$MSEX
MIDDLESEX WATER CO Stock $msex

$msex Overview Financials Valuation SEC Filings Company Website

2020 Q4 Form 10-Q Financial Statement

#000117494720001063 Filed on October 30, 2020

Income Statement

Concept	2020 Q4	2020 Q3	2019 Q3
Revenue	$34.63M	$39.92M	$37.77M
YoY Change	5.77%	5.7%	-2.44%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$5.240M	$4.721M	$4.246M
YoY Change	19.91%	11.19%	7.49%
% of Gross Profit
Operating Expenses	$26.30M	$26.74M	$25.79M
YoY Change	4.45%	3.7%	-0.04%
Operating Profit	$8.331M	$13.18M	$11.98M
YoY Change	10.21%	9.96%	-7.24%
Interest Expense	-$1.970M	$1.906M	$1.996M
YoY Change	-13.6%	-4.51%	-216.05%
% of Operating Profit	-23.65%	14.46%	16.66%
Other Income/Expense, Net	$350.0K	$1.390M	$867.0K
YoY Change	-42.62%	60.32%	4.46%
Pretax Income	$6.700M	$12.67M	$10.85M
YoY Change	13.95%	16.71%	-9.78%
Income Tax	-$1.600M	-$69.00K	-$265.0K
% Of Pretax Income	-23.88%	-0.54%	-2.44%
Net Earnings	$8.307M	$12.74M	$11.12M
YoY Change	2.92%	14.55%	-9.53%
Net Earnings / Revenue	23.99%	31.91%	29.44%
Basic Earnings Per Share	$0.47	$0.73	$0.67
Diluted Earnings Per Share	$0.47	$0.72	$0.67
COMMON SHARES
Basic Shares Outstanding	17.47M shares	17.47M shares	16.61M shares
Diluted Shares Outstanding		17.58M shares	16.76M shares

Balance Sheet

Concept	2020 Q4	2020 Q3	2019 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$4.500M	$5.300M	$3.200M
YoY Change	104.55%	65.63%	-11.11%
Cash & Equivalents	$4.491M	$5.346M	$3.200M
Short-Term Investments
Other Short-Term Assets	$10.00M	$12.20M	$13.00M
YoY Change	4.17%	-6.15%	3.17%
Inventory	$5.100M	$4.800M	$5.200M
Prepaid Expenses	$2.886M	$3.369M
Receivables	$14.57M	$15.57M	$13.40M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$34.12M	$37.87M	$34.70M
YoY Change	17.13%	9.13%	-1.98%
LONG-TERM ASSETS
Property, Plant & Equipment	$813.0M	$782.3M	$694.2M
YoY Change	12.6%	12.69%	14.05%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$84.00K	$1.367M	$158.5M
YoY Change	-95.58%	-99.14%	46.49%
Total Long-Term Assets	$942.3M	$922.0M	$852.7M
YoY Change	6.99%	8.12%	18.86%
TOTAL ASSETS
Total Short-Term Assets	$34.12M	$37.87M	$34.70M
Total Long-Term Assets	$942.3M	$922.0M	$852.7M
Total Assets	$976.5M	$959.8M	$887.4M
YoY Change	7.32%	8.16%	17.88%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$30.44M	$24.86M	$20.20M
YoY Change	30.62%	23.07%	3.59%
Accrued Expenses	$2.800M	$2.700M	$1.500M
YoY Change	3.7%	80.0%	200.0%
Deferred Revenue
YoY Change
Short-Term Debt	$2.000M	$36.50M	$58.50M
YoY Change	-90.0%	-37.61%	20.62%
Long-Term Debt Due	$7.255M	$7.239M	$7.200M
YoY Change	1.07%	0.54%	-1.37%
Total Short-Term Liabilities	$56.85M	$85.35M	$103.5M
YoY Change	-12.52%	-17.53%	9.64%
LONG-TERM LIABILITIES
Long-Term Debt	$273.2M	$234.5M	$228.3M
YoY Change	18.4%	2.71%	61.8%
Other Long-Term Liabilities	$1.135M	$2.432M	$226.8M
YoY Change	-55.42%	-98.93%	1.3%
Total Long-Term Liabilities	$274.4M	$236.9M	$455.1M
YoY Change	17.6%	-47.94%	24.68%
TOTAL LIABILITIES
Total Short-Term Liabilities	$56.85M	$85.35M	$103.5M
Total Long-Term Liabilities	$274.4M	$236.9M	$455.1M
Total Liabilities	$331.2M	$322.3M	$609.5M
YoY Change	11.04%	-47.12%	20.65%
SHAREHOLDERS EQUITY
Retained Earnings	$128.8M	$125.2M
YoY Change	18.49%
Common Stock	$217.5M	$216.9M
YoY Change	1.08%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$348.3M	$344.2M	$277.9M
YoY Change
Total Liabilities & Shareholders Equity	$976.5M	$959.8M	$887.4M
YoY Change	7.32%	8.16%	17.88%

Cashflow Statement

Concept	2020 Q4	2020 Q3	2019 Q3
OPERATING ACTIVITIES
Net Income	$8.307M	$12.74M	$11.12M
YoY Change	2.92%	14.55%	-9.53%
Depreciation, Depletion And Amortization	$5.240M	$4.721M	$4.246M
YoY Change	19.91%	11.19%	7.49%
Cash From Operating Activities	$16.07M	$16.47M	$11.73M
YoY Change	26.54%	40.41%	-14.0%
INVESTING ACTIVITIES
Capital Expenditures	-$34.83M	$25.37M	$25.52M
YoY Change	24.79%	-0.61%	-220.73%
Acquisitions
YoY Change
Other Investing Activities
YoY Change
Cash From Investing Activities	-$34.83M	-$25.37M	-$25.52M
YoY Change	24.79%	-0.59%	20.72%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	990.0K	-5.050M	66.71M
YoY Change	-78.57%	-107.57%	826.53%
NET CHANGE
Cash From Operating Activities	16.07M	16.47M	11.73M
Cash From Investing Activities	-34.83M	-25.37M	-25.52M
Cash From Financing Activities	990.0K	-5.050M	66.71M
Net Change In Cash	-17.77M	-13.95M	52.92M
YoY Change	67.8%	-126.36%	-17740.0%
FREE CASH FLOW
Cash From Operating Activities	$16.07M	$16.47M	$11.73M
Capital Expenditures	-$34.83M	$25.37M	$25.52M
Free Cash Flow	$50.90M	-$8.897M	-$13.79M
YoY Change	25.34%	-35.49%	-139.65%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Central Index Key EntityCentralIndexKey	0000066004
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Entity Small Business EntitySmallBusiness	false
CY2020Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	us-gaap	Interest Expense InterestExpense	5521000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	24866000	USD
CY2020Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	17469410	shares
	dei	Entity Address State Or Province EntityAddressStateOrProvince	NJ
CY2020Q3	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	39920000	USD
CY2020Q3	msex	Operations And Maintenance OperationsAndMaintenance	17949000	USD
	dei	Entity Shell Company EntityShellCompany	false
CY2019Q3	msex	Operations And Maintenance OperationsAndMaintenance	17669000	USD
	msex	Operations And Maintenance OperationsAndMaintenance	52761000	USD
	msex	Operations And Maintenance OperationsAndMaintenance	50569000	USD
CY2020Q3	us-gaap	Depreciation Depreciation	4721000	USD
CY2019Q3	us-gaap	Depreciation Depreciation	4246000	USD
CY2020Q3	us-gaap	Taxes Other TaxesOther	4073000	USD
	dei	Trading Symbol TradingSymbol	MSEX
	dei	Security Exchange Name SecurityExchangeName	NASDAQ
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Address City Or Town EntityAddressCityOrTown	Iselin
CY2019Q3	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	37769000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1164000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-142000	USD
CY2019Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	867000	USD
	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	106965000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	4035000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	1888000	USD
CY2019Q3	us-gaap	Interest Expense InterestExpense	1996000	USD
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	08830
	dei	City Area Code CityAreaCode	732
	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	101859000	USD
	us-gaap	Depreciation Depreciation	13798000	USD
	dei	Local Phone Number LocalPhoneNumber	634-1500
	dei	Security12b Title Security12bTitle	Common Stock
	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	2030000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	27602000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-265000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	10854000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2516000	USD
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	16757000	shares
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.55
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-952000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	11119000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	25716000	USD
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.67
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.72
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.56
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.66
	us-gaap	Net Income Loss NetIncomeLoss	30118000	USD
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	16610000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	17570000	shares
	us-gaap	Net Income Loss NetIncomeLoss	25818000	USD
CY2019Q4	us-gaap	Public Utilities Property Plant And Equipment Generation Or Processing PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing	160870000	USD
CY2019Q3	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	30000	USD
CY2019Q4	us-gaap	Public Utilities Property Plant And Equipment Transmission And Distribution PublicUtilitiesPropertyPlantAndEquipmentTransmissionAndDistribution	556517000	USD
	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	90000	USD
	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	102000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	11089000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	30028000	USD
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.71
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17455000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	16673000	shares
CY2019Q4	us-gaap	Public Utilities Property Plant And Equipment Other Property Plant And Equipment PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment	83043000	USD
CY2019Q4	us-gaap	Public Utilities Property Plant And Equipment Construction Work In Progress PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress	75520000	USD
CY2019Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	875950000	USD
CY2019Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	170220000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2230000	USD
	us-gaap	Interest Expense InterestExpense	4984000	USD
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	16520000	shares
	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	700000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	6752000	USD
CY2019Q4	msex	Total Common Equity TotalCommonEquity	323792000	USD
	us-gaap	Interest Paid Net InterestPaidNet	5929000	USD
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	17434000	shares
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	215125000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	108667000	USD
CY2019Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	120000	shares
CY2019Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	20000	shares
CY2019Q4	us-gaap	Preferred Stock Value PreferredStockValue	2084000	USD
CY2019Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	705730000	USD
CY2020Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	15567000	USD
CY2020Q3	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	8823000	USD
CY2020Q3	us-gaap	Interest Expense InterestExpense	1906000	USD
CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	5346000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	12668000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-69000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	12737000	USD
CY2020Q3	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	30000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	12707000	USD
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.73
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.72
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17466000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	17581000	shares
CY2020Q3	us-gaap	Public Utilities Property Plant And Equipment Generation Or Processing PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing	165010000	USD
CY2020Q3	us-gaap	Public Utilities Property Plant And Equipment Transmission And Distribution PublicUtilitiesPropertyPlantAndEquipmentTransmissionAndDistribution	625746000	USD
CY2020Q3	us-gaap	Public Utilities Property Plant And Equipment Other Property Plant And Equipment PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment	83606000	USD
CY2020Q3	us-gaap	Public Utilities Property Plant And Equipment Construction Work In Progress PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress	73340000	USD
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CY2019Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	7183000	USD
CY2020Q3	us-gaap	Public Utilities Inventory PublicUtilitiesInventory	4762000	USD
CY2019Q4	us-gaap	Public Utilities Inventory PublicUtilitiesInventory	5445000	USD
CY2020Q3	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	3369000	USD
CY2019Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	2367000	USD
CY2020Q3	us-gaap	Assets Current AssetsCurrent	37867000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	29133000	USD
CY2020Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	5390000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	5944000	USD
CY2020Q3	msex	Preliminary Survey And Investigation Charges PreliminarySurveyAndInvestigationCharges	3307000	USD
CY2019Q4	msex	Preliminary Survey And Investigation Charges PreliminarySurveyAndInvestigationCharges	2054000	USD
CY2020Q3	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	112176000	USD
CY2019Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	110479000	USD
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CY2020Q3	msex	Non Utility Assets Net NonUtilityAssetsNet	10845000	USD
CY2019Q4	msex	Non Utility Assets Net NonUtilityAssetsNet	10370000	USD
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CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	1899000	USD
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CY2020Q3	us-gaap	Preferred Stock Value PreferredStockValue	2084000	USD
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CY2019Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	7635000	USD
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CY2019Q4	us-gaap	Interest Payable Current InterestPayableCurrent	2031000	USD
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CY2019Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	1211000	USD
CY2020Q3	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	2865000	USD
CY2019Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	3620000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	64981000	USD
CY2020Q3	msex	Construction Advances ConstructionAdvances	25100000	USD
CY2019Q4	msex	Construction Advances ConstructionAdvances	23905000	USD
CY2020Q3	msex	Accumulated Deferred Income Taxes AccumulatedDeferredIncomeTaxes	58970000	USD
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CY2020Q3	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	62979000	USD
CY2019Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	69152000	USD
CY2020Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	2432000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	2546000	USD
CY2020Q3	us-gaap	Liabilities Other Than Longterm Debt Noncurrent LiabilitiesOtherThanLongtermDebtNoncurrent	188005000	USD
CY2019Q4	us-gaap	Liabilities Other Than Longterm Debt Noncurrent LiabilitiesOtherThanLongtermDebtNoncurrent	190414000	USD
CY2020Q3	us-gaap	Contributions In Aid Of Construction ContributionsInAidOfConstruction	107796000	USD
CY2019Q4	us-gaap	Contributions In Aid Of Construction ContributionsInAidOfConstruction	97830000	USD
CY2020Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	959834000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	909878000	USD
	us-gaap	Net Income Loss NetIncomeLoss	30118000	USD
	us-gaap	Net Income Loss NetIncomeLoss	25818000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	15595000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	12858000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-10991000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-8379000	USD
	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	1789000	USD
CY2019Q3	us-gaap	Taxes Other TaxesOther	3871000	USD
CY2020Q3	us-gaap	Operating Expenses OperatingExpenses	26743000	USD
CY2020Q3	us-gaap	Common Stock Value CommonStockValue	216866000	USD
CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q3	us-gaap	Liabilities Current LiabilitiesCurrent	85354000	USD
CY2020Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	5214000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	5732000	USD
	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	1330000	USD
	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	166000	USD
	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	187000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	820000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	1645000	USD
	msex	Deobligated Principal Payments DeobligatedPrincipalPayments	130000	USD
CY2019Q3	us-gaap	Stock Granted During Period Value Sharebased Compensation Forfeited StockGrantedDuringPeriodValueSharebasedCompensationForfeited	466000	USD
CY2019Q3	msex	Preferred Stock Convertible Conversion Price PreferredStockConvertibleConversionPrice	8.00
CY2019Q3	us-gaap	Stock Issued During Period Value Conversion Of Convertible Securities StockIssuedDuringPeriodValueConversionOfConvertibleSecurities	350000	USD
CY2019Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.2400
CY2019Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	3987000	USD
CY2019Q3	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	30000	USD
CY2019Q3	us-gaap	Stockholders Equity Other StockholdersEquityOther	15000	USD
CY2019Q3	msex	Total Common Equity TotalCommonEquity	275795000	USD
CY2018Q4	msex	Total Common Equity TotalCommonEquity	248787000	USD
	us-gaap	Net Income Loss NetIncomeLoss	25818000	USD
	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	12449000	USD
	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	679000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	196000	USD
	us-gaap	Stock Granted During Period Value Sharebased Compensation Forfeited StockGrantedDuringPeriodValueSharebasedCompensationForfeited	466000	USD
	msex	Preferred Stock Convertible Conversion Price PreferredStockConvertibleConversionPrice	8.00
	us-gaap	Stock Issued During Period Value Conversion Of Convertible Securities StockIssuedDuringPeriodValueConversionOfConvertibleSecurities	350000	USD
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.7200
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	11893000	USD
	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	102000	USD
	us-gaap	Stockholders Equity Other StockholdersEquityOther	23000	USD
CY2019Q3	msex	Total Common Equity TotalCommonEquity	275795000	USD
CY2020Q2	msex	Total Common Equity TotalCommonEquity	333373000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	12737000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	313000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	188000	USD
CY2020Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.2563
CY2020Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	4475000	USD
CY2020Q3	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	30000	USD
CY2020Q3	msex	Total Common Equity TotalCommonEquity	342106000	USD
CY2019Q4	msex	Total Common Equity TotalCommonEquity	323792000	USD
	us-gaap	Net Income Loss NetIncomeLoss	30118000	USD
	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	921000	USD
	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	575000	USD
	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	245000	USD
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.7688
	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	100000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	37290000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	409000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	3659000	USD
	msex	Change In Unbilled Revenues ChangeInUnbilledRevenues	1640000	USD
	msex	Change In Unbilled Revenues ChangeInUnbilledRevenues	2124000	USD
	us-gaap	Increase Decrease In Raw Materials Packaging Materials And Supplies Inventories IncreaseDecreaseInRawMaterialsPackagingMaterialsAndSuppliesInventories	-683000	USD
	us-gaap	Increase Decrease In Raw Materials Packaging Materials And Supplies Inventories IncreaseDecreaseInRawMaterialsPackagingMaterialsAndSuppliesInventories	-252000	USD
	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	1002000	USD
	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	933000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	1554000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	853000	USD
	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	-2098000	USD
	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	12000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-3520000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-972000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	23348000	USD
	us-gaap	Allowance For Funds Used During Construction Investing Activities AllowanceForFundsUsedDuringConstructionInvestingActivities	1082000	USD
	us-gaap	Allowance For Funds Used During Construction Investing Activities AllowanceForFundsUsedDuringConstructionInvestingActivities	700000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	70785000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	61220000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-70785000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-61220000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	6391000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	6315000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	10319000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	82446000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	16500000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	10000000	USD
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	41000	USD
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	754000	USD
	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	37000	USD
	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	22000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	921000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	13418000	USD
	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	90000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	7420000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	15183000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-18312000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	46499000	USD
	us-gaap	Contribution Of Property ContributionOfProperty	3747000	USD
	msex	Deobligated Principal Payments DeobligatedPrincipalPayments		USD
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	40000000	shares
CY2020Q3	us-gaap	Long Term Debt LongTermDebt	238326000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	234397000	USD
CY2020Q3	us-gaap	Debt Instrument Unamortized Premium DebtInstrumentUnamortizedPremium	7766000	USD
CY2019Q4	us-gaap	Debt Instrument Unamortized Premium DebtInstrumentUnamortizedPremium	8064000	USD
CY2020Q3	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	4364000	USD
CY2019Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	4506000	USD
CY2020Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	7239000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	7178000	USD
CY2020Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	234489000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	230777000	USD
CY2019Q2	msex	Total Common Equity TotalCommonEquity	263284000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	11119000	USD
CY2019Q3	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	5368000	USD
CY2019Q3	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	172000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	13418000	USD
	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	90000	USD
	us-gaap	Stockholders Equity Other StockholdersEquityOther	37000	USD
CY2020Q3	msex	Total Common Equity TotalCommonEquity	342106000	USD
	msex	Contract Operations Period ContractOperationsPeriod	P10Y
	msex	Contract Operations Amount ContractOperationsAmount	8300000	USD
	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	14223	shares
	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	221558	shares
CY2019Q1	msex	Percentage Of Offering Shares On Discount To Participants PercentageOfOfferingSharesOnDiscountToParticipants	0.05	pure
CY2019Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	200000	shares
CY2020Q3	us-gaap	Other Long Term Debt OtherLongTermDebt	90900000	USD
CY2019Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	83000000.0	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	12737000	USD
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17466000	shares
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	11119000	USD
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	16610000	shares
CY2020Q3	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	30000	USD
CY2019Q3	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	30000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	12707000	USD
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17466000	shares
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	11089000	USD
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	16610000	shares
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.73
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.67
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	12707000	USD
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17466000	shares
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	11089000	USD
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	16610000	shares
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	12724000	USD
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	17581000	shares
	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	90000	USD
	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	102000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	30028000	USD
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17455000	shares
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	25716000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	11106000	USD
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	16757000	shares
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.72
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.66
	us-gaap	Net Income Loss NetIncomeLoss	30118000	USD
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17455000	shares
	us-gaap	Net Income Loss NetIncomeLoss	25818000	USD
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	16520000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	16520000	shares
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.72
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.56
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	30028000	USD
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17455000	shares
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	25716000	USD
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	16520000	shares
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	30078000	USD
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	17570000	shares
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	25778000	USD
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	16673000	shares
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.71
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.55
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	pure
CY2020Q3	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	39920000	USD
CY2019Q3	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	37769000	USD
	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	106965000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	13177000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	11983000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	29088000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	27962000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	12737000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	11119000	USD
	us-gaap	Net Income Loss NetIncomeLoss	30118000	USD
	us-gaap	Net Income Loss NetIncomeLoss	25818000	USD
CY2020Q3	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	25367000	USD
CY2019Q3	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	25522000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	70785000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	61220000	USD
CY2020Q3	us-gaap	Assets Assets	959834000	USD
CY2019Q4	us-gaap	Assets Assets	909878000	USD
CY2020Q3	us-gaap	Line Of Credit Facility Current Borrowing Capacity LineOfCreditFacilityCurrentBorrowingCapacity	36500000	USD
CY2020Q3	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	103500000	USD
CY2020Q3	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	140000000.0	USD
CY2020Q3	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.0118	pure
CY2019Q3	msex	Inter Segment Elimination Operating Revenues InterSegmentEliminationOperatingRevenues	-251000	USD
	msex	Inter Segment Elimination Operating Revenues InterSegmentEliminationOperatingRevenues	-647000	USD
	msex	Inter Segment Elimination Operating Revenues InterSegmentEliminationOperatingRevenues	-515000	USD
CY2020Q3	us-gaap	Line Of Credit Facility Maximum Amount Outstanding During Period LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod	35576000	USD
CY2019Q3	us-gaap	Line Of Credit Facility Maximum Amount Outstanding During Period LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod	58259000	USD
	us-gaap	Line Of Credit Facility Maximum Amount Outstanding During Period LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod	31372000	USD
	us-gaap	Line Of Credit Facility Maximum Amount Outstanding During Period LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod	56881000	USD
CY2020Q3	us-gaap	Line Of Credit Facility Interest Rate During Period LineOfCreditFacilityInterestRateDuringPeriod	0.0124	pure
CY2019Q3	us-gaap	Line Of Credit Facility Interest Rate During Period LineOfCreditFacilityInterestRateDuringPeriod	0.0326	pure
	us-gaap	Line Of Credit Facility Interest Rate During Period LineOfCreditFacilityInterestRateDuringPeriod	0.0163	pure
	us-gaap	Line Of Credit Facility Interest Rate During Period LineOfCreditFacilityInterestRateDuringPeriod	0.0345	pure
CY2020Q3	msex	Cost Of Treated Water CostOfTreatedWater	933000	USD
CY2019Q3	msex	Cost Of Treated Water CostOfTreatedWater	818000	USD
	msex	Cost Of Treated Water CostOfTreatedWater	2657000	USD
	msex	Cost Of Treated Water CostOfTreatedWater	2415000	USD
CY2020Q3	msex	Cost Of Untreated Water CostOfUntreatedWater	878000	USD
CY2019Q3	msex	Cost Of Untreated Water CostOfUntreatedWater	878000	USD
	msex	Cost Of Untreated Water CostOfUntreatedWater	2530000	USD
	msex	Cost Of Untreated Water CostOfUntreatedWater	2521000	USD
CY2020Q3	us-gaap	Cost Of Purchased Water CostOfPurchasedWater	1811000	USD
CY2019Q3	us-gaap	Cost Of Purchased Water CostOfPurchasedWater	1696000	USD
	us-gaap	Cost Of Purchased Water CostOfPurchasedWater	5187000	USD
	us-gaap	Cost Of Purchased Water CostOfPurchasedWater	4936000	USD
CY2020Q3	us-gaap	Guaranty Liabilities GuarantyLiabilities	1300000	USD
CY2019Q4	us-gaap	Guaranty Liabilities GuarantyLiabilities	1400000	USD
CY2020Q3	msex	Estimated Incremental Borrowing Rate EstimatedIncrementalBorrowingRate	0.0403	pure
CY2020Q3	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	200000	USD
CY2019Q3	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	200000	USD
	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	600000	USD
	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	500000	USD
CY2020Q3	msex	Right Of Use Asset At Lease Inception RightOfUseAssetAtLeaseInception	7300000	USD
CY2019Q4	msex	Right Of Use Asset At Lease Inception RightOfUseAssetAtLeaseInception	7300000	USD
CY2020Q3	msex	Right Of Use Assets Accumulated Amortization RightOfUseAssetsAccumulatedAmortization	1900000	USD
CY2019Q4	msex	Right Of Use Assets Accumulated Amortization RightOfUseAssetsAccumulatedAmortization	1400000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	101756000	USD
CY2020Q3	us-gaap	Regulated Operating Revenue Other RegulatedOperatingRevenueOther	255000	USD
CY2020Q3	msex	Right Of Use Assets Current RightOfUseAssetsCurrent	5400000	USD
CY2019Q4	msex	Right Of Use Assets Current RightOfUseAssetsCurrent	5900000	USD
CY2020Q3	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	200000	USD
CY2020Q3	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	800000	USD
CY2020Q3	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	800000	USD
CY2020Q3	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	800000	USD
CY2020Q3	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	800000	USD
CY2020Q3	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	4400000	USD
CY2020Q3	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	7800000	USD
CY2020Q3	msex	Imputed Interest ImputedInterest	-1800000	USD
CY2020Q3	us-gaap	Present Value Of Future Minimum Lease Payments Sale Leaseback Transactions PresentValueOfFutureMinimumLeasePaymentsSaleLeasebackTransactions	6000000.0	USD
CY2020Q3	msex	Operating Lease Liability And Other Liabilities Current OperatingLeaseLiabilityAndOtherLiabilitiesCurrent	-800000	USD
	msex	Budgeted Construction Cost BudgetedConstructionCost	113000000	USD
	us-gaap	Long Term Purchase Commitment Amount LongTermPurchaseCommitmentAmount	41000000	USD
	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	400000	USD
CY2020Q3	msex	Residential Operating Revenues ResidentialOperatingRevenues	22340000	USD
CY2019Q3	msex	Residential Operating Revenues ResidentialOperatingRevenues	20693000	USD
	msex	Residential Operating Revenues ResidentialOperatingRevenues	58475000	USD
	msex	Residential Operating Revenues ResidentialOperatingRevenues	54453000	USD
CY2020Q3	msex	Commercial Operating Revenues CommercialOperatingRevenues	4660000	USD
CY2019Q3	msex	Commercial Operating Revenues CommercialOperatingRevenues	4487000	USD
	msex	Commercial Operating Revenues CommercialOperatingRevenues	11678000	USD
	msex	Commercial Operating Revenues CommercialOperatingRevenues	11539000	USD
CY2020Q3	msex	Industrial Operating Revenues IndustrialOperatingRevenues	2629000	USD
CY2019Q3	msex	Industrial Operating Revenues IndustrialOperatingRevenues	2723000	USD
	msex	Industrial Operating Revenues IndustrialOperatingRevenues	6885000	USD
	msex	Industrial Operating Revenues IndustrialOperatingRevenues	7242000	USD
CY2020Q3	msex	Residential Commercial Industrial And Fire Protection Revenue ResidentialCommercialIndustrialAndFireProtectionRevenue	3129000	USD
CY2019Q3	msex	Residential Commercial Industrial And Fire Protection Revenue ResidentialCommercialIndustrialAndFireProtectionRevenue	3100000	USD
	msex	Residential Commercial Industrial And Fire Protection Revenue ResidentialCommercialIndustrialAndFireProtectionRevenue	9235000	USD
	msex	Residential Commercial Industrial And Fire Protection Revenue ResidentialCommercialIndustrialAndFireProtectionRevenue	9211000	USD
CY2020Q3	msex	Wholesale Municipal Revenue WholesaleMunicipalRevenue	4028000	USD
CY2019Q3	msex	Wholesale Municipal Revenue WholesaleMunicipalRevenue	3813000	USD
	msex	Wholesale Municipal Revenue WholesaleMunicipalRevenue	11553000	USD
	msex	Wholesale Municipal Revenue WholesaleMunicipalRevenue	10582000	USD
CY2020Q3	msex	Nonregualted Contract Operations Revenue NonregualtedContractOperationsRevenue	3100000	USD
CY2019Q3	msex	Nonregualted Contract Operations Revenue NonregualtedContractOperationsRevenue	2919000	USD
	msex	Nonregualted Contract Operations Revenue NonregualtedContractOperationsRevenue	9034000	USD
	msex	Nonregualted Contract Operations Revenue NonregualtedContractOperationsRevenue	8729000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	39886000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	37735000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	106860000	USD
CY2019Q3	us-gaap	Regulated Operating Revenue Other RegulatedOperatingRevenueOther	184000	USD
	us-gaap	Regulated Operating Revenue Other RegulatedOperatingRevenueOther	441000	USD
	us-gaap	Regulated Operating Revenue Other RegulatedOperatingRevenueOther	315000	USD
CY2020Q3	msex	Other Nonregulated Revenues OtherNonregulatedRevenues	104000	USD
CY2019Q3	msex	Other Nonregulated Revenues OtherNonregulatedRevenues	101000	USD
	msex	Other Nonregulated Revenues OtherNonregulatedRevenues	311000	USD
	msex	Other Nonregulated Revenues OtherNonregulatedRevenues	303000	USD
CY2020Q3	msex	Inter Segment Elimination Operating Revenues InterSegmentEliminationOperatingRevenues	-325000	USD
CY2020Q3	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	39920000	USD
CY2019Q3	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	37769000	USD
	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	106965000	USD
	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	101859000	USD

Files In Submission

Name	View Source	Status
0001174947-20-001063-index-headers.html	Edgar Link	pending
0001174947-20-001063-index.html	Edgar Link	pending
0001174947-20-001063.txt	Edgar Link	pending
0001174947-20-001063-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
msex-20200930.xsd	Edgar Link	pending
msex-20200930_cal.xml	Edgar Link	unprocessable
msex-20200930_def.xml	Edgar Link	unprocessable
msex-20200930_lab.xml	Edgar Link	unprocessable
msex-20200930_pre.xml	Edgar Link	unprocessable
msex10q0920.htm	Edgar Link	pending
msex10q0920_htm.xml	Edgar Link	completed
msex10qex10-33.htm	Edgar Link	pending
msex10qex10-34.htm	Edgar Link	pending
msex10qex31-1.htm	Edgar Link	pending
msex10qex31-2.htm	Edgar Link	pending
msex10qex32-1.htm	Edgar Link	pending
msex10qex32-2.htm	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
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R7.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$MSEX
MIDDLESEX WATER CO Stock $msex

2020 Q4 Form 10-Q Financial Statement

#000117494720001063 Filed on October 30, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MSEX MIDDLESEX WATER CO Stock $msex

2020 Q4 Form 10-Q Financial Statement

#000117494720001063 Filed on October 30, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MSEX
MIDDLESEX WATER CO Stock $msex