Financial Instruments (Tables)

9 Months Ended

Nov. 30, 2019

Marketable Securities [Abstract]

Amortized cost, gross unrealized gains and losses, and estimated fair values of investments available for sale

e hold the following available-for-sale marketable securities, made up of municipal and corporate bonds: 

In thousands	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
November 30, 2019	$	11,750	$	152	$	18	$	11,884
March 2, 2019	12,481		59		108		12,432

Schedule of amortized cost and estimated fair values of investments by contractual maturity

The amortized cost and estimated fair values of these bonds at November 30, 2019, by contractual maturity, are shown below. Expected maturities may differ from contractual maturities, as borrowers may have the right to call or prepay obligations with or without penalty. 

In thousands	Amortized Cost		Estimated Fair Value
Due within one year	$	835	$	837
Due after one year through five years	8,581		8,710
Due after five years through 10 years	2,259		2,262
Due after 10 years through 15 years	—		—
Due beyond 15 years	75		75
Total	$	11,750	$	11,884

Fair value measurements

In thousands	Quoted Prices in Active Markets (Level 1)		Other Observable Inputs (Level 2)		Total Fair Value
November 30, 2019
Assets:
Money market funds	$	2,680	$	—	$	2,680
Commercial paper	—		500		500
Municipal and corporate bonds	—		12,384		12,384
Liabilities:
Foreign currency forward/option contract	—		69		69
Interest rate swap contract	—		16		16
March 2, 2019
Assets:
Money market funds	$	2,015	$	—	$	2,015
Commercial paper	—		300		300
Municipal and corporate bonds	—		12,432		12,432
Liabilities:
Foreign currency forward/option contract	—		470		470