)	$	(148,760)
Increase (reduction) in income taxes resulting from:
Change in valuation allowance		--		--
State income taxes, net of federal benefit		(27,000)		(47,000)
Research and development tax credits		(63,000)		(26,000)
Permanent tax differences and other		1,000		11,000
Income tax benefit	$	(315,024)	$	(210,760)

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

Years ended May 31,	2015		2014
Deferred tax assets:
Accounts receivable, principally due to allowance for doubtful accounts and sales returns	$	7,000	$	11,000
Inventory valuation		9,000		16,000
Compensated absences and deferred payroll		45,000		39,000
Net operating loss carryforwards		484,000		325,000
Tax credit carryforwards		239,000		160,000
Deferred rent expense		13,000		21,000
Other		56,000		48,000
Total deferred tax assets		853,000		620,000
Less valuation allowance		--		--
		853,000		620,000
Deferred tax liabilities:
Accumulated depreciation of property and equipment		(109,000)		(174,000)
Net deferred tax asset	$	744,000	$	446,000
Deferred tax assets, current portion	$	74,000	$	87,000
Deferred tax assets, long-term portion		670,000		359,000
	$	744,000	$	446,000