$GWRS
Global Water Resources, Inc. Stock $gwrs

$gwrs Overview Financials Valuation SEC Filings Company Website

2020 Form 10-K Financial Statement

#000143472821000087 Filed on March 04, 2021

Income Statement

Concept	2020	2019 Q4	2019
Revenue	$38.63M	$8.685M	$35.47M
YoY Change	8.9%	5.23%	-0.12%
Cost Of Revenue	$0.00	$390.0K	$1.680M
YoY Change	-100.0%	-13.33%	5.0%
Gross Profit	$38.63M	$8.290M	$33.79M
YoY Change	14.32%	6.28%	-0.38%
Gross Profit Margin	100.01%	95.45%	95.26%
Selling, General & Admin	$22.26M	$4.960M	$18.48M
YoY Change	20.45%	21.57%	7.57%
% of Gross Profit	57.62%	59.83%	54.69%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$9.031M	$2.370M	$8.353M
YoY Change	8.12%	20.3%	11.84%
% of Gross Profit	23.38%	28.59%	24.72%
Operating Expenses	$31.29M	$7.340M	$28.51M
YoY Change	9.76%	21.12%	8.63%
Operating Profit	$7.335M	$950.0K	$6.961M
YoY Change	5.37%	-45.56%	-24.9%
Interest Expense	$5.377M	-$1.310M	$5.388M
YoY Change	-0.2%	0.77%	2.53%
% of Operating Profit	73.31%	-137.89%	77.4%
Other Income/Expense, Net	-$5.459M	$180.0K	-$3.575M
YoY Change	52.7%	80.0%	-18.45%
Pretax Income	$1.876M	-$170.0K	$3.386M
YoY Change	-44.6%	-131.02%	-30.69%
Income Tax	$771.0K	$80.00K	$1.162M
% Of Pretax Income	41.1%		34.32%
Net Earnings	$1.105M	-$250.0K	$2.224M
YoY Change	-50.31%	135.85%	-28.33%
Net Earnings / Revenue	2.86%	-2.88%	6.27%
Basic Earnings Per Share	$0.05		$0.10
Diluted Earnings Per Share	$0.05	-$11.61K	$0.10
COMMON SHARES
Basic Shares Outstanding	22.52M shares	21.54M shares	21.52M shares
Diluted Shares Outstanding	22.57M shares		21.53M shares

Balance Sheet

Concept	2020	2019 Q4	2019
SHORT-TERM ASSETS
Cash & Short-Term Investments	$18.00M	$7.500M	$7.500M
YoY Change	140.0%	-41.41%	-41.41%
Cash & Equivalents	$18.00M	$7.513M	$7.500M
Short-Term Investments
Other Short-Term Assets	$1.000M	$700.0K	$700.0K
YoY Change	42.86%	0.0%	0.0%
Inventory
Prepaid Expenses
Receivables	$4.500M	$1.631M	$3.700M
Other Receivables	$0.00	$400.0K	$400.0K
Total Short-Term Assets	$23.50M	$12.29M	$12.30M
YoY Change	91.06%	-29.08%	-28.9%
LONG-TERM ASSETS
Property, Plant & Equipment	$238.9M	$233.6M	$233.6M
YoY Change	2.27%	2.86%	2.86%
Goodwill		$4.398M
YoY Change		66.65%
Intangibles		$12.55M
YoY Change		-3.22%
Long-Term Investments		$0.00	$0.00
YoY Change		-100.0%	-100.0%
Other Assets	$5.300M	$20.27M	$3.300M
YoY Change	60.61%	12.14%	37.5%
Total Long-Term Assets	$259.9M	$253.8M	$253.8M
YoY Change	2.4%	3.55%	3.51%
TOTAL ASSETS
Total Short-Term Assets	$23.50M	$12.29M	$12.30M
Total Long-Term Assets	$259.9M	$253.8M	$253.8M
Total Assets	$283.4M	$266.1M	$266.1M
YoY Change	6.5%	1.39%	1.37%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$500.0K	$992.0K	$1.000M
YoY Change	-50.0%	64.24%	66.67%
Accrued Expenses	$7.700M	$7.546M	$7.000M
YoY Change	10.0%	1.09%	0.0%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$2.000M	$100.0K	$100.0K
YoY Change	1900.0%
Total Short-Term Liabilities	$12.40M	$10.10M	$10.10M
YoY Change	22.77%	5.47%	5.21%
LONG-TERM LIABILITIES
Long-Term Debt	$112.7M	$114.7M	$114.7M
YoY Change	-1.74%	0.17%	0.17%
Other Long-Term Liabilities	$122.6M	$1.669M	$111.8M
YoY Change	9.66%	152.88%	5.27%
Total Long-Term Liabilities	$235.3M	$231.3M	$226.5M
YoY Change	3.89%	2.81%	2.63%
TOTAL LIABILITIES
Total Short-Term Liabilities	$12.40M	$10.10M	$10.10M
Total Long-Term Liabilities	$235.3M	$231.3M	$226.5M
Total Liabilities	$251.3M	$241.4M	$241.4M
YoY Change	4.1%	2.92%	2.9%
SHAREHOLDERS EQUITY
Retained Earnings		$0.00
YoY Change
Common Stock		$24.67M
YoY Change		-11.48%
Preferred Stock
YoY Change
Treasury Stock (at cost)		$1.000K
YoY Change		-200.0%
Treasury Stock Shares		99.04K shares
Shareholders Equity	$32.20M	$24.67M	$24.70M
YoY Change
Total Liabilities & Shareholders Equity	$283.4M	$266.1M	$266.1M
YoY Change	6.5%	1.39%	1.37%

Cashflow Statement

Concept	2020	2019 Q4	2019
OPERATING ACTIVITIES
Net Income	$1.105M	-$250.0K	$2.224M
YoY Change	-50.31%	135.85%	-28.33%
Depreciation, Depletion And Amortization	$9.031M	$2.370M	$8.353M
YoY Change	8.12%	20.3%	11.84%
Cash From Operating Activities	$14.57M	$390.0K	$11.57M
YoY Change	25.94%	-65.49%	2.29%
INVESTING ACTIVITIES
Capital Expenditures	$9.131M	-$3.400M	$11.19M
YoY Change	-18.38%	144.6%	133.7%
Acquisitions
YoY Change
Other Investing Activities	$9.000K	$1.130M	-$131.0K
YoY Change	-106.87%	-118.93%	-325.86%
Cash From Investing Activities	-$9.442M	-$2.280M	-$10.06M
YoY Change	-6.11%	-69.02%	-24.5%
FINANCING ACTIVITIES
Cash Dividend Paid	$6.539M		$6.165M
YoY Change	6.07%		6.46%
Common Stock Issuance & Retirement, Net	$11.74M
YoY Change
Debt Paid & Issued, Net	$22.00K		$39.00K
YoY Change	-43.59%
Cash From Financing Activities	$7.086M	-1.150M	-$5.612M
YoY Change	-226.27%	-7.26%	-158.91%
NET CHANGE
Cash From Operating Activities	$14.57M	390.0K	$11.57M
Cash From Investing Activities	-$9.442M	-2.280M	-$10.06M
Cash From Financing Activities	$7.086M	-1.150M	-$5.612M
Net Change In Cash	$12.21M	-3.040M	-$4.102M
YoY Change	-397.66%	-59.3%	-154.6%
FREE CASH FLOW
Cash From Operating Activities	$14.57M	$390.0K	$11.57M
Capital Expenditures	$9.131M	-$3.400M	$11.19M
Free Cash Flow	$5.435M	$3.790M	$379.0K
YoY Change	1334.04%	50.4%	-94.19%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2020Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	8000000.0	USD
CY2020	us-gaap	Revenue Performance Obligation Description Of Payment Terms RevenuePerformanceObligationDescriptionOfPaymentTerms	within 15 days of billing
CY2020Q4	us-gaap	Goodwill Goodwill	4600000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	400000	USD
CY2020	gwrs	Employee Medical Claims Paid EmployeeMedicalClaimsPaid	900000	USD
CY2019	gwrs	Employee Medical Claims Paid EmployeeMedicalClaimsPaid	300000	USD
CY2020	us-gaap	Royalty Income Nonoperating RoyaltyIncomeNonoperating	0	USD
CY2019	us-gaap	Royalty Income Nonoperating RoyaltyIncomeNonoperating	400000	USD
CY2020	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2020	dei	Amendment Flag AmendmentFlag	false
CY2020	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
CY2020	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2020	dei	Entity Central Index Key EntityCentralIndexKey	0001434728
CY2020	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2020	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020	dei	Entity Ex Transition Period EntityExTransitionPeriod	false
CY2018	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	92000	USD
CY2020	dei	Entity Shell Company EntityShellCompany	false
CY2020	dei	Document Type DocumentType	10-K
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.29
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.29
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.26
CY2020Q4	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	0	USD
CY2019Q4	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	0	USD
CY2019Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	0	USD
CY2020	dei	Document Annual Report DocumentAnnualReport	true
CY2020	dei	Document Period End Date DocumentPeriodEndDate	2020-12-31
CY2020	dei	Document Transition Report DocumentTransitionReport	false
CY2020	dei	Entity Registrant Name EntityRegistrantName	Global Water Resources, Inc.
CY2020	dei	Entity File Number EntityFileNumber	001-37756
CY2020	dei	Entity Address Address Line1 EntityAddressAddressLine1	21410 N. 19th Avenue #220
CY2020	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	90-0632193
CY2020	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2020	dei	Entity Address City Or Town EntityAddressCityOrTown	Phoenix,
CY2020	dei	Entity Address State Or Province EntityAddressStateOrProvince	AZ
CY2020	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	85027
CY2020	dei	City Area Code CityAreaCode	480
CY2020	dei	Local Phone Number LocalPhoneNumber	360-7775
CY2020	dei	Security12b Title Security12bTitle	Common Stock, par value $0.01 per share
CY2020	dei	Trading Symbol TradingSymbol	GWRS
CY2020	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2020	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2020	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2020	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
CY2020	dei	Entity Small Business EntitySmallBusiness	true
CY2020	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	true
CY2020Q2	dei	Entity Public Float EntityPublicFloat	133500000	USD
CY2021Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	22587766	shares
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	340193000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	326303000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	101302000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	92749000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1631000	USD
CY2020Q4	us-gaap	Nontrade Receivables Current NontradeReceivablesCurrent	306000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	238891000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	233554000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	18033000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	7513000	USD
CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	2147000	USD
CY2019Q4	us-gaap	Nontrade Receivables Current NontradeReceivablesCurrent	0	USD
CY2020Q4	us-gaap	Related Party Transaction Due From To Related Party RelatedPartyTransactionDueFromToRelatedParty	0	USD
CY2019Q4	us-gaap	Related Party Transaction Due From To Related Party RelatedPartyTransactionDueFromToRelatedParty	426000	USD
CY2020Q4	us-gaap	Accrued Fees And Other Revenue Receivable AccruedFeesAndOtherRevenueReceivable	2304000	USD
CY2019Q4	us-gaap	Accrued Fees And Other Revenue Receivable AccruedFeesAndOtherRevenueReceivable	2048000	USD
CY2020Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	665000	USD
CY2019Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	675000	USD
CY2020Q4	us-gaap	Assets Current AssetsCurrent	23455000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	12293000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	4600000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	4398000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	11185000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	12554000	USD
CY2020Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	2036000	USD
CY2019Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1715000	USD
CY2020Q4	us-gaap	Deposits Assets Noncurrent DepositsAssetsNoncurrent	9000	USD
CY2019Q4	us-gaap	Deposits Assets Noncurrent DepositsAssetsNoncurrent	0	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	3272000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	1582000	USD
CY2020Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	0	USD
CY2019Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	17000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	21102000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	20266000	USD
CY2020Q4	us-gaap	Assets Assets	283448000	USD
CY2020Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	531000	USD
CY2019Q4	us-gaap	Assets Assets	266113000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	992000	USD
CY2020Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	8261000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	7546000	USD
CY2019Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	0	USD
CY2020Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	4000	USD
CY2020Q4	gwrs	Customer And Meter Deposits CustomerAndMeterDeposits	1558000	USD
CY2019Q4	gwrs	Customer And Meter Deposits CustomerAndMeterDeposits	1445000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	2035000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	117000	USD
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	12389000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	112659000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	10100000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	38627000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	35471000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	114664000	USD
CY2020Q4	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	17843000	USD
CY2019Q4	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	17372000	USD
CY2020Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	7986000	USD
CY2019Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	8803000	USD
CY2020Q4	gwrs	Advances In Aid Of Construction AdvancesInAidOfConstruction	76384000	USD
CY2019Q4	gwrs	Advances In Aid Of Construction AdvancesInAidOfConstruction	67621000	USD
CY2020Q4	us-gaap	Contributions In Aid Of Construction ContributionsInAidOfConstruction	14632000	USD
CY2019Q4	us-gaap	Contributions In Aid Of Construction ContributionsInAidOfConstruction	14520000	USD
CY2020Q4	us-gaap	Business Combination Contingent Consideration Liability Noncurrent BusinessCombinationContingentConsiderationLiabilityNoncurrent	1773000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	3652000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	4919000	USD
CY2019Q4	us-gaap	Business Combination Contingent Consideration Liability Noncurrent BusinessCombinationContingentConsiderationLiabilityNoncurrent	1773000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	3942000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1669000	USD
CY2020Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	238871000	USD
CY2019Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	231341000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	251260000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	241441000	USD
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	60000000	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	22690477	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	21636420	shares
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	227000	USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	216000	USD
CY2020Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	102711	shares
CY2019Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	99039	shares
CY2020Q4	us-gaap	Treasury Stock Value TreasuryStockValue	1000	USD
CY2019Q4	us-gaap	Treasury Stock Value TreasuryStockValue	1000	USD
CY2020Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	31962000	USD
CY2019Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	24457000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	0	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	0	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	32188000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	24672000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	266113000	USD
CY2020	us-gaap	Regulated Operating Revenue Water RegulatedOperatingRevenueWater	18072000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	283448000	USD
CY2019	gwrs	Regulated Operating Revenue Waste Water And Recycled Water Services RegulatedOperatingRevenueWasteWaterAndRecycledWaterServices	19263000	USD
CY2020	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	161000	USD
CY2019	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	65000	USD
CY2020	us-gaap	Revenues Revenues	38627000	USD
CY2019	us-gaap	Revenues Revenues	35471000	USD
CY2019	us-gaap	Regulated Operating Revenue Water RegulatedOperatingRevenueWater	16143000	USD
CY2020	gwrs	Regulated Operating Revenue Waste Water And Recycled Water Services RegulatedOperatingRevenueWasteWaterAndRecycledWaterServices	20394000	USD
CY2020Q4	gwrs	Cumulative Revenue Requirement Increase In Seventh Year CumulativeRevenueRequirementIncreaseInSeventhYear	3645000	USD
CY2020	us-gaap	Public Utilities Approved Return On Equity Percentage PublicUtilitiesApprovedReturnOnEquityPercentage	0.095
CY2020	gwrs	Infrastructure Coordination And Financing Agreements Receipts Percentage Of Hook Up Fee Liability InfrastructureCoordinationAndFinancingAgreementsReceiptsPercentageOfHookUpFeeLiability	0.70
CY2020	gwrs	Infrastructure Coordination And Financing Agreements Receipts Percentage Of Deferred Revenue InfrastructureCoordinationAndFinancingAgreementsReceiptsPercentageOfDeferredRevenue	0.30
CY2017	gwrs	Reversal Of Regulatory Liability ReversalOfRegulatoryLiability	3400000	USD
CY2020	gwrs	Infrastructure Coordination And Financing Agreements Receipts Fee Description InfrastructureCoordinationAndFinancingAgreementsReceiptsFeeDescription	The Company is responsible for assuring the full HUF value is paid from ICFA proceeds, and recorded in its full amount, even if it results in recording less than 30% of the ICFA fee as deferred revenue.
CY2020	gwrs	Infrastructure Coordination And Financing Agreements Receipts Percentage Of Deferred Revenue InfrastructureCoordinationAndFinancingAgreementsReceiptsPercentageOfDeferredRevenue	0.30
CY2020	gwrs	Percentage Of Regulatory Liability Non Current PercentageOfRegulatoryLiabilityNonCurrent	0.70
CY2017	gwrs	Percentage Reversal Of Regulatory Liability PercentageReversalOfRegulatoryLiability	0.30
CY2017	gwrs	Percentage Reversal Of Regulatory Liability PercentageReversalOfRegulatoryLiability	0.30
CY2020	gwrs	Percentage Of Regulatory Liability Non Current PercentageOfRegulatoryLiabilityNonCurrent	0.70
CY2017	gwrs	Percentage Reversal Of Regulatory Liability PercentageReversalOfRegulatoryLiability	0.30
CY2020	us-gaap	Utilities Operating Expense Maintenance And Operations UtilitiesOperatingExpenseMaintenanceAndOperations	9539000	USD
CY2019	us-gaap	Utilities Operating Expense Maintenance And Operations UtilitiesOperatingExpenseMaintenanceAndOperations	7237000	USD
CY2020	gwrs	Utilities Operating Expense Maintenance And Operations Related Party UtilitiesOperatingExpenseMaintenanceAndOperationsRelatedParty	0	USD
CY2019	gwrs	Utilities Operating Expense Maintenance And Operations Related Party UtilitiesOperatingExpenseMaintenanceAndOperationsRelatedParty	1678000	USD
CY2020	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	12722000	USD
CY2019	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	11242000	USD
CY2020	us-gaap	Depreciation Depreciation	9031000	USD
CY2019	us-gaap	Depreciation Depreciation	8353000	USD
CY2020	us-gaap	Operating Expenses OperatingExpenses	31292000	USD
CY2019	us-gaap	Operating Expenses OperatingExpenses	28510000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	7335000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	6961000	USD
CY2020	us-gaap	Investment Income Interest InvestmentIncomeInterest	93000	USD
CY2019	us-gaap	Investment Income Interest InvestmentIncomeInterest	203000	USD
CY2020Q4	gwrs	Cumulative Revenue Requirement Increase In Second Year CumulativeRevenueRequirementIncreaseInSecondYear	1970000	USD
CY2020	us-gaap	Interest Expense InterestExpense	5377000	USD
CY2019	us-gaap	Interest Expense InterestExpense	5388000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-175000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1309000	USD
CY2020	gwrs	Other Non Operating Income Expense Related Party OtherNonOperatingIncomeExpenseRelatedParty	0	USD
CY2019	gwrs	Other Non Operating Income Expense Related Party OtherNonOperatingIncomeExpenseRelatedParty	301000	USD
CY2020	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-5459000	USD
CY2019	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-3575000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1876000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	3386000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	771000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1162000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	1105000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	2224000	USD
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.05
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.10
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.05
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.10
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.29
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.29
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	22518636	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	21516620	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	22574093	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	21531594	shares
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	27871000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Dividends In Excess Of Retained Earnings AdjustmentsToAdditionalPaidInCapitalDividendsInExcessOfRetainedEarnings	6172000	USD
CY2019	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	413000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation And Exercise Of Stock Options AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions	336000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	2224000	USD
CY2019Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	24457000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	24672000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Dividends In Excess Of Retained Earnings AdjustmentsToAdditionalPaidInCapitalDividendsInExcessOfRetainedEarnings	6539000	USD
CY2020	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	11519000	USD
CY2020	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	0	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation And Exercise Of Stock Options AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions	1432000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	1105000	USD
CY2020Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	31962000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	32188000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	1105000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	2224000	USD
CY2020	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	3286000	USD
CY2019	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	2051000	USD
CY2020	us-gaap	Depreciation Depreciation	9031000	USD
CY2019	us-gaap	Depreciation Depreciation	8353000	USD
CY2020	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	134000	USD
CY2020Q4	gwrs	Advances In Aid Of Construction Transferred To Contributions In Aid Of Construction AdvancesInAidOfConstructionTransferredToContributionsInAidOfConstruction	100000	USD
CY2019	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	88000	USD
CY2020	us-gaap	Gain Loss On Sale Of Commodity Contracts GainLossOnSaleOfCommodityContracts	0	USD
CY2019	us-gaap	Gain Loss On Sale Of Commodity Contracts GainLossOnSaleOfCommodityContracts	1000000	USD
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-79000	USD
CY2020	us-gaap	Other Nonoperating Gains Losses OtherNonoperatingGainsLosses	-552000	USD
CY2019	us-gaap	Other Nonoperating Gains Losses OtherNonoperatingGainsLosses	-5000	USD
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	140000	USD
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	50000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1275000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	570000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	641000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	193000	USD
CY2020	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	121000	USD
CY2019	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	60000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable And Other Operating Liabilities IncreaseDecreaseInAccountsPayableAndOtherOperatingLiabilities	-176000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Other Operating Liabilities IncreaseDecreaseInAccountsPayableAndOtherOperatingLiabilities	-1584000	USD
CY2019Q4	gwrs	Advances In Aid Of Construction Transferred To Contributions In Aid Of Construction AdvancesInAidOfConstructionTransferredToContributionsInAidOfConstruction	2900000	USD
CY2020Q4	gwrs	Collective Revenue Requirement Phase In Year Three CollectiveRevenueRequirementPhaseInYearThree	335000	USD
CY2020Q4	gwrs	Cumulative Revenue Requirement Increase In Third Year CumulativeRevenueRequirementIncreaseInThirdYear	2305000	USD
CY2020	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	321000	USD
CY2019	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-75000	USD
CY2020	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	2852000	USD
CY2019	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	908000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	14566000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	11566000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	9131000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	11187000	USD
CY2020	us-gaap	Payments For Proceeds From Previous Acquisition PaymentsForProceedsFromPreviousAcquisition	302000	USD
CY2019	us-gaap	Payments For Proceeds From Previous Acquisition PaymentsForProceedsFromPreviousAcquisition	0	USD
CY2020	us-gaap	Proceeds From Sales Of Business Affiliate And Productive Assets ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets	0	USD
CY2019	us-gaap	Proceeds From Sales Of Business Affiliate And Productive Assets ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets	1000000	USD
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	9000	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-131000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-9442000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-10056000	USD
CY2020	us-gaap	Payments Of Dividends PaymentsOfDividends	6539000	USD
CY2020Q4	gwrs	Cumulative Revenue Requirement Increase In Fourth Year CumulativeRevenueRequirementIncreaseInFourthYear	2640000	USD
CY2019	us-gaap	Payments Of Dividends PaymentsOfDividends	6165000	USD
CY2020	us-gaap	Proceeds From Advances For Construction ProceedsFromAdvancesForConstruction	3304000	USD
CY2019	us-gaap	Proceeds From Advances For Construction ProceedsFromAdvancesForConstruction	1199000	USD
CY2020	us-gaap	Repayments Of Advances For Construction RepaymentsOfAdvancesForConstruction	992000	USD
CY2019	us-gaap	Repayments Of Advances For Construction RepaymentsOfAdvancesForConstruction	952000	USD
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	414000	USD
CY2020	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	109000	USD
CY2019	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	64000	USD
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	35000	USD
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	22000	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	39000	USD
CY2020	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	11738000	USD
CY2019	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	0	USD
CY2020	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	73000	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	40000	USD
CY2020	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	221000	USD
CY2020Q4	gwrs	Refundable Advances In Aid Of Construction RefundableAdvancesInAidOfConstruction	76400000	USD
CY2019	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	0	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	7086000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-5612000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	12210000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-4102000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	9095000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	13197000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	21305000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	9095000	USD
CY2020Q4	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	18033000	USD
CY2019Q4	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	7513000	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	3272000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	1582000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	21305000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	9095000	USD
CY2019Q4	gwrs	Refundable Advances In Aid Of Construction RefundableAdvancesInAidOfConstruction	67600000	USD
CY2020Q4	gwrs	Number Of Water And Waste Water Utilities Owned NumberOfWaterAndWasteWaterUtilitiesOwned	16	utility
CY2020Q4	gwrs	Number Of People Served NumberOfPeopleServed	66000	people
CY2020Q4	gwrs	Number Of Homes Served NumberOfHomesServed	24000	home
CY2020Q4	gwrs	Number Of Homes Served NumberOfHomesServed	24000	home
CY2020Q4	gwrs	Number Of Homes Served NumberOfHomesServed	24000	home
CY2020Q4	gwrs	Area Of Certificated Service Areas AreaOfCertificatedServiceAreas	366	sqmi
CY2020Q4	gwrs	Number Of Wholly Owned Subsidiaries Serviced NumberOfWhollyOwnedSubsidiariesServiced	11	subsidiary
CY2006	us-gaap	Revenues Revenues	4900000	USD
CY2020	us-gaap	Revenues Revenues	38600000	USD
CY2006Q4	gwrs	Number Of Water Service Connections NumberOfWaterServiceConnections	8113	service_connection
CY2020Q4	gwrs	Number Of Water Service Connections NumberOfWaterServiceConnections	49158	service_connection
CY2020Q4	gwrs	Number Of Water Service Connections To Serve NumberOfWaterServiceConnectionsToServe	2000000000000	service_connection
CY2013Q3	gwrs	Gross Amount To Be Received From Transfer Of Project Agreement GrossAmountToBeReceivedFromTransferOfProjectAgreement	4100000	USD
CY2020Q4	gwrs	Collective Revenue Requirement Phase In Year Five CollectiveRevenueRequirementPhaseInYearFive	335000	USD
CY2020Q4	gwrs	Collective Revenue Requirement Phase In Year Six CollectiveRevenueRequirementPhaseInYearSix	335000	USD
CY2020Q4	gwrs	Cumulative Revenue Requirement Increase In Fifth Year CumulativeRevenueRequirementIncreaseInFifthYear	2975000	USD
	us-gaap	Proceeds From Sales Of Business Affiliate And Productive Assets ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets	4100000	USD
CY2019	us-gaap	Proceeds From Sales Of Business Affiliate And Productive Assets ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets	1000000.0	USD
CY2020	gwrs	Growth Premiums Received GrowthPremiumsReceived	200000	USD
CY2019	gwrs	Growth Premiums Received GrowthPremiumsReceived	300000	USD
CY2020Q4	gwrs	Meters Installed In The Growth Premium Area MetersInstalledInTheGrowthPremiumArea	0	meter
CY2020Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	2000000.0	USD
CY2019Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1700000	USD
CY2020	gwrs	Carryingcostonregliabilitiesandassets Carryingcostonregliabilitiesandassets	0.0425
CY2020Q3	gwrs	Proposed Collective Revenue Requirement Increase ProposedCollectiveRevenueRequirementIncrease	4600000	USD
CY2020Q1	us-gaap	Sale Of Stock Number Of Shares Issued In Transaction SaleOfStockNumberOfSharesIssuedInTransaction	870000	shares
CY2020Q1	us-gaap	Sale Of Stock Price Per Share SaleOfStockPricePerShare	12.50
CY2020Q1	us-gaap	Sale Of Stock Consideration Received On Transaction SaleOfStockConsiderationReceivedOnTransaction	10900000	USD
CY2020Q1	us-gaap	Option Indexed To Issuers Equity Indexed Shares OptionIndexedToIssuersEquityIndexedShares	130000	shares
CY2020Q1	us-gaap	Sale Of Stock Price Per Share SaleOfStockPricePerShare	12.50
CY2020Q1	us-gaap	Sale Of Stock Consideration Received On Transaction SaleOfStockConsiderationReceivedOnTransaction	1600000	USD
CY2020Q1	us-gaap	Sale Of Stock Consideration Received Per Transaction SaleOfStockConsiderationReceivedPerTransaction	12500000	USD
CY2020Q1	us-gaap	Sale Of Stock Consideration Received On Transaction SaleOfStockConsiderationReceivedOnTransaction	11500000	USD
CY2020Q1	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	1000000.0	USD
CY2012Q3	gwrs	Number Of Utilities To Adjust Revenue Requirement NumberOfUtilitiesToAdjustRevenueRequirement	7	utility
CY2012Q3	us-gaap	Public Utilities Requested Rate Increase Decrease Percentage PublicUtilitiesRequestedRateIncreaseDecreasePercentage	0.28
CY2020	us-gaap	Public Utilities Approved Rate Increase Decrease Amount PublicUtilitiesApprovedRateIncreaseDecreaseAmount	3600000	USD
CY2020Q4	gwrs	Collective Revenue Requirement Phase In Year One CollectiveRevenueRequirementPhaseInYearOne	1083000	USD
CY2020Q4	gwrs	Cumulative Revenue Requirement Increase In First Year CumulativeRevenueRequirementIncreaseInFirstYear	1083000	USD
CY2020Q4	gwrs	Collective Revenue Requirement Phase In Year Four CollectiveRevenueRequirementPhaseInYearFour	335000	USD
CY2020	gwrs	Infrastructure Coordination And Financing Agreements Receipts Percentage Of Hook Up Fee Liability InfrastructureCoordinationAndFinancingAgreementsReceiptsPercentageOfHookUpFeeLiability	0.70
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	3272000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	1582000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2020Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	625913	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Non Option Equity Instruments Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber	128327	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Non Option Equity Instruments Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber	128327	shares
CY2019Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	632500	shares
CY2020	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	100000	USD
CY2019	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	100000	USD
CY2020Q4	gwrs	Collective Revenue Requirement Phase In Year Two CollectiveRevenueRequirementPhaseInYearTwo	887000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	2352000	USD
CY2020Q4	gwrs	Cumulative Revenue Requirement Increase In Sixth Year CumulativeRevenueRequirementIncreaseInSixthYear	3310000	USD
CY2020Q4	gwrs	Collective Revenue Requirement Phase In Year Seven CollectiveRevenueRequirementPhaseInYearSeven	335000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	1717000	USD
CY2020Q4	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	17843000	USD
CY2019Q4	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	17372000	USD
CY2020Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	18580000	USD
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	17959000	USD
CY2020Q4	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	17800000	USD
CY2019Q4	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	17400000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	340193000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	326303000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	101302000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	92749000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	238891000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	233554000	USD
CY2020Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	2352000	USD
CY2019Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	1718000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	205000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	87000	USD
CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	2147000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1631000	USD
CY2019Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	87000	USD
CY2020	us-gaap	Valuation Allowances And Reserves Charged To Cost And Expense ValuationAllowancesAndReservesChargedToCostAndExpense	169000	USD
CY2020	us-gaap	Valuation Allowances And Reserves Charged To Other Accounts ValuationAllowancesAndReservesChargedToOtherAccounts	7000	USD
CY2020	us-gaap	Valuation Allowances And Reserves Deductions ValuationAllowancesAndReservesDeductions	58000	USD
CY2020Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	205000	USD
CY2018Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	145000	USD
CY2019	us-gaap	Valuation Allowances And Reserves Charged To Cost And Expense ValuationAllowancesAndReservesChargedToCostAndExpense	56000	USD
CY2019	us-gaap	Valuation Allowances And Reserves Charged To Other Accounts ValuationAllowancesAndReservesChargedToOtherAccounts	24000	USD
CY2019	us-gaap	Valuation Allowances And Reserves Deductions ValuationAllowancesAndReservesDeductions	138000	USD
CY2019Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	87000	USD
CY2020Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	1741000	USD
CY2020Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	1741000	USD
CY2019Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	1741000	USD
CY2019Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	1741000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	25384000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	15940000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	9444000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	25384000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	14571000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	10813000	USD
CY2020Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	27125000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	15940000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	11185000	USD
CY2019Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	27125000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	14571000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	12554000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	2093000	USD
CY2020Q4	us-gaap	Deferred Compensation Liability Current DeferredCompensationLiabilityCurrent	1399000	USD
CY2019Q4	us-gaap	Deferred Compensation Liability Current DeferredCompensationLiabilityCurrent	2008000	USD
CY2020Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	1191000	USD
CY2019Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	1095000	USD
CY2020Q4	us-gaap	Interest Payable Current InterestPayableCurrent	472000	USD
CY2019Q4	us-gaap	Interest Payable Current InterestPayableCurrent	475000	USD
CY2020Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	550000	USD
CY2019Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	519000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	697000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	697000	USD
CY2020Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	3027000	USD
CY2020Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	8261000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	7546000	USD
CY2020Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	127724000	USD
CY2019Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	121075000	USD
CY2020Q4	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	838000	USD
CY2019Q4	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	838000	USD
CY2020Q4	us-gaap	Fair Value Net Asset Liability FairValueNetAssetLiability	133969000	USD
CY2019Q4	us-gaap	Fair Value Net Asset Liability FairValueNetAssetLiability	125377000	USD
CY2020Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	115000	USD
CY2020Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	136000	USD
CY2019Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	110000	USD
CY2019Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	251000	USD
CY2020Q4	us-gaap	Deferred Finance Costs Current Net DeferredFinanceCostsCurrentNet	0	USD
CY2019Q4	us-gaap	Deferred Finance Costs Current Net DeferredFinanceCostsCurrentNet	0	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	2035000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	112659000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	117000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	114664000	USD
CY2020Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	251000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	1920000	USD
CY2020Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	115000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	3833000	USD
CY2020Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	88000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	3833000	USD
CY2020Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	47000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	3833000	USD
CY2020Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	1000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	3833000	USD
CY2020Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	0	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	97751000	USD
CY2020Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	0	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	115003000	USD
CY2020Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	11000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	115003000	USD
CY2020Q4	us-gaap	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments	240000	USD
CY2020Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	0	USD
CY2019Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	0	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	1710000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	270000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1980000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-1086000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-123000	USD
CY2020	us-gaap	Deferred Federal State And Local Tax Expense Benefit DeferredFederalStateAndLocalTaxExpenseBenefit	-1209000	USD
CY2020	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	624000	USD
CY2020	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	147000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	771000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	314000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	220000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	534000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	670000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-42000	USD
CY2019	us-gaap	Deferred Federal State And Local Tax Expense Benefit DeferredFederalStateAndLocalTaxExpenseBenefit	628000	USD
CY2019	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	984000	USD
CY2019	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	178000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1162000	USD
CY2020Q4	gwrs	Deferred Tax Assets Taxable Meter Deposits DeferredTaxAssetsTaxableMeterDeposits	22000	USD
CY2019Q4	gwrs	Deferred Tax Assets Taxable Meter Deposits DeferredTaxAssetsTaxableMeterDeposits	23000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	453000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssets	272000	USD
CY2020Q4	gwrs	Deferred Tax Assets Deferred Gain On Sale Of Company DeferredTaxAssetsDeferredGainOnSaleOfCompany	0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	224000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	224000	USD
CY2019Q4	gwrs	Deferred Tax Assets Deferred Gain On Sale Of Company DeferredTaxAssetsDeferredGainOnSaleOfCompany	1067000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	4438000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	4320000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Equity Method Investments DeferredTaxAssetsEquityMethodInvestments	0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Equity Method Investments DeferredTaxAssetsEquityMethodInvestments	426000	USD
CY2020Q4	gwrs	Deferred Tax Asset Aiac DeferredTaxAssetAIAC	3706000	USD
CY2019Q4	gwrs	Deferred Tax Asset Aiac DeferredTaxAssetAIAC	1264000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	1311000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	1059000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	9701000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	8836000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	9701000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	8836000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssets	286000	USD
CY2020Q4	gwrs	Deferred Tax Liabilities Intangible Asset Acquisition DeferredTaxLiabilitiesIntangibleAssetAcquisition	381000	USD
CY2019Q4	gwrs	Deferred Tax Liabilities Intangible Asset Acquisition DeferredTaxLiabilitiesIntangibleAssetAcquisition	381000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	705000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	807000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	11127000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	11302000	USD
CY2020Q4	gwrs	Deferred Tax Liabilities Gain On Condemnation Of Subsidiaries DeferredTaxLiabilitiesGainOnCondemnationOfSubsidiaries	-8000	USD
CY2019Q4	gwrs	Deferred Tax Liabilities Gain On Condemnation Of Subsidiaries DeferredTaxLiabilitiesGainOnCondemnationOfSubsidiaries	120000	USD
CY2020Q4	us-gaap	Other Liabilities OtherLiabilities	877000	USD
CY2019Q4	us-gaap	Other Liabilities OtherLiabilities	858000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	13354000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	13754000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	3653000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	4918000	USD
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.411
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.349
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	498000	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	9.02
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P7Y
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	558900	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	196000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	8.43
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P4Y4M24D
CY2019Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	335400	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	250000	shares
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	11.26
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	67000	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	7.67
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	49000	shares
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	8.06
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	633000	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	10.12
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P8Y4M24D
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	1915100	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	193000	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	9.40
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P9Y7M6D
CY2020Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	725400	USD
CY2020	us-gaap	Interest Paid InterestPaid	5224000	USD
CY2019	us-gaap	Interest Paid InterestPaid	5228000	USD
CY2020	us-gaap	Payments For Other Taxes PaymentsForOtherTaxes	240000	USD
CY2019	us-gaap	Payments For Other Taxes PaymentsForOtherTaxes	86000	USD
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	586000	USD
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	1500000	USD
CY2020	us-gaap	Debt Instrument Decrease Forgiveness DebtInstrumentDecreaseForgiveness	0	USD
CY2019	us-gaap	Debt Instrument Decrease Forgiveness DebtInstrumentDecreaseForgiveness	31000	USD
CY2020	gwrs	Capital Lease Additions CapitalLeaseAdditions	0	USD
CY2019	gwrs	Capital Lease Additions CapitalLeaseAdditions	296000	USD
CY2018Q3	gwrs	Operating Leases Monthly Rent Expense Of New Agreement OperatingLeasesMonthlyRentExpenseOfNewAgreement	15000	USD
CY2020	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	200000	USD

Files In Submission

Name	View Source	Status
0001434728-21-000087-index-headers.html	Edgar Link	pending
0001434728-21-000087-index.html	Edgar Link	pending
0001434728-21-000087.txt	Edgar Link	pending
0001434728-21-000087-xbrl.zip	Edgar Link	pending
a2020globalwateremployment.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
gwrs-20201231.htm	Edgar Link	pending
gwrs-20201231.xsd	Edgar Link	pending
gwrs-20201231_cal.xml	Edgar Link	unprocessable
gwrs-20201231_def.xml	Edgar Link	unprocessable
gwrs-20201231_g1.jpg	Edgar Link	pending
gwrs-20201231_g2.jpg	Edgar Link	pending
gwrs-20201231_htm.xml	Edgar Link	completed
gwrs-20201231_lab.xml	Edgar Link	unprocessable
gwrs-20201231_pre.xml	Edgar Link	unprocessable
gwrsq42020ex211.htm	Edgar Link	pending
gwrsq42020ex231.htm	Edgar Link	pending
gwrsq42020ex311.htm	Edgar Link	pending
gwrsq42020ex312.htm	Edgar Link	pending
gwrsq42020ex321.htm	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$GWRS
Global Water Resources, Inc. Stock $gwrs

2020 Form 10-K Financial Statement

#000143472821000087 Filed on March 04, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GWRS Global Water Resources, Inc. Stock $gwrs

2020 Form 10-K Financial Statement

#000143472821000087 Filed on March 04, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GWRS
Global Water Resources, Inc. Stock $gwrs