XML 55 R41.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Investments - Carrying Value (Details) - USD ($) $ in Thousands | Jun. 30, 2017 | Jun. 30, 2016
--- | --- | ---
Schedule of Held-to-maturity Securities [Line Items] |  |
Short-Term Investments | $ 10,900 | $ 17,102
Long-Term Investments | 1,990 | 4,208
Mutual Funds - Corporate & Government Debt |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Short-Term Investments | 9,043 | 12,807
Long-Term Investments | 0 | 0
Time Deposits | Maturities from 1-90 days |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Short-Term Investments | 0 | 2,243
Long-Term Investments | 0 | 0
Time Deposits | Maturities from 91-360 days |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Short-Term Investments | 250 | 1,699
Long-Term Investments | 0 | 0
Time Deposits | Maturities over 360 days |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Short-Term Investments | 0 | 0
Long-Term Investments | 549 | 1,048
Fixed Income Bonds | Maturities less than 1 year |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Short-Term Investments | 1,607 | 353
Long-Term Investments | 0 | 0
Fixed Income Bonds | Maturities from 1-3 years |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Short-Term Investments | 0 | 0
Long-Term Investments | $ 1,441 | $ 3,160

X
- Definition The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LongTermInvestments
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_ScheduleOfHeldToMaturitySecuritiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)(g)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(4)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_ShortTermInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_InvestmentTypeAxis=astc_MutualFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_BankTimeDepositsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | astc_InvestmentsMaturityPeriodsAxis=astc_Maturitiesfrom190daysMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | astc_InvestmentsMaturityPeriodsAxis=astc_Maturitiesfrom91360daysMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | astc_InvestmentsMaturityPeriodsAxis=astc_Maturitiesover360daysMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_FixedIncomeInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | astc_InvestmentsMaturityPeriodsAxis=astc_Maturitieslessthan1yearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | astc_InvestmentsMaturityPeriodsAxis=astc_Maturitiesfrom13yearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |