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v3.22.1

Subsequent Event - Additional Information (Details) - Subsequent Event - The Agreement | May 06, 2022 USD ($)
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Subsequent Event [Line Items] |
Maximum amount of borrowing based upon assets | $ 10,000,000
Borrowing base as percentage of loan to value of property | 70.00%
Borrowing base as percentage of forced liquidation value of equipment | 50.00%
Borrowing base as percentage of assets | 80.00%
Agreement term | 2 years
Minimum consolidated tangible net worth | $ 100,000,000
Prime Rate |
Subsequent Event [Line Items] |
Interest rate on borrowed funds | 4.00%
Prime Rate | Minimum |
Subsequent Event [Line Items] |
Interest rate on borrowed funds | 3.25%
Inventory |
Subsequent Event [Line Items] |
Borrowing base as percentage of assets | 50.00%
Borrowing base as percent of credit towards accounts receivable | 100.00%

X
- Definition Line of Credit Facility Borrowing Base as Percent of Assets + References No definition available. + Details
Name: | geos_LineOfCreditFacilityBorrowingBaseAsPercentOfAssets
Namespace Prefix: | geos_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Line of credit facility borrowing base as percent of credit towards accounts receivable. + References No definition available. + Details
Name: | geos_LineOfCreditFacilityBorrowingBaseAsPercentOfCreditTowardsAccountsReceivable
Namespace Prefix: | geos_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line of credit facility borrowing base as percent of forced liquidation value of equipment. + References No definition available. + Details
Name: | geos_LineOfCreditFacilityBorrowingBaseAsPercentOfForcedLiquidationValueOfEquipment
Namespace Prefix: | geos_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line of credit facility borrowing base as percent of loan to value of property. + References No definition available. + Details
Name: | geos_LineOfCreditFacilityBorrowingBaseAsPercentOfLoanToValueOfProperty
Namespace Prefix: | geos_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Maximum Amount Of Line Of Credit Facility Borrowing Based Upon Assets + References No definition available. + Details
Name: | geos_MaximumAmountOfLineOfCreditFacilityBorrowingBasedUponAssets
Namespace Prefix: | geos_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Minimum consolidated tangible net worth. + References No definition available. + Details
Name: | geos_MinimumConsolidatedTangibleNetWorth
Namespace Prefix: | geos_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_LineOfCreditFacilityExpirationPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_DebtInstrumentAxis=geos_TheAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_VariableRateAxis=us-gaap_PrimeRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis=us-gaap_InventoriesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |