NOTE J - STOCK OPTIONS AND WARRANTS (Tables)

12 Months Ended

Apr. 30, 2016

NOTE J - STOCK OPTIONS AND WARRANTS (Tables) [Line Items]

Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Table Text Block]

The following table summarizes common stock options issued to officers, directors and employees outstanding and the related exercise price.

Options Outstanding							Options Exercisable
Number Outstanding		Weighted Average Remaining Contractual Life (Years)		Weighted Average Exercise Price			Number Exercisable		Weighted Average Exercise Price
	327,335		1.12		$	0.50		327,335		$	0.50

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

Transactions involving stock options issued to officers, directors and employees are summarized as follows:

	Number of Shares			Weighted Average Price Per Share
Outstanding at April 30, 2014		360,001		$	2.41
Granted		-			-
Exercised		(32,666	)		2.37
Canceled or expired		-			-
Outstanding at April 30, 2015		327,335		$	0.50
Granted		-			-
Exercised		-			-
Canceled or expired		-			-
Outstanding at April 30, 2016		327,335		$	0.50

Schedule of Warrants or Rights, Shares Authorized, by Exercise Price Range [Table Text Block]

The following table summarizes the changes in warrants outstanding and the related prices for the shares of the Company’s common stock issued to non-employees of the Company.

		Warrants Outstanding						Warrants Exercisable
Exercise Prices		Number Outstanding		Weighted Average Remaining Contractual Life (Years)		Weighted Average Exercise Price		Number Exercisable		Weighted Average Exercise Price
$	1.275		1,961		.08	$	1.275		1,961	$	1.275
$	0.8475		69,199		0.40	$	0.8475		69,199	$	0.8475
$	0.80		20,000		1.67	$	0.80		20,000	$	0.80
$	0.75		21,680		0.33	$	0.75		21,680	$	0.75
$	0.65		40,000		3.51	$	0.65		40,000	$	0.65
$	0.60		40,000		1.15	$	0.60		40,000	$	0.60
$	0.40		150,000		1.49	$	0.40		150,000	$	0.40
			342,840		1.39	$	0.59		342,840	$	0.59

Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]

Transactions involving stock warrants issued to non-employees are summarized as follows:

	Number of Shares			Weighted Average Exercise Price Per Share
Outstanding at April 30, 2014		397,885		$	1.99
Granted		190,000			0.45
Exercised		(167,122	)		0.85
Canceled or expired		-			-
Outstanding at April 30, 2015		420,763			0.66
Granted		-			-
Exercised		-			-
Canceled or expired		(77,923	)		0.98
Outstanding at April 30, 2016		342,840		$	0.59

Warrant [Member]

NOTE J - STOCK OPTIONS AND WARRANTS (Tables) [Line Items]

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Table Text Block]

The weighted-average fair value of stock warrants granted to non-employees during the year ended April 30, 2015 was $0.20, and the weighted-average significant assumptions used to determine those fair values, using a Black-Scholes option-pricing model are as follows:

	2015
Significant assumptions (weighted-average):
Risk-free interest rate at grant date		1.09	%
Expected stock price volatility		140	%
Expected dividend payout		-
Expected option life-years		3.42