XML 77 R66.htm IDEA: XBRL DOCUMENT
v3.25.3

Commitments and Contingencies (Details) | Feb. 01, 2023 USD ($) | Sep. 30, 2025 USD ($) meter account | Dec. 31, 2024 USD ($)
--- | --- | --- | ---
Loss Contingencies [Line Items] |  |  |
ICFA fee liability |  | $ 900,000 | $ 900,000
Asset retirement obligations, noncurrent |  | 1,100,000 | 700,000
Red Rock Utilities |  |  |
Loss Contingencies [Line Items] |  |  |
Growth premium payable |  | 750 |
Farmers Water Company |  |  |
Loss Contingencies [Line Items] |  |  |
Growth premium payable | $ 1,000 |  |
Maximum payout of growth premium receivable | $ 3,500,000 |  |
Growth premium, obligation period, after establishment of new account | 10 years |  |
Growth premium, obligation period, after closing date | 10 years |  |
Growth premium liability |  | 1,200,000 | 1,200,000
Growth premium, obligation period, from acquisition date | 20 years |  |
Red Rock Utilities |  |  |
Loss Contingencies [Line Items] |  |  |
Growth premium liability |  | $ 700,000 | $ 700,000
Number of meters installed | meter |  | 0 |
Number of accounts established | account |  | 0 |

X
- Definition Business Combination, Growth Premium Liability + References No definition available. + Details
Name: | gwrs_BusinessCombinationGrowthPremiumLiability
Namespace Prefix: | gwrs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Growth Premium, Obligation Period, After Closing Date + References No definition available. + Details
Name: | gwrs_GrowthPremiumObligationPeriodAfterClosingDate
Namespace Prefix: | gwrs_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Growth Premium, Obligation Period, After Establishment Of New Account + References No definition available. + Details
Name: | gwrs_GrowthPremiumObligationPeriodAfterEstablishmentOfNewAccount
Namespace Prefix: | gwrs_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Growth Premium, Obligation Period, From Acquisition Date + References No definition available. + Details
Name: | gwrs_GrowthPremiumObligationPeriodFromAcquisitionDate
Namespace Prefix: | gwrs_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Growth Premium Payable For Each New Meter Installed + References No definition available. + Details
Name: | gwrs_GrowthPremiumPayableForEachNewMeterInstalled
Namespace Prefix: | gwrs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition ICFA Fee Liability + References No definition available. + Details
Name: | gwrs_ICFAFeeLiability
Namespace Prefix: | gwrs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Maximum payout of growth premium receivable. + References No definition available. + Details
Name: | gwrs_MaximumPayoutOfGrowthPremiumReceivable
Namespace Prefix: | gwrs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Number Of Accounts Established + References No definition available. + Details
Name: | gwrs_NumberOfAccountsEstablished
Namespace Prefix: | gwrs_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Meters Installed + References No definition available. + Details
Name: | gwrs_NumberOfMetersInstalled
Namespace Prefix: | gwrs_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Noncurrent portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481850/410-20-50-1 + Details
Name: | us-gaap_AssetRetirementObligationsNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-9 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483076/450-20-50-4 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483076/450-20-50-9 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 720 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483359/720-20-50-1 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 27 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482395/460-10-55-27 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483076/450-20-50-9 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483076/450-20-50-4 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482425/460-10-50-3 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483076/450-20-50-1 + Details
Name: | us-gaap_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | gwrs_UtilityAxis=gwrs_RedRockUtilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=gwrs_FarmersWaterCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=gwrs_RedRockUtilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |