SUMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

May 31, 2013

Accounting Policies [Abstract]

Schedule of Inventory, Current [Table Text Block]

		2013		2012
Raw materials	$	787,000	$	896,000
Work in progress		555,000		554,000
Finished products		229,000		371,000
Total	$	1,571,000	$	1,821,000

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	2013	2012
Dividend yield	0%	0%
Expected volatility	70.59-70.70%	77.76-84.97%
Risk free interest rate	0.51-0.53%	0.63-0.76%
Expected life	3.50 years	3.25-3.75 years

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

For the Years Ended May 31			2013		2012
Numerator for basic and diluted net income per common share		$	536,957	$	548,435
Denominator for basic net income per common share			7,024,418		6,887,929
Effect of dilutive securities:
	Options		426,695		219,830
Denominator for diluted net income per common share			7,451,113		7,107,759
Basic net income per common share		$	0.08	$	0.08
Diluted net income per common share		$	0.07	$	0.08