XML 89 R76.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Schedule of Available-for-sale Securities (Details) - USD ($) $ in Thousands | Jul. 31, 2022 | Jul. 31, 2021
--- | --- | ---
Debt Securities, Available-for-sale, Amortized Cost |  | $ 22,849 | $ 14,021
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax |  | 1 | 41
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax |  | (547) | (50)
Debt Securities, Available-for-sale |  | 22,303 | 14,012
Certificates of Deposit [Member] |  |  |
Debt Securities, Available-for-sale, Amortized Cost | [1] | 2,000 | 1,200
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | [1] |  | 3
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | [1] | (14) |
Debt Securities, Available-for-sale | [1] | 1,986 | 1,203
US Treasury Bill Securities [Member] |  |  |
Debt Securities, Available-for-sale, Amortized Cost |  | 13,848 | 1,669
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax |  |  |
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax |  | (114) | (17)
Debt Securities, Available-for-sale |  | 13,734 | 1,652
Corporate Bond Securities [Member] |  |  |
Debt Securities, Available-for-sale, Amortized Cost |  | 3,966 | 6,327
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax |  | 1 | 38
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax |  | (416) | (33)
Debt Securities, Available-for-sale |  | 3,551 | 6,332
Municipal Bonds [Member] |  |  |
Debt Securities, Available-for-sale, Amortized Cost |  | 3,035 | 4,825
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax |  |  |
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax |  | (3) |
Debt Securities, Available-for-sale |  | $ 3,032 | $ 4,825
[1] | Each of the certificates of deposit held by the Company has a CUSIP, was purchased in the secondary market through a broker and may be sold in the secondary market.

X
- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 + Details
Name: | us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 + Details
Name: | us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454 + Details
Name: | us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=124260329&loc=d3e26610-111562 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 + Details
Name: | us-gaap_AvailableForSaleSecuritiesDebtSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_InformationByCategoryOfDebtSecurityAxis=us-gaap_CertificatesOfDepositMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InformationByCategoryOfDebtSecurityAxis=us-gaap_USTreasuryBillSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InformationByCategoryOfDebtSecurityAxis=us-gaap_CorporateBondSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InformationByCategoryOfDebtSecurityAxis=us-gaap_MunicipalBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |