NOTE I - FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)

6 Months Ended

Oct. 31, 2018

Investments, Debt and Equity Securities [Abstract]

Schedule of Available-for-sale Securities Reconciliation [Table Text Block]

The cost, gross unrealized gains, gross unrealized losses, and fair market value of available-for-sale securities at October 31, 2018 and April 30, 2018, respectively, were as follows (in thousands):

	October 31, 2018
	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Market Value
Fixed income securities	$	7,522	$	3	$	(184	)	$	7,341

	April 30, 2018
	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Market Value
Fixed income securities	$	6,274	$	10	$	(135	)	$	6,149

Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block]

The following table presents the fair value and unrealized losses, aggregated by investment type and length of time that individual securities have been in a continuous unrealized loss position (in thousands):

	Less than 12 months					12 Months or more				Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
October 31, 2018
Fixed Income Securities	$	6,023	$	(177	)	$	-	$	-	$	6,023	$	(177	)
April 30, 2018
Fixed Income Securities	$	5,334	$	(135	)	$	-	$	-	$	5,334	$	(135	)

Investments Classified by Contractual Maturity Date [Table Text Block]

Maturities of fixed income securities classified as available-for-sale at October 31, 2018 were as follows (at cost, in thousands):

Current	$	1,114
Due after one year through five years		2,898
Due after five years through ten years		3,510
	$	7,522