XML 30 R44.htm IDEA: XBRL DOCUMENT
v3.19.3

Fair Value of Financial Instruments (Details) - USD ($) | Jun. 30, 2019 | Jun. 30, 2018
--- | --- | ---
Available-for-Sale Securities |  |
Mutual funds |  | $ 1,728,000
Held-to-maturity securities, maturities less than 1 year |  | 1,328,000
Held-to-maturity securities, maturities from 91-360 days |  | 495,000
Held-to-maturity securities, maturities over 360 days |  | 50,000
Investments |  | 3,601,000
Mutual funds, fair value |  | 1,728,000
Held-to-maturity securities, maturities less than 1 year, fair value |  | 1,328,000
Held-to-maturity securities, maturities from 91-360 days, fair value |  | 495,000
Held-to-maturity securities, maturities over 360 days, fair value |  | 50,000
Investments, fair value | $ 0 | 3,601,000
Level 1 |  |
Available-for-Sale Securities |  |
Mutual funds, fair value |  | 1,728,000
Held-to-maturity securities, maturities less than 1 year, fair value |  | 0
Held-to-maturity securities, maturities from 91-360 days, fair value |  | 0
Held-to-maturity securities, maturities over 360 days, fair value |  | 0
Investments, fair value |  | 1,728,000
Level 2 |  |
Available-for-Sale Securities |  |
Mutual funds, fair value |  | 0
Held-to-maturity securities, maturities less than 1 year, fair value |  | 1,328,000
Held-to-maturity securities, maturities from 91-360 days, fair value |  | 495,000
Held-to-maturity securities, maturities over 360 days, fair value |  | 50,000
Investments, fair value |  | 1,873,000
Level 3 |  |
Available-for-Sale Securities |  |
Mutual funds, fair value |  | 0
Held-to-maturity securities, maturities less than 1 year, fair value |  | 0
Held-to-maturity securities, maturities from 91-360 days, fair value |  | 0
Held-to-maturity securities, maturities over 360 days, fair value |  | 0
Investments, fair value |  | $ 0

X
- Definition Held-To-Maturity Securities, Debt Maturities, 91 To 360 Days, Fair Value + References No definition available. + Details
Name: | astc_HeldToMaturitySecuritiesDebtMaturities91To360DaysFairValue
Namespace Prefix: | astc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Held-To-Maturity Securities, Debt Maturities, 91 To 360 Days, Net Carrying Amount + References No definition available. + Details
Name: | astc_HeldToMaturitySecuritiesDebtMaturities91To360DaysNetCarryingAmount
Namespace Prefix: | astc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Held-To-Maturity Securities, Debt Maturities, Over 360 Days, Fair Value + References No definition available. + Details
Name: | astc_HeldToMaturitySecuritiesDebtMaturitiesOver360DaysFairValue
Namespace Prefix: | astc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Held-To-Maturity Securities, Debt Maturities, Over 360 Days, Net Carrying Amount + References No definition available. + Details
Name: | astc_HeldToMaturitySecuritiesDebtMaturitiesOver360DaysNetCarryingAmount
Namespace Prefix: | astc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This element represents the carrying value of the mutual funds. + References No definition available. + Details
Name: | astc_MutualFundsCarryingValue
Namespace Prefix: | astc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This element represents amount of fair value for mutual funds. + References No definition available. + Details
Name: | astc_MutualFundsFairValue
Namespace Prefix: | astc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References No definition available. + Details
Name: | us-gaap_AvailableForSaleSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in next fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (f)(1) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=75019621&loc=d3e62586-112803 + Details
Name: | us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in next fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=75019621&loc=d3e62586-112803 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (f)(1) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563 + Details
Name: | us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Sum of the carrying amounts as of the balance sheet date of all investments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(h)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_Investments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |