$RGCO
RGC RESOURCES INC Stock $rgco

$rgco Overview Financials Valuation SEC Filings Company Website

2016 Form 10-K Financial Statement

#000106953316000055 Filed on December 08, 2016

Income Statement

Concept	2016	2015 Q3	2015 Q2
Revenue	$59.06M	$9.733M	$10.77M
YoY Change	-13.38%	-5.32%	-10.4%
Cost Of Revenue	$27.50M	$4.320M	$4.810M
YoY Change	-27.63%	-14.12%	-23.65%
Gross Profit	$31.56M	$5.409M	$5.962M
YoY Change	4.5%	2.99%	4.2%
Gross Profit Margin	53.44%	55.57%	55.33%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$5.710M	$1.290M	$1.310M
YoY Change	9.38%	17.27%	4.8%
% of Gross Profit	18.09%	23.85%	21.97%
Operating Expenses	$20.40M	$4.760M	$5.010M
YoY Change	0.99%	-2.86%	4.81%
Operating Profit	$11.21M	$656.2K	$956.2K
YoY Change	12.05%	88.82%	1.65%
Interest Expense	$1.636M	-$370.0K	$358.9K
YoY Change	8.19%	-17.78%	-21.44%
% of Operating Profit	14.59%	-56.39%	37.53%
Other Income/Expense, Net	-$255.6K	-$190.0K	-$21.14K
YoY Change	11.71%	72.73%	-4.08%
Pretax Income	$9.473M	$90.00K	$576.2K
YoY Change	14.62%	-140.91%	24.75%
Income Tax	$3.666M	$50.00K	$221.3K
% Of Pretax Income	38.7%	55.56%	38.4%
Net Earnings	$5.807M	$35.76K	$354.9K
YoY Change	13.98%	-124.77%	25.33%
Net Earnings / Revenue	9.83%	0.37%	3.29%
Basic Earnings Per Share	$0.81	$0.01	$0.08
Diluted Earnings Per Share	$0.81	$0.01	$0.07
COMMON SHARES
Basic Shares Outstanding	7.150M shares	4.731M shares	4.729M shares
Diluted Shares Outstanding	7.160M shares		4.733M shares

Balance Sheet

Concept	2016	2015 Q3	2015 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$600.0K	$1.000M	$1.300M
YoY Change	-40.0%	25.0%	-35.0%
Cash & Equivalents	$600.0K	$985.2K	$1.266M
Short-Term Investments
Other Short-Term Assets	$3.100M	$1.182M	$1.182M
YoY Change	6.9%	7.03%	12.27%
Inventory	$8.300M	$9.100M	$6.300M
Prepaid Expenses
Receivables	$3.500M	$3.197M	$3.556M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$15.50M	$16.15M	$15.51M
YoY Change	-3.73%	-23.13%	-7.88%
LONG-TERM ASSETS
Property, Plant & Equipment	$132.1M	$118.6M	$115.3M
YoY Change	11.38%	9.11%	9.39%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$3.500M	$0.00
YoY Change
Other Assets	$14.40M	$144.6K	$347.8K
YoY Change	29.73%	44.49%	120.93%
Total Long-Term Assets	$150.1M	$11.07M	$9.687M
YoY Change	15.73%	18.08%	111.47%
TOTAL ASSETS
Total Short-Term Assets	$15.50M	$16.15M	$15.51M
Total Long-Term Assets	$150.1M	$11.07M	$9.687M
Total Assets	$165.6M	$145.8M	$140.5M
YoY Change	13.58%	4.83%	10.74%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$5.300M	$5.142M	$4.880M
YoY Change	3.92%	-4.2%	-2.84%
Accrued Expenses	$3.200M	$2.766M	$2.050M
YoY Change	14.29%	25.68%	12.89%
Deferred Revenue
YoY Change
Short-Term Debt	$14.60M	$9.300M	$1.700M
YoY Change	56.99%	3.33%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$28.50M	$23.20M	$16.74M
YoY Change	22.84%	14.0%	30.83%
LONG-TERM LIABILITIES
Long-Term Debt	$33.60M	$30.32M	$30.50M
YoY Change	10.89%	-0.6%	8.93%
Other Long-Term Liabilities	$28.80M	$24.90M	$21.90M
YoY Change	15.66%	14.22%	15.87%
Total Long-Term Liabilities	$62.40M	$39.49M	$38.57M
YoY Change	13.04%	8.34%	14.66%
TOTAL LIABILITIES
Total Short-Term Liabilities	$28.50M	$23.20M	$16.74M
Total Long-Term Liabilities	$62.40M	$39.49M	$38.57M
Total Liabilities	$109.9M	$62.69M	$55.31M
YoY Change	18.17%	10.37%	19.11%
SHAREHOLDERS EQUITY
Retained Earnings		$22.77M	$23.65M
YoY Change		6.81%	5.87%
Common Stock		$32.36M	$32.13M
YoY Change		1.62%	1.01%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$55.70M	$52.84M	$54.66M
YoY Change
Total Liabilities & Shareholders Equity	$165.6M	$145.8M	$140.5M
YoY Change	13.58%	4.83%	10.74%

Cashflow Statement

Concept	2016	2015 Q3	2015 Q2
OPERATING ACTIVITIES
Net Income	$5.807M	$35.76K	$354.9K
YoY Change	13.98%	-124.77%	25.33%
Depreciation, Depletion And Amortization	$5.710M	$1.290M	$1.310M
YoY Change	9.38%	17.27%	4.8%
Cash From Operating Activities	$14.92M	-$3.430M	$5.290M
YoY Change	-10.97%	-37.29%	101.91%
INVESTING ACTIVITIES
Capital Expenditures	$17.95M	-$3.790M	-$3.190M
YoY Change	30.23%	-3.81%	-10.89%
Acquisitions
YoY Change
Other Investing Activities	-$3.050M	$0.00	$30.00K
YoY Change	-10266.67%	-100.0%
Cash From Investing Activities	-$21.00M	-$3.790M	-$3.160M
YoY Change	52.7%	-3.56%	-11.48%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$1.031M
YoY Change	138.48%
Debt Paid & Issued, Net	$0.00
YoY Change
Cash From Financing Activities	$5.733M	6.930M	-1.740M
YoY Change	-299.4%	-16.2%	107.14%
NET CHANGE
Cash From Operating Activities	$14.92M	-3.430M	5.290M
Cash From Investing Activities	-$21.00M	-3.790M	-3.160M
Cash From Financing Activities	$5.733M	6.930M	-1.740M
Net Change In Cash	-$342.0K	-290.0K	390.0K
YoY Change	-352.43%	-74.34%	-121.79%
FREE CASH FLOW
Cash From Operating Activities	$14.92M	-$3.430M	$5.290M
Capital Expenditures	$17.95M	-$3.790M	-$3.190M
Free Cash Flow	-$3.024M	$360.0K	$8.480M
YoY Change	-201.46%	-123.53%	36.77%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2016	dei	Amendment Flag AmendmentFlag	false
CY2016	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--09-30
CY2016	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2016	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2016
CY2016	dei	Document Period End Date DocumentPeriodEndDate	2016-09-30
CY2016	dei	Document Type DocumentType	10-K
CY2016	dei	Entity Central Index Key EntityCentralIndexKey	0001069533
CY2016Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	4798466	shares
CY2016	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2016	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2016Q1	dei	Entity Public Float EntityPublicFloat	95954187	USD
CY2016	dei	Entity Registrant Name EntityRegistrantName	RGC RESOURCES INC
CY2016	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2016	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2014	rgco	Accounts Payable Customer Credits And Accrued Expenses Net AccountsPayableCustomerCreditsAndAccruedExpensesNet	-505006	USD
CY2015	rgco	Accounts Payable Customer Credits And Accrued Expenses Net AccountsPayableCustomerCreditsAndAccruedExpensesNet	-873354	USD
CY2016	rgco	Accounts Payable Customer Credits And Accrued Expenses Net AccountsPayableCustomerCreditsAndAccruedExpensesNet	60303	USD
CY2015Q3	rgco	Accrual Of Estimated Revenues For Natural Gas Delivered To Customers But Not Billed During Period AccrualOfEstimatedRevenuesForNaturalGasDeliveredToCustomersButNotBilledDuringPeriod	1001418	USD
CY2016Q3	rgco	Accrual Of Estimated Revenues For Natural Gas Delivered To Customers But Not Billed During Period AccrualOfEstimatedRevenuesForNaturalGasDeliveredToCustomersButNotBilledDuringPeriod	1004061	USD
CY2015Q3	rgco	Capital Contributions Payable CapitalContributionsPayable	0	USD
CY2016Q3	rgco	Capital Contributions Payable CapitalContributionsPayable	287794	USD
CY2014	rgco	Cost Of Plant Retirement CostOfPlantRetirement	452834	USD
CY2015	rgco	Cost Of Plant Retirement CostOfPlantRetirement	406731	USD
CY2016	rgco	Cost Of Plant Retirement CostOfPlantRetirement	449201	USD
CY2014	rgco	Cost Of Sales CostOfSales	45679045	USD
CY2015	rgco	Cost Of Sales CostOfSales	37983174	USD
CY2016	rgco	Cost Of Sales CostOfSales	27498377	USD
CY2016	rgco	Deferred Charges Amortization Period DeferredChargesAmortizationPeriod	P12M
CY2015Q3	rgco	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions And Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensionsAndPostretirementBenefits	2502774	USD
CY2016Q3	rgco	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions And Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensionsAndPostretirementBenefits	2532672	USD
CY2015Q3	rgco	Deferred Tax Assets Tax Deferred Expense Costs Of Gas Held In Storage DeferredTaxAssetsTaxDeferredExpenseCostsOfGasHeldInStorage	930524	USD
CY2016Q3	rgco	Deferred Tax Assets Tax Deferred Expense Costs Of Gas Held In Storage DeferredTaxAssetsTaxDeferredExpenseCostsOfGasHeldInStorage	1077849	USD
CY2015Q3	rgco	Deferred Tax Liabilites Accrued Gas Costs DeferredTaxLiabilitesAccruedGasCosts	157385	USD
CY2016Q3	rgco	Deferred Tax Liabilites Accrued Gas Costs DeferredTaxLiabilitesAccruedGasCosts	11217	USD
CY2016	rgco	Defined Benefit Plan Amortization Of Net Gains Losses Regulatory Deferral DefinedBenefitPlanAmortizationOfNetGainsLossesRegulatoryDeferral	836000	USD
CY2016Q3	rgco	Energy Purchase Obligation Due In Next Twelve Months EnergyPurchaseObligationDueInNextTwelveMonths	2071061	MMBTU
CY2016Q3	rgco	Energy Purchase Obligation Due In Second Year EnergyPurchaseObligationDueInSecondYear	295866	MMBTU
CY2016Q3	rgco	Energy Purchase Obligation Due Total EnergyPurchaseObligationDueTotal	2366927	MMBTU
CY2016	rgco	Federal Bonus Depreciation Rate FederalBonusDepreciationRate	0.50
CY2016	rgco	Federal Bonus Depreciation Rate Calendar Year2017 FederalBonusDepreciationRateCalendarYear2017	0.50
CY2016	rgco	Federal Bonus Depreciation Rate Calendar Year2018 FederalBonusDepreciationRateCalendarYear2018	0.40
CY2016	rgco	Federal Bonus Depreciation Rate Calendar Year2019 FederalBonusDepreciationRateCalendarYear2019	0.30
CY2016	rgco	Federal Bonus Depreciation Rate Calendar Year2020 And After FederalBonusDepreciationRateCalendarYear2020AndAfter	0.00
CY2014	rgco	Increase Decrease In Accounts Receivable Net Of Customer Deposits IncreaseDecreaseInAccountsReceivableNetOfCustomerDeposits	-12424	USD
CY2015	rgco	Increase Decrease In Accounts Receivable Net Of Customer Deposits IncreaseDecreaseInAccountsReceivableNetOfCustomerDeposits	-638917	USD
CY2016	rgco	Increase Decrease In Accounts Receivable Net Of Customer Deposits IncreaseDecreaseInAccountsReceivableNetOfCustomerDeposits	258960	USD
CY2016	rgco	Loc Debt Covenant Minimum Required Interest Coverage Ratio Upper Range LOCDebtCovenantMinimumRequiredInterestCoverageRatioUpperRange	1.5
CY2015Q3	rgco	Natural Gas Purchases Fair Value Disclosure NaturalGasPurchasesFairValueDisclosure	712710	USD
CY2016Q3	rgco	Natural Gas Purchases Fair Value Disclosure NaturalGasPurchasesFairValueDisclosure	1052930	USD
CY2016Q3	rgco	Number Of Customers NumberOfCustomers	59600	customer
CY2016	rgco	Number Of Gas Transfer Stations Replacements With Save Approval NumberOfGasTransferStationsReplacementsWithSAVEApproval	3
CY2016	rgco	Number Of Pipelines NumberOfPipelines	2	pipeline
CY2014	rgco	Other Comprehensive Income Amortizationof Defined Benefit Plan Recognizedin Net Periodic Pension Cost Tax OtherComprehensiveIncomeAmortizationofDefinedBenefitPlanRecognizedinNetPeriodicPensionCostTax	-15901	USD
CY2015	rgco	Other Comprehensive Income Amortizationof Defined Benefit Plan Recognizedin Net Periodic Pension Cost Tax OtherComprehensiveIncomeAmortizationofDefinedBenefitPlanRecognizedinNetPeriodicPensionCostTax	-22884	USD
CY2016	rgco	Other Comprehensive Income Amortizationof Defined Benefit Plan Recognizedin Net Periodic Pension Cost Tax OtherComprehensiveIncomeAmortizationofDefinedBenefitPlanRecognizedinNetPeriodicPensionCostTax	-84006	USD
CY2014	rgco	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Recognized In Net Periodic Benefit Cost Before Tax OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansRecognizedInNetPeriodicBenefitCostBeforeTax	-41846	USD
CY2015	rgco	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Recognized In Net Periodic Benefit Cost Before Tax OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansRecognizedInNetPeriodicBenefitCostBeforeTax	-60221	USD
CY2016	rgco	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Recognized In Net Periodic Benefit Cost Before Tax OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansRecognizedInNetPeriodicBenefitCostBeforeTax	-221070	USD
CY2014	rgco	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Recognized In Net Periodic Pension Cost Net Of Tax OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansRecognizedInNetPeriodicPensionCostNetOfTax	-25945	USD
CY2015	rgco	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Recognized In Net Periodic Pension Cost Net Of Tax OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansRecognizedInNetPeriodicPensionCostNetOfTax	-37337	USD
CY2016	rgco	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Recognized In Net Periodic Pension Cost Net Of Tax OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansRecognizedInNetPeriodicPensionCostNetOfTax	-137064	USD
CY2014	rgco	Other Comprehensive Income Loss Defined Benefit Plan Balance Sheet Net Gains Losses Net Of Tax OtherComprehensiveIncomeLossDefinedBenefitPlanBalanceSheetNetGainsLossesNetOfTax	246583	USD
CY2015	rgco	Other Comprehensive Income Loss Defined Benefit Plan Balance Sheet Net Gains Losses Net Of Tax OtherComprehensiveIncomeLossDefinedBenefitPlanBalanceSheetNetGainsLossesNetOfTax	1184556	USD
CY2016	rgco	Other Comprehensive Income Loss Defined Benefit Plan Balance Sheet Net Gains Losses Net Of Tax OtherComprehensiveIncomeLossDefinedBenefitPlanBalanceSheetNetGainsLossesNetOfTax	347750	USD
CY2014	rgco	Other Comprehensive Income Loss Defined Benefit Plan Balance Sheet Net Gains Losses Tax OtherComprehensiveIncomeLossDefinedBenefitPlanBalanceSheetNetGainsLossesTax	151131	USD
CY2015	rgco	Other Comprehensive Income Loss Defined Benefit Plan Balance Sheet Net Gains Losses Tax OtherComprehensiveIncomeLossDefinedBenefitPlanBalanceSheetNetGainsLossesTax	726017	USD
CY2016	rgco	Other Comprehensive Income Loss Defined Benefit Plan Balance Sheet Net Gains Losses Tax OtherComprehensiveIncomeLossDefinedBenefitPlanBalanceSheetNetGainsLossesTax	213137	USD
CY2014	rgco	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives To Regulatory Asset Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesToRegulatoryAssetNetOfTax	-694372	USD
CY2014	rgco	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives To Regulatory Asset Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesToRegulatoryAssetTax	-424861	USD
CY2014	rgco	Other Comprehensive Income Loss Reclassification Adjustment From Aoci To Regulatory Asset On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIToRegulatoryAssetOnDerivativesBeforeTax	-1119233	USD
CY2014	rgco	Other Comprehensive Income Lossdefinedbenefitplanbalancesheetnetgainslossesbeforetax OtherComprehensiveIncomeLossdefinedbenefitplanbalancesheetnetgainslossesbeforetax	397714	USD
CY2015	rgco	Other Comprehensive Income Lossdefinedbenefitplanbalancesheetnetgainslossesbeforetax OtherComprehensiveIncomeLossdefinedbenefitplanbalancesheetnetgainslossesbeforetax	1910573	USD
CY2016	rgco	Other Comprehensive Income Lossdefinedbenefitplanbalancesheetnetgainslossesbeforetax OtherComprehensiveIncomeLossdefinedbenefitplanbalancesheetnetgainslossesbeforetax	560887	USD
CY2015Q3	rgco	Public Utilities Property Plant And Equipment In Service Net PublicUtilitiesPropertyPlantAndEquipmentInServiceNet	114725953	USD
CY2016Q3	rgco	Public Utilities Property Plant And Equipment In Service Net PublicUtilitiesPropertyPlantAndEquipmentInServiceNet	129420999	USD
CY2015Q3	rgco	Public Utilities Property Plant And Equipment Liquefied Natural Gas PublicUtilitiesPropertyPlantAndEquipmentLiquefiedNaturalGas	12501179	USD
CY2016Q3	rgco	Public Utilities Property Plant And Equipment Liquefied Natural Gas PublicUtilitiesPropertyPlantAndEquipmentLiquefiedNaturalGas	12594294	USD
CY2015	rgco	Reclassification Between Currentand Deferred Income Taxes ReclassificationBetweenCurrentandDeferredIncomeTaxes	1442211	USD
CY2016	rgco	Reclassification Between Currentand Deferred Income Taxes ReclassificationBetweenCurrentandDeferredIncomeTaxes	1283925	USD
CY2015Q3	rgco	Regulatory Cost Of Retirement Obligations RegulatoryCostOfRetirementObligations	8885486	USD
CY2016Q3	rgco	Regulatory Cost Of Retirement Obligations RegulatoryCostOfRetirementObligations	9348443	USD
CY2016	rgco	Regulatory Utility Assets Provision Period RegulatoryUtilityAssetsProvisionPeriod	P5Y
CY2016	rgco	Save Plan Extension Additional Number Of Years Approved SAVEPlanExtensionAdditionalNumberOfYearsApproved	P3Y
CY2016	rgco	Twenty Year Treasury Rate Change TwentyYearTreasuryRateChange	-0.0052
CY2016	rgco	Unamortized Losson Early Retirementof Debt Amortization Period UnamortizedLossonEarlyRetirementofDebtAmortizationPeriod	P20Y
CY2015Q3	rgco	Unamortizedlossonearlyretirementofdebtdeferredasregulatoryasset Unamortizedlossonearlyretirementofdebtdeferredasregulatoryasset	2169556	USD
CY2016Q3	rgco	Unamortizedlossonearlyretirementofdebtdeferredasregulatoryasset Unamortizedlossonearlyretirementofdebtdeferredasregulatoryasset	2055369	USD
CY2014	rgco	Unregulated Cost Of Sales UnregulatedCostOfSales	587771	USD
CY2015	rgco	Unregulated Cost Of Sales UnregulatedCostOfSales	545859	USD
CY2016	rgco	Unregulated Cost Of Sales UnregulatedCostOfSales	489047	USD
CY2015Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	5141677	USD
CY2016Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	5345575	USD
CY2015Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	3196573	USD
CY2016Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	3478983	USD
CY2015Q3	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	2766097	USD
CY2016Q3	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	3194255	USD
CY2013Q3	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-1232546	USD
CY2014Q3	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	0	USD
CY2015Q3	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	0	USD
CY2016Q3	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	0	USD
CY2013Q3	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	918688	USD
CY2014Q3	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	1139326	USD
CY2015Q3	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	2286545	USD
CY2016Q3	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	2497231	USD
CY2013Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-2151234	USD
CY2014Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1139326	USD
CY2015Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-2286545	USD
CY2016Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-2497231	USD
CY2015Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	8647669	USD
CY2016Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	9509548	USD
CY2014	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	2131298	USD
CY2015	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	11666412	USD
CY2016	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	9114774	USD
CY2013Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	68539	USD
CY2014Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	70747	USD
CY2015Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	52721	USD
CY2016Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	76934	USD
CY2014	us-gaap	Allowance For Doubtful Accounts Receivable Recoveries AllowanceForDoubtfulAccountsReceivableRecoveries	136369	USD
CY2015	us-gaap	Asset Management Costs AssetManagementCosts	33405000	USD
CY2016	us-gaap	Asset Management Costs AssetManagementCosts	24852000	USD
CY2015	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	281762	USD
CY2016	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	310568	USD
CY2015	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	62890	USD
CY2016	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	85263	USD
CY2015	us-gaap	Allowance For Doubtful Accounts Receivable Recoveries AllowanceForDoubtfulAccountsReceivableRecoveries	139282	USD
CY2016	us-gaap	Allowance For Doubtful Accounts Receivable Recoveries AllowanceForDoubtfulAccountsReceivableRecoveries	137055	USD
CY2014	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	283042	USD
CY2015	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	245216	USD
CY2016	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	126916	USD
CY2014	us-gaap	Asset Management Costs AssetManagementCosts	44884000	USD
CY2015	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	162072	USD
CY2016	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	176090	USD
CY2015	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	311273	USD
CY2016	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	166947	USD
CY2014Q3	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	4802015	USD
CY2015Q3	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	5295868	USD
CY2016Q3	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	5682556	USD
CY2015Q3	us-gaap	Assets Assets	145847194	USD
CY2016Q3	us-gaap	Assets Assets	165552849	USD
CY2015Q3	us-gaap	Assets Current AssetsCurrent	16149822	USD
CY2016Q3	us-gaap	Assets Current AssetsCurrent	15482324	USD
CY2015Q3	us-gaap	Assets Noncurrent AssetsNoncurrent	11067820	USD
CY2016Q3	us-gaap	Assets Noncurrent AssetsNoncurrent	17942387	USD
CY2013Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2846224	USD
CY2014Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	849757	USD
CY2015Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	985234	USD
CY2016Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	643252	USD
CY2014	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-1996467	USD
CY2015	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	135477	USD
CY2016	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-341982	USD
CY2015Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2016Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2014	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.74
CY2015	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.77
CY2016	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.81
CY2015Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	5
CY2016Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	5
CY2015Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	10000000	shares
CY2016Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	10000000	shares
CY2015Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	4741498	shares
CY2016Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	4788289	shares
CY2015Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	4741498	shares
CY2016Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	4788289	shares
CY2014	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	1789294	USD
CY2015	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	379180	USD
CY2015Q3	us-gaap	Common Stock Value CommonStockValue	23707490	USD
CY2016Q3	us-gaap	Common Stock Value CommonStockValue	23941445	USD
CY2014	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	5720348	USD
CY2015	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	3947196	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	5596180	USD
CY2014	us-gaap	Cost Of Natural Gas Purchases CostOfNaturalGasPurchases	45091274	USD
CY2015	us-gaap	Cost Of Natural Gas Purchases CostOfNaturalGasPurchases	37437315	USD
CY2016	us-gaap	Cost Of Natural Gas Purchases CostOfNaturalGasPurchases	27009330	USD
CY2016	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-1216745	USD
CY2014	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	2079752	USD
CY2015	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	753721	USD
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-800770	USD
CY2014	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	290458	USD
CY2015	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	374541	USD
CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	415975	USD
CY2015Q3	us-gaap	Customer Advances Current CustomerAdvancesCurrent	1560351	USD
CY2016Q3	us-gaap	Customer Advances Current CustomerAdvancesCurrent	1605608	USD
CY2015Q3	us-gaap	Customer Deposits Current CustomerDepositsCurrent	1579441	USD
CY2016Q3	us-gaap	Customer Deposits Current CustomerDepositsCurrent	1627105	USD
CY2016	us-gaap	Debt Instrument Term DebtInstrumentTerm	P20Y
CY2014	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	687417	USD
CY2015	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	2289729	USD
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	4302906	USD
CY2014	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	862881	USD
CY2015	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	2416841	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	4466954	USD
CY2015Q3	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	19962247	USD
CY2016Q3	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	24316158	USD
CY2014	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	859788	USD
CY2015	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	2416841	USD
CY2016	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	4466954	USD
CY2014	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	175464	USD
CY2015	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	127112	USD
CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	164048	USD
CY2015Q3	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	5342216	USD
CY2016Q3	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	5358304	USD
CY2015Q3	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	265951	USD
CY2016Q3	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	340121	USD
CY2015Q3	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	721782	USD
CY2016Q3	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	345318	USD
CY2015Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Compensated Absences DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsCompensatedAbsences	249837	USD
CY2016Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Compensated Absences DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsCompensatedAbsences	262273	USD
CY2015Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Other DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther	651336	USD
CY2016Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Other DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther	770868	USD
CY2016	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1	2491000	USD
CY2016	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1	109000	USD
CY2016	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation	3083000	USD
CY2016	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents	137000	USD
CY2015Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	20012	USD
CY2016Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	29203	USD
CY2015Q3	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	0	USD
CY2016Q3	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	40776	USD
CY2015Q3	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	14620031	USD
CY2016Q3	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	18957854	USD
CY2015Q3	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	19804862	USD
CY2016Q3	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	24264165	USD
CY2016	us-gaap	Defined Benefit Plan Amount To Be Amortized From Accumulated Other Comprehensive Income Loss Next Fiscal Year DefinedBenefitPlanAmountToBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossNextFiscalYear	256000	USD
CY2014	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	330241	USD
CY2015	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	338896	USD
CY2016	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	353793	USD
CY2014	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	4838062	USD
CY2015	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	5219893	USD
CY2016	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	5709525	USD
CY2014	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	3490624	USD
CY2015	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	3643093	USD
CY2016	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	3865933	USD
CY2015Q3	us-gaap	Dividends Payable Current DividendsPayableCurrent	912995	USD
CY2016Q3	us-gaap	Dividends Payable Current DividendsPayableCurrent	970244	USD
CY2014	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.00
CY2014Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.41
CY2015Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.59
CY2015Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.08
CY2015Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.01
CY2015	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.08
CY2015Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.40
CY2016Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.65
CY2016Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.13
CY2016Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.03
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.22
CY2014	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.00
CY2014Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.41
CY2015Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.59
CY2015Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.07
CY2015Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.01
CY2015	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.08
CY2015Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.40
CY2016Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.65
CY2016Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.13
CY2016Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.03
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.22
CY2014	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.34
CY2015	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.34
CY2016	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.34
CY2014	us-gaap	Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions	0	USD
CY2015	us-gaap	Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions	49366	USD
CY2016	us-gaap	Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions	41762	USD
CY2015Q3	us-gaap	Energy Related Inventory Natural Gas In Storage EnergyRelatedInventoryNaturalGasInStorage	8160498	USD
CY2016Q3	us-gaap	Energy Related Inventory Natural Gas In Storage EnergyRelatedInventoryNaturalGasInStorage	7436785	USD
CY2014	us-gaap	Gross Profit GrossProfit	29337089	USD
CY2014Q4	us-gaap	Gross Profit GrossProfit	8622143	USD
CY2015Q1	us-gaap	Gross Profit GrossProfit	10213770	USD
CY2015Q2	us-gaap	Gross Profit GrossProfit	5961828	USD
CY2015Q3	us-gaap	Gross Profit GrossProfit	5408692	USD
CY2015	us-gaap	Gross Profit GrossProfit	30206433	USD
CY2015Q4	us-gaap	Gross Profit GrossProfit	8738116	USD
CY2016Q1	us-gaap	Gross Profit GrossProfit	10649269	USD
CY2016Q2	us-gaap	Gross Profit GrossProfit	6312340	USD
CY2016Q3	us-gaap	Gross Profit GrossProfit	5865189	USD
CY2016	us-gaap	Gross Profit GrossProfit	31564914	USD
CY2014	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	7647980	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	8264977	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	9473050	USD
CY2014	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2015	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2016	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	152864	USD
CY2014	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2939540	USD
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3170562	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3666184	USD
CY2014	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	2600313	USD
CY2015	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	2810092	USD
CY2016	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	3220837	USD
CY2014	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	34811	USD
CY2015	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	29379	USD
CY2016	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	62532	USD
CY2014	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	307509	USD
CY2015	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	331091	USD
CY2016	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	382815	USD
CY2014	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	3093	USD
CY2015	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	0	USD
CY2016	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	0	USD
CY2014	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	2387000	USD
CY2015	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1266573	USD
CY2016	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-907000	USD
CY2014	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	1219641	USD
CY2015	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-3168056	USD
CY2016	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-867682	USD
CY2014	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	306744	USD
CY2016Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	3396200	USD
CY2016Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	165552849	USD
CY2015Q3	us-gaap	Liabilities Current LiabilitiesCurrent	23202984	USD
CY2015	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	768922	USD
CY2016	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	398864	USD
CY2014	us-gaap	Increase Decrease In Over Under Energy Recovery IncreaseDecreaseInOverUnderEnergyRecovery	1208134	USD
CY2015	us-gaap	Increase Decrease In Over Under Energy Recovery IncreaseDecreaseInOverUnderEnergyRecovery	-2082257	USD
CY2016	us-gaap	Increase Decrease In Over Under Energy Recovery IncreaseDecreaseInOverUnderEnergyRecovery	991739	USD
CY2014	us-gaap	Interest Expense InterestExpense	1827001	USD
CY2015	us-gaap	Interest Expense InterestExpense	1512419	USD
CY2016	us-gaap	Interest Expense InterestExpense	1636321	USD
CY2014	us-gaap	Interest Paid InterestPaid	1966263	USD
CY2015	us-gaap	Interest Paid InterestPaid	1002462	USD
CY2016	us-gaap	Interest Paid InterestPaid	1480665	USD
CY2015Q3	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	0	USD
CY2016Q3	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	3496404	USD
CY2015Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	145847194	USD
CY2016Q3	us-gaap	Liabilities Current LiabilitiesCurrent	28497053	USD
CY2015Q3	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	30500000	USD
CY2016Q3	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	33896200	USD
CY2015Q3	us-gaap	Liabilities Fair Value Disclosure Recurring LiabilitiesFairValueDisclosureRecurring	712710	USD
CY2016Q3	us-gaap	Liabilities Fair Value Disclosure Recurring LiabilitiesFairValueDisclosureRecurring	1052930	USD
CY2015Q3	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	39486646	USD
CY2016Q3	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	47752673	USD
CY2014	us-gaap	Line Of Credit Facility Average Outstanding Amount LineOfCreditFacilityAverageOutstandingAmount	1340833	USD
CY2015	us-gaap	Line Of Credit Facility Average Outstanding Amount LineOfCreditFacilityAverageOutstandingAmount	6377040	USD
CY2016	us-gaap	Line Of Credit Facility Average Outstanding Amount LineOfCreditFacilityAverageOutstandingAmount	9620914	USD
CY2014Q3	us-gaap	Line Of Credit Facility Current Borrowing Capacity LineOfCreditFacilityCurrentBorrowingCapacity	15000000	USD
CY2015Q3	us-gaap	Line Of Credit Facility Current Borrowing Capacity LineOfCreditFacilityCurrentBorrowingCapacity	24000000	USD
CY2016Q3	us-gaap	Line Of Credit Facility Current Borrowing Capacity LineOfCreditFacilityCurrentBorrowingCapacity	24000000	USD
CY2014Q3	us-gaap	Line Of Credit Facility Interest Rate At Period End LineOfCreditFacilityInterestRateAtPeriodEnd	0.0116
CY2015Q3	us-gaap	Line Of Credit Facility Interest Rate At Period End LineOfCreditFacilityInterestRateAtPeriodEnd	0.0120
CY2016Q3	us-gaap	Line Of Credit Facility Interest Rate At Period End LineOfCreditFacilityInterestRateAtPeriodEnd	0.0153
CY2014	us-gaap	Line Of Credit Facility Interest Rate During Period LineOfCreditFacilityInterestRateDuringPeriod	0.0116
CY2015	us-gaap	Line Of Credit Facility Interest Rate During Period LineOfCreditFacilityInterestRateDuringPeriod	0.0117
CY2016	us-gaap	Line Of Credit Facility Interest Rate During Period LineOfCreditFacilityInterestRateDuringPeriod	0.0140
CY2014	us-gaap	Line Of Credit Facility Maximum Monthend Outstanding Amount LineOfCreditFacilityMaximumMonthendOutstandingAmount	9045050	USD
CY2015	us-gaap	Line Of Credit Facility Maximum Monthend Outstanding Amount LineOfCreditFacilityMaximumMonthendOutstandingAmount	17366052	USD
CY2016	us-gaap	Line Of Credit Facility Maximum Monthend Outstanding Amount LineOfCreditFacilityMaximumMonthendOutstandingAmount	15246089	USD
CY2014	us-gaap	Line Of Credit Facility Unused Capacity Commitment Fee Percentage LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage	0.0015
CY2015	us-gaap	Line Of Credit Facility Unused Capacity Commitment Fee Percentage LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage	0.0015
CY2016	us-gaap	Line Of Credit Facility Unused Capacity Commitment Fee Percentage LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage	0.0015
CY2015Q3	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	30500000	USD
CY2016Q3	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	33896200	USD
CY2016Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	30500000	USD
CY2016Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	0	USD
CY2016Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	0	USD
CY2014	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent	135230	USD
CY2016Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	0	USD
CY2016Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	0	USD
CY2015Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	30316573	USD
CY2016Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	33636051	USD
CY2014	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	5862365	USD
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-2875076	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	5732879	USD
CY2014	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-14698570	USD
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-13750274	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-20996501	USD
CY2014	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	6839738	USD
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	16760827	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	14921640	USD
CY2014	us-gaap	Net Income Loss NetIncomeLoss	4708440	USD
CY2014Q4	us-gaap	Net Income Loss NetIncomeLoss	1924376	USD
CY2015Q1	us-gaap	Net Income Loss NetIncomeLoss	2779344	USD
CY2015Q2	us-gaap	Net Income Loss NetIncomeLoss	354940	USD
CY2015Q3	us-gaap	Net Income Loss NetIncomeLoss	35755	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	5094415	USD
CY2015Q4	us-gaap	Net Income Loss NetIncomeLoss	1922790	USD
CY2016Q1	us-gaap	Net Income Loss NetIncomeLoss	3111447	USD
CY2016Q2	us-gaap	Net Income Loss NetIncomeLoss	627068	USD
CY2016Q3	us-gaap	Net Income Loss NetIncomeLoss	145561	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	5806866	USD
CY2016	us-gaap	Noncash Or Part Noncash Acquisition Investments Acquired1 NoncashOrPartNoncashAcquisitionInvestmentsAcquired1	287794	USD
CY2016	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2014	us-gaap	Operating Income Loss OperatingIncomeLoss	9681868	USD
CY2014Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	3514352	USD
CY2015Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	4879469	USD
CY2015Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	956219	USD
CY2015Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	656152	USD
CY2015	us-gaap	Operating Income Loss OperatingIncomeLoss	10006192	USD
CY2015Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	3498052	USD
CY2016Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	5444314	USD
CY2016Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	1453350	USD
CY2016Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	816376	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	11212092	USD
CY2015Q3	us-gaap	Other Assets Current OtherAssetsCurrent	1182343	USD
CY2016Q3	us-gaap	Other Assets Current OtherAssetsCurrent	1548329	USD
CY2015Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	144577	USD
CY2016Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	113532	USD
CY2014	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPortionAttributableToParent	355868	USD
CY2014	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	220638	USD
CY2015	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	1147219	USD
CY2016	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	210686	USD
CY2014	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	1630827	USD
CY2015	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-1850352	USD
CY2016	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-339817	USD
CY2014	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Before Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax	1986695	USD
CY2014	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	1232546	USD
CY2015	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	0	USD
CY2016	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	0	USD
CY2014	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	754149	USD
CY2014	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1011908	USD
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1147219	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-210686	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	-926262	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-574653	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	-351609	USD
CY2014	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	618919	USD
CY2015	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-703133	USD
CY2016	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-129131	USD
CY2014	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-58800	USD
CY2014	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-36479	USD
CY2014	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-22321	USD
CY2015Q3	us-gaap	Other Inventory OtherInventory	968108	USD
CY2016Q3	us-gaap	Other Inventory OtherInventory	824139	USD
CY2014	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-38073	USD
CY2015	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-105815	USD
CY2016	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-197298	USD
CY2014	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-206887	USD
CY2015	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-228796	USD
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-255585	USD
CY2014Q3	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	9045050	USD
CY2015Q3	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	9340997	USD
CY2016Q3	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	14556785	USD
CY2014	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	2237961	USD
CY2015	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
CY2016	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
CY2014	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	193081	USD
CY2015	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2016	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	101619	USD
CY2014	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	3465034	USD
CY2015	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	3603424	USD
CY2016	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	3808683	USD
CY2014	us-gaap	Payments To Acquire Additional Interest In Subsidiaries PaymentsToAcquireAdditionalInterestInSubsidiaries	0	USD
CY2015	us-gaap	Payments To Acquire Additional Interest In Subsidiaries PaymentsToAcquireAdditionalInterestInSubsidiaries	0	USD
CY2016	us-gaap	Payments To Acquire Additional Interest In Subsidiaries PaymentsToAcquireAdditionalInterestInSubsidiaries	3055746	USD
CY2014	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	14715428	USD
CY2015	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	13780356	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	17945719	USD
CY2015Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	10685261	USD
CY2016Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	13763820	USD
CY2015Q3	us-gaap	Preferred Stock No Par Value PreferredStockNoParValue	0
CY2016Q3	us-gaap	Preferred Stock No Par Value PreferredStockNoParValue	0
CY2015Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2016Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2015Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2016Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2015Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2016Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2015Q3	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2016Q3	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2015Q3	us-gaap	Prepaid Taxes PrepaidTaxes	1657066	USD
CY2016Q3	us-gaap	Prepaid Taxes PrepaidTaxes	1550836	USD
CY2014	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	213391	USD
CY2015	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	432401	USD
CY2016	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1031194	USD
CY2014	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	30500000	USD
CY2015	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	0	USD
CY2016	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	3396200	USD
CY2014	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	25363774	USD
CY2015	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	34698924	USD
CY2016	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	38310326	USD
CY2014	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	16858	USD
CY2015	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	30082	USD
CY2016	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	4964	USD
CY2014	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	148881	USD
CY2015	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	87908	USD
CY2016	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	14074	USD
CY2015Q3	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	53307079	USD
CY2016Q3	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	56156287	USD
CY2015Q3	us-gaap	Public Utilities Property Plant And Equipment Construction Work In Progress PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress	3903599	USD
CY2016Q3	us-gaap	Public Utilities Property Plant And Equipment Construction Work In Progress PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress	2707139	USD
CY2014	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.0325
CY2015	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.0325
CY2016	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.0325
CY2015Q3	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	118629552	USD
CY2016Q3	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	132128138	USD
CY2015Q3	us-gaap	Public Utilities Property Plant And Equipment Other Property Plant And Equipment PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment	12359225	USD
CY2016Q3	us-gaap	Public Utilities Property Plant And Equipment Other Property Plant And Equipment PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment	12628692	USD
CY2015Q3	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	168033032	USD
CY2016Q3	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	185577286	USD
CY2015Q3	us-gaap	Public Utilities Property Plant And Equipment Transmission And Distribution PublicUtilitiesPropertyPlantAndEquipmentTransmissionAndDistribution	143172628	USD
CY2016Q3	us-gaap	Public Utilities Property Plant And Equipment Transmission And Distribution PublicUtilitiesPropertyPlantAndEquipmentTransmissionAndDistribution	160354300	USD
CY2016Q3	us-gaap	Purchase Obligation PurchaseObligation	36433102	USD
CY2016Q3	us-gaap	Purchase Obligation Due After Fifth Year PurchaseObligationDueAfterFifthYear	2682848	USD
CY2016Q3	us-gaap	Purchase Obligation Due In Fifth Year PurchaseObligationDueInFifthYear	2476475	USD
CY2016Q3	us-gaap	Purchase Obligation Due In Fourth Year PurchaseObligationDueInFourthYear	4800201	USD
CY2016Q3	us-gaap	Purchase Obligation Due In Next Twelve Months PurchaseObligationDueInNextTwelveMonths	10474339	USD
CY2016Q3	us-gaap	Purchase Obligation Due In Second Year PurchaseObligationDueInSecondYear	8784004	USD
CY2016Q3	us-gaap	Purchase Obligation Due In Third Year PurchaseObligationDueInThirdYear	7215235	USD
CY2015Q3	us-gaap	Refundable Gas Costs RefundableGasCosts	1901426	USD
CY2016Q3	us-gaap	Refundable Gas Costs RefundableGasCosts	909687	USD
CY2014	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	75016134	USD
CY2014Q4	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	21250065	USD
CY2015Q1	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	26431729	USD
CY2015Q2	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	10774409	USD
CY2015Q3	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	9733404	USD
CY2015	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	68189607	USD
CY2015Q4	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	16010056	USD
CY2016Q1	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	21777773	USD
CY2016Q2	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	11295197	USD
CY2016Q3	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	9980265	USD
CY2016	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	59063291	USD
CY2014	us-gaap	Regulated Operating Revenue Gas RegulatedOperatingRevenueGas	73865487	USD
CY2015	us-gaap	Regulated Operating Revenue Gas RegulatedOperatingRevenueGas	67094290	USD
CY2016	us-gaap	Regulated Operating Revenue Gas RegulatedOperatingRevenueGas	58079990	USD
CY2015Q3	us-gaap	Regulatory Assets RegulatoryAssets	11695250	USD
CY2016Q3	us-gaap	Regulatory Assets RegulatoryAssets	15328763	USD
CY2015Q3	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	10923243	USD
CY2016Q3	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	14332451	USD
CY2015Q3	us-gaap	Regulatory Liabilities RegulatoryLiabilities	16236145	USD
CY2016Q3	us-gaap	Regulatory Liabilities RegulatoryLiabilities	16179380	USD
CY2016Q3	us-gaap	Remaining Amounts Of Regulatory Assets For Which No Return On Investment During Recovery Period Is Provided RemainingAmountsOfRegulatoryAssetsForWhichNoReturnOnInvestmentDuringRecoveryPeriodIsProvided	13261449	USD
CY2014	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	16318724	USD
CY2015	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	34402977	USD
CY2016	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	33094539	USD
CY2014	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	13000000	USD
CY2015	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	USD
CY2016	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	USD
CY2014	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	15000000	USD
CY2015	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	0	USD
CY2016	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	0	USD
CY2015Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	22772377	USD
CY2016Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	24713310	USD
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P6M
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0421
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0411
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0399
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.3501
CY2016	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	21.22
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	16000	shares
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	4.43
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	17000	shares
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	17000	shares
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.3434
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.2878
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0223
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0198
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0210
CY2016Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	41000	shares
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	5624	USD
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	8418	USD
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	0	shares
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	0	shares
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	0	shares
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	0	shares
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	0	shares
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	8000	shares
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	4.92
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	4.04
CY2013Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	5229	USD
CY2014Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	34840	USD
CY2015Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	43086	USD
CY2016Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	200211	USD
CY2013Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	21000	shares
CY2014Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	38000	shares
CY2015Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	52400	shares
CY2016Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	58200	shares
CY2013Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	19.01
CY2014Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	18.98
CY2015Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	19.83
CY2016Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	20.25
CY2016Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber	58200	shares
CY2016Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice	20.25
CY2016Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	200211	USD
CY2014	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	0.00
CY2015	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	18.99
CY2016	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	18.98
CY2014	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	0.00
CY2015	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	0.00
CY2016	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	0.00
CY2014	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	0.00
CY2015	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	0.00
CY2016	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	19.80
CY2014	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	18.95
CY2015	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	21.60
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod	P10Y
CY2014	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y
CY2015	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y
CY2013	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P9Y6M
CY2014	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P8Y9M
CY2015	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P8Y4M
CY2015	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	49366	USD
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P7Y10M
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1	P7Y10M
CY2014	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	11052	shares
CY2015	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	18520	shares
CY2016	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	44591	shares
CY2014	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	0	shares
CY2015	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	2600	shares
CY2015	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	2600	shares
CY2016	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	2200	shares
CY2016	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	2200	shares
CY2014	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	213391	USD
CY2015	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	383035	USD
CY2016	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	989432	USD
CY2016	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	41762	USD
CY2014	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	75310	USD
CY2015	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	83640	USD
CY2016	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	64640	USD
CY2013Q3	us-gaap	Stockholders Equity StockholdersEquity	49502422	USD
CY2014Q3	us-gaap	Stockholders Equity StockholdersEquity	52020847	USD
CY2015Q3	us-gaap	Stockholders Equity StockholdersEquity	52840991	USD
CY2016Q3	us-gaap	Stockholders Equity StockholdersEquity	55667072	USD
CY2015Q3	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	183427	USD
CY2016Q3	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	260149	USD
CY2014	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	1150647	USD
CY2015	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	1095317	USD
CY2016	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	983301	USD
CY2015Q3	us-gaap	Unsecured Long Term Debt UnsecuredLongTermDebt	30500000	USD
CY2016Q3	us-gaap	Unsecured Long Term Debt UnsecuredLongTermDebt	33896200	USD
CY2014	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	19655221	USD
CY2015	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	20200241	USD
CY2016	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	20352822	USD
CY2014	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	4711447	USD
CY2015	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	5106935	USD
CY2016	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	5591610	USD
CY2014	us-gaap	Utilities Operating Expense Maintenance And Operations UtilitiesOperatingExpenseMaintenanceAndOperations	13383388	USD
CY2015	us-gaap	Utilities Operating Expense Maintenance And Operations UtilitiesOperatingExpenseMaintenanceAndOperations	13486885	USD
CY2016	us-gaap	Utilities Operating Expense Maintenance And Operations UtilitiesOperatingExpenseMaintenanceAndOperations	13098086	USD
CY2014	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	1560386	USD
CY2015	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	1606421	USD
CY2016	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	1663126	USD
CY2014	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	804	shares
CY2015	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	3466	shares
CY2016	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	6571	shares
CY2014	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	4716282	shares
CY2015	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	4731676	shares
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	4773175	shares
CY2014	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4715478	shares
CY2015	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4728210	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4766604	shares
CY2016	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:12px;padding-left:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Use of Estimates</font><font style="font-family:inherit;font-size:10pt;">—The preparation of financial statements in conformity with Generally Accepted Accounting Principles in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.</font></div></div>

Files In Submission

Name	View Source	Status
0001069533-16-000055-index-headers.html	Edgar Link	pending
0001069533-16-000055-index.html	Edgar Link	pending
0001069533-16-000055.txt	Edgar Link	pending
0001069533-16-000055-xbrl.zip	Edgar Link	pending
brownedwardsa03.jpg	Edgar Link	pending
brownedwardssignaturea03.jpg	Edgar Link	pending
ex10ll-amendmenttorgcoutsi.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
R1.htm	Edgar Link	pending
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report.css	Edgar Link	pending
rgco-20160930.xml	Edgar Link	completed
rgco-20160930.xsd	Edgar Link	pending
rgco-20160930_cal.xml	Edgar Link	unprocessable
rgco-20160930_def.xml	Edgar Link	unprocessable
rgco-20160930_lab.xml	Edgar Link	unprocessable
rgco-20160930_pre.xml	Edgar Link	unprocessable
rgco-9302016x10kxq4.htm	Edgar Link	pending
rgco-9302_chartx53573.jpg	Edgar Link	pending
rgco-ex21x9302016xq4.htm	Edgar Link	pending
rgco-ex23x9302016xq4.htm	Edgar Link	pending
rgco-ex311x9302016xq4.htm	Edgar Link	pending
rgco-ex312x9302016xq4.htm	Edgar Link	pending
rgco-ex321x9302016xq4.htm	Edgar Link	pending
rgco-ex322x9302016xq4.htm	Edgar Link	pending
Show.js	Edgar Link	pending

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$RGCO
RGC RESOURCES INC Stock $rgco

2016 Form 10-K Financial Statement

#000106953316000055 Filed on December 08, 2016

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$RGCO RGC RESOURCES INC Stock $rgco

2016 Form 10-K Financial Statement

#000106953316000055 Filed on December 08, 2016

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$RGCO
RGC RESOURCES INC Stock $rgco