NOTE I – FAIR VALUE OF FINANCIAL INSTRUMENTS

The cost, gross unrealized gains, gross unrealized losses, and fair market value of available-for-sale securities at January 31, 2021 and April 30, 2020, respectively, were as follows (in thousands):

	January 31, 2021
	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Market Value
Fixed income securities	$	10,029	$	492	$	(41	)	$	10,480

	April 30, 2020
	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Market Value
Fixed income securities	$	10,081	$	495	$	(6	)	$	10,570

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
January 31, 2021
Fixed Income Securities	$	378	$	(8	)	$	1,230	$	(33	)	$	1,608	$	(41	)

April 30, 2020
Fixed Income Securities	$	380	$	(6	)	$	-	$	-		$	380	$	(6	)

During the three and nine months ended January 31, 2021, the Company sold or redeemed available-for-sale securities of approximately $477,000 and $2.0 million, respectively, realizing gains of approximately $15,000 and $26,000, respectively.

Maturities of fixed income securities classified as available-for-sale at January 31, 2021 were as follows, at cost (in thousands):

Current	$	3,343
Due after one year through five years		4,109
Due after five years		2,577
	$	10,029

The fair value accounting framework provides a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements).

The levels of the fair value hierarchy are described below:

	Level 1	Inputs to the valuation methodology are unadjusted quoted prices for identical assets or liabilities in active markets that the Company has the ability to access.

	Level 2	Inputs to the valuation methodology include: -Quoted prices for similar assets or liabilities in active markets; -Quoted prices for identical or similar assets or liabilities in inactive markets; -Inputs other than quoted prices that are observable for the asset or liability; and -Inputs that are derived principally from or corroborated by observable market data by correlation or other means.

	Level 3	Inputs to the valuation methodology are unobservable and significant to the fair value measurement.

The asset’s or liability’s fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques used need to maximize the use of observable inputs and minimize the use of unobservable inputs. The Company’s money market, business account, and U.S. securities are valued on a Level 1 basis. The Company’s fixed income corporate debt securities and certificates of deposit are valued on a Level 2 basis.