Investments (Tables)

6 Months Ended

Jul. 31, 2021

Schedule of Investments [Abstract]

Schedule of investments, cost and fair value

The following is a summary of investments as of July 31, 2021:

	Amortized Cost or Par Value		Gross Unrealized Gains		Gross Unrealized Losses		Other-than- Temporary Impairment		Estimated Fair Value
Held-to-Maturity Securities:
State and municipal bonds	$	8,592	$	10	$	—	$	—	$	8,602
Trading Securities:
Mutual funds	$	16,100	$	3,458	$	—	$	—	$	19,558

The following is a summary of investments as of January 30, 2021:

	Amortized Cost or Par Value		Gross Unrealized Gains		Gross Unrealized Losses		Other-than- Temporary Impairment		Estimated Fair Value
Held-to-Maturity Securities:
State and municipal bonds	$	3,359	$	7	$	—	$	—	$	3,366
Trading Securities:
Mutual funds	$	16,121	$	2,199	$	—	$	—	$	18,320

Schedule of amortized cost and fair value of debt securities by contractual maturity

The amortized cost and fair value of debt securities by contractual maturity as of July 31, 2021 is as follows:

	Amortized Cost		Fair Value
Held-to-Maturity Securities
Less than 1 year	$	8,592	$	8,602
1 - 5 years	—		—
	$	8,592	$	8,602