Connecticut Water Service (CTWS) 10-Q 6 May 15 2015 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2015	Apr. 30, 2015
Entities [Table]
Entity Registrant Name	CONNECTICUT WATER SERVICE INC / CT
Entity Central Index Key	276209
Current Fiscal Year End Date	-19
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	31-Mar-15
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Amendment Flag	FALSE
Entity Common Stock, Shares Outstanding		11,152,145

CONSOLIDATED_BALANCE_SHEETS

CONSOLIDATED BALANCE SHEETS (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
ASSETS
Utility Plant	$688,444	$685,654
Construction Work in Progress	10,740	9,304
Gross Utility Plant	699,184	694,958
Accumulated Provision for Depreciation	-191,282	-188,019
Net Utility Plant	507,902	506,939
Other Property and Investments	8,639	8,271
Cash and Cash Equivalents	2,344	2,475
Accounts Receivable (Less Allowance, 2015 - $1,172; 2014 - $1,202)	11,424	11,971
Accrued Unbilled Revenues	7,362	8,283
Materials and Supplies	1,496	1,486
Prepayments and Other Current Assets	13,526	11,953
Total Current Assets	36,152	36,168
Restricted Cash	1,864	0
Unamortized Debt Issuance Expense	6,162	6,292
Unrecovered Income Taxes - Regulatory Asset	58,863	57,331
Pension Benefits - Regulatory Asset	13,061	13,713
Post-Retirement Benefits Other Than Pension - Regulatory Asset	2,598	2,626
Goodwill	31,685	31,685
Deferred Charges and Other Costs	6,956	8,164
Total Regulatory and Other Long-Term Assets	121,189	119,811
Total Assets	673,882	671,189
CAPITALIZATION AND LIABILITIES
Common Stock Without Par Value: Authorized - 25,000,000 Shares - Issued and Outstanding: 2015 - 11,151,193; 2014 - 11,124,630	142,163	141,684
Retained Earnings (Accumulated Deficit)	69,595	69,370
Accumulated Other Comprehensive Loss	-1,492	-1,603
Common Stockholders' Equity	210,266	209,451
Preferred Stock	772	772
Long-Term Debt	177,689	176,601
Total Capitalization	388,727	386,824
Debt, Current	2,464	2,457
Interim Bank Loans Payable	5,422	1,991
Accounts Payable and Accrued Expenses	7,222	10,019
Accrued Interest	1,474	693
Customer Refund Liability, Current	6,179	6,079
Other Current Liabilities	2,321	2,383
Total Current Liabilities	25,082	23,622
Advances for Construction	25,854	26,718
Deferred Federal and State Income Taxes	52,003	53,322
Unfunded Future Income Taxes	58,451	56,919
Long-Term Compensation Arrangements	36,451	35,748
Unamortized Investment Tax Credits	1,320	1,339
Refund to Customers - Regulatory Liability	0	1,550
Other Long-Term Liabilities	769	776
Total Long-Term Liabilities	174,848	176,372
Contributions in Aid of Construction	85,225	84,371
Commitments and Contingencies	0	0
Total Capitalization and Liabilities	$673,882	$671,189

CONSOLIDATED_BALANCE_SHEETS_Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, except Share data, unless otherwise specified
Issued	11,151,193	11,124,630
Outstanding	11,151,193	11,124,630
ASSETS
Allowance	$1,172	$1,202
Capitalization, Long-term Debt and Equity [Abstract]
Common Stock, No Par Value	$0	$0
Common Stock, Shares Authorized	25,000,000	25,000,000

CONSOLIDATED_STATEMENTS_OF_INC

CONSOLIDATED STATEMENTS OF INCOME (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Income Statement [Abstract]
Operating Revenues	$20,030	$20,260
Operating Expenses
Operation and Maintenance	11,324	10,667
Depreciation	3,136	2,808
Income Taxes	-941	494
Taxes Other Than Income Taxes	2,346	2,387
Total Operating Expenses	15,865	16,356
Net Operating Revenues	4,165	3,904
Other Utility Income, Net of Taxes	155	185
Total Utility Operating Income	4,320	4,089
Other Income (Deductions), Net of Taxes
Non-Water Sales Earnings	369	433
Allowance for Funds Used During Construction	90	98
Other	-7	18
Total Other Income, Net of Taxes	452	549
Interest and Debt Expense
Interest on Long-Term Debt	1,774	1,751
Interest Income (Expense), Net	-132	-158
Amortization of Debt Expense	27	59
Total Interest and Debt Expense	1,669	1,652
Net Income	3,103	2,986
Preferred Stock Dividend Requirement	9	9
Net Income Applicable to Common Stock	$3,094	$2,977
Weighted Average Common Shares Outstanding:
Basic (in shares)	10,924,330	10,868,784
Diluted (in shares)	11,144,297	11,061,324
Earnings Per Common Share:
Basic (in dollars per share)	$0.28	$0.27
Diluted (in dollars per share)	$0.28	$0.27
Dividends Per Common Share (in dollars per share)	$0.26	$0.25

CONSOLIDATED_STATEMENTS_OF_COM

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Statement of Comprehensive Income [Abstract]
Net Income	$3,103	$2,986
Other Comprehensive Income, net of tax
Reclassification to Pension and Post-Retirement Benefits Other Than Pension, net of tax of $37 and $13 for the three months ended March 31, 2015 and 2014, respectively	97	61
Unrealized gain (loss) on investments, net of tax (expense) benefit of $(9) and $2 for the three months ended March 31, 2015 and 2014, respectively	14	-3
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	111	58
Comprehensive Income	$3,214	$3,044

CONSOLIDATED_STATEMENTS_OF_COM1

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Other Comprehensive Income, net of tax
Reclassification to Pension and Post-Retirement Benefits Plans, net of tax (expense) benefit of	$37	$13
Unrealized Investment loss, net of tax expense of	$14	($2)

CONSOLIDATED_STATEMENTS_OF_RET

CONSOLIDATED STATEMENTS OF RETAINED EARNINGS (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Balance at Beginning of Period	$69,370	$59,277
Net Income	3,103	2,986
Retained Earnings before Dividends	72,473	62,263
Dividends Declared:
Cumulative Preferred, Class A, $0.20 per share for the three months ended March 31, 2015 and 2014 respectively	9	9
Common Stock - $0.2575 per share and $0.2425 per share for the three months ended March 31, 2015 and 2014, respectively	2,869	2,735
Total Dividends Declared	2,878	2,744
Balance at End of Period	69,595	59,519
Series A Voting
Dividends Declared:
Cumulative Preferred, Class A, $0.20 per share for the three months ended March 31, 2015 and 2014 respectively	3	3
Cumulative Preferred Stock
Dividends Declared:
Cumulative Preferred, Class A, $0.20 per share for the three months ended March 31, 2015 and 2014 respectively	$6	$6

CONSOLIDATED_STATEMENTS_OF_RET1

CONSOLIDATED STATEMENTS OF RETAINED EARNINGS (Parenthetical) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Dividends Declared:
Common Stock (in dollars per share)	$0.26	$0.25
Cumulative Preferred Stock
Dividends Declared:
Preferred Stock (in dollars per share)	$0.23	$0.23
Series A Voting
Dividends Declared:
Preferred Stock (in dollars per share)	$0.20	$0.20

CONSOLIDATED_STATEMENTS_OF_CAS

CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Net Additions to Utility Plant Used in Continuing Operations	$6,523	$6,402
Operating Activities:
Net Income	3,103	2,986
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Deferred Revenues	249	-47
Provision for Deferred Income Taxes and Investment Tax Credits, Net	-1,366	226
Allowance for Funds Used During Construction	-90	-98
Depreciation (including $220 and $291 in 2015 and 2014, respectively, charged to other accounts)	3,356	3,099
Change in Assets and Liabilities:
Increase in Accounts Receivable and Accrued Unbilled Revenues	1,468	1,506
Increase in Prepayments and Other Current Assets	-1,557	-1,498
(Increase) Decrease in Other Non-Current Items	632	715
Increase in Accounts Payable, Accrued Expenses and Other Current Liabilities	292	-1,933
Total Adjustments	2,984	1,970
Net Cash and Cash Equivalents Provided by Operating Activities	6,087	4,956
Investing Activities:
Release of restricted cash	0	1,165
Net Cash and Cash Equivalents Used in Investing Activities	-6,523	-5,237
Financing Activities:
Proceeds from Interim Bank Loans	5,422	0
Repayment of Interim Bank Loans	-1,991	0
Proceeds from Issuance of Common Stock	366	419
Costs to Issue Long-Term Debt and Common Stock	-5	0
Repayment of Long-Term Debt Including Current Portion	-661	-554
Advances from Others for Construction	52	64
Cash Dividends Paid	-2,878	-2,744
Net Cash and Cash Equivalents (Used in) Provided by Financing Activities	305	-2,815
Net (Decrease) Increase in Cash and Cash Equivalents	-131	-3,096
Cash and Cash Equivalents at Beginning of Period	2,475	18,371
Cash and Cash Equivalents at End of Year	2,344	15,275
Non-Cash Investing and Financing Activities:
Non-Cash Contributed Utility Plant	8	247
Short-term Investment of Bond Proceeds Held in Restricted Cash	1,864
Cash Paid for:
Interest	931	969
State and Federal Income Taxes	$130	$75

CONSOLIDATED_STATEMENTS_OF_CAS1

CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Depreciation charged to other accounts	$220	$291

Basis_of_Preparation_of_Financ

Basis of Preparation of Financials	3 Months Ended
	Mar. 31, 2015
Notes To Financial Statements [Abstract]
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]
	1	Basis of Preparation of Financials
	The condensed consolidated financial statements included herein have been prepared by Connecticut Water Service, Inc. (the “Company”) and its wholly-owned subsidiaries, pursuant to the rules and regulations of the Securities and Exchange Commission and reflect all adjustments that are of a normal recurring nature which are, in the opinion of management, necessary to a fair statement of the results for interim periods.  Certain information and footnote disclosures have been omitted pursuant to such rules and regulations, although the Company believes that the disclosures are adequate to make the information presented not misleading.  The Company’s primary operating subsidiaries are: The Connecticut Water Company (“Connecticut Water”) and The Maine Water Company (“Maine Water”). The Biddeford & Saco Water Company (“BSWC”) was merged with and into Maine Water, with Maine Water remaining as the surviving entity, effective January 1, 2014. The Condensed Consolidated Balance Sheet at December 31, 2014 has been derived from the audited financial statements at that date but does not include all of the information and footnotes required by accounting principles generally accepted in the United States of America for complete financial statements.  It is suggested that these condensed consolidated financial statements be read in conjunction with the financial statements and the notes thereto included in the Company’s latest Annual Report on Form 10-K for the year ended December 31, 2014 (the “10-K”).
	The results for interim periods are not necessarily indicative of results to be expected for the year since the consolidated earnings are subject to seasonal factors.
	Regulatory Matters
	The rates we charge our water customers in Connecticut and Maine are established under the jurisdiction of and are approved by the Connecticut Public Utilities Regulatory Authority (“PURA”) and the Maine Public Utility Commission (“MPUC”), respectively. It is our policy to seek rate relief as necessary to enable us to achieve an adequate rate of return. Connecticut Water’s allowed return on equity and return on rate base, effective March 31, 2015 were 9.75% and 7.32%, respectively. Maine Water’s average allowed return on equity and return on rate base, effective March 31, 2015 were 9.50% and 7.96%, respectively. The PURA establishes rates in Connecticut on a company-wide basis while the MPUC approves rates on a division-by-division basis.
	Connecticut Rates
	Effective April 1, 2014, in accordance with a settlement agreement with the Office of the Consumer Counsel of the State of Connecticut (the “OCC”) and the Office of the Attorney General for the State of Connecticut, Connecticut Water’s cumulative Water Infrastructure Conservation Adjustment (“WICA”) surcharge of 7.89% was rolled into base rates charged to customers.
	On July 29, 2014, Connecticut Water filed a WICA application with the PURA requesting a 1.59% surcharge to customers’ bills, representing approximately $12.7 million in WICA related projects. On September 26, 2014, the PURA approved the 1.59% surcharge with the new rates becoming effective on October 1, 2014.
	On January 28, 2015, Connecticut Water filed a WICA application with the PURA requesting a 1.35% surcharge to customers' bills, representing approximately $11.2 million in WICA related projects. On February 23, 2015, Connecticut Water filed for a 0.10% reconciliation adjustment for the 2014 shortfall in WICA. On March 25 and 27, 2015, the PURA approved the reconciliation adjustment and the WICA application, respectively. Effective April 1, 2015, the cumulative WICA surcharge is now 3.04%.
	On June 5, 2013, the Connecticut’s General Assembly passed Public Act 13-78, “An Act Concerning Water Infrastructure and Conservation, Municipal Reporting Requirements and Unpaid Utility Accounts at Multi-Family Dwellings” (“PA 13-78”), which authorized a Water Revenue Adjustment (“WRA”) to reconcile actual water demands with the demands projected in the last general rate case and allows companies to adjust rates as necessary to recover the revenues approved by PURA in the last general rate case. The WRA removes the financial disincentive for water utilities to develop and implement effective water conservation programs. The WRA allows water companies to defer on the balance sheet, as a regulatory asset or liability, for later collection from or crediting to customers the amount by which actual revenues deviate from the revenues allowed in the most recent general rate proceedings, including WICA proceedings. Additionally, PA 13-78 raised the cap for WICA charges to 10%, from 7.5%, between general rate cases and expands the eligible projects to include energy conservation projects, improvements required to comply with streamflow regulations, and improvements to acquired systems.
	Connecticut Water’s allowed revenues for the three months ended March 31, 2015, as approved by PURA during our 2010 general rate case and including subsequently approved WICA surcharges, are approximately $16.9 million. Through normal billing for the three months ended March 31, 2015, revenue for Connecticut Water would have been approximately $17.1 million had the WRA not been implemented. As a result of the implementation of the WRA, Connecticut Water recorded $0.2 million in reduction to revenue for the three months ended March 31, 2015.
	Maine Rates
	On March 25, 2014, the MPUC approved a rate increase resulting in an annual increase of $340,000 in revenues for one of Maine Water’s divisions requested in April 2013, which became effective on that date. Additionally, Maine Water filed for a general rate increase for its Biddeford and Saco division, its largest division, on November 5, 2014 requesting $1.7 million in additional revenues, offset by $700,000 in the first year due to the adoption of Internal Revenue Service (“IRS”) Revenue Procedure 2012-19 (“Repair Regulations”). Maine Water entered into a stipulation agreement (“Biddeford Stipulation Agreement”) with Maine’s Office of Public Advocate which allowed for flow-through treatment of the Repair Regulations retroactive to January 1, 2014. As part of the Biddeford Stipulation Agreement, customers in the Biddeford and Saco division would receive the benefit of the Repair Regulations, approximately $880,000, over a three year period. Excluding the impact of the refund to customers, the Biddeford Stipulation Agreement calls for an annual increase in rates of approximately $1.3 million. MPUC issued a final decision related to the Biddeford Stipulation Agreement on March 13, 2015, with the new rates, and the first year of the refund, effective on March 10, 2015.
	Effective June 2013, a Water Infrastructure Charge (“WISC”) became available in Maine that allows for expedited recovery of investment in water system infrastructure replacement, both treatment and distribution. Because the MPUC sets rates for Maine Water on a division-by-division basis, the WISC must be implemented in the same manner. To date, Maine Water has implemented a WISC in all of its ten divisions with expected annual revenue totaling $442,000.
	On October 30, 2014, Maine Water petitioned the MPUC for approval of an accounting order that would allow it to refund to its customers a federal income tax refund stemming from the adoption of Repair Regulations to eight of its ten divisions, and to allow flow-through treatment of the repair deduction as of January 1, 2014. On February 26, 2015, the MPUC approved a stipulation between Maine Water and the Office of the Public Advocate (“Maine Water Stipulation Agreement”) that refunds $2.9 million to the customers of the eight divisions over a two year period starting no later than July 1, 2015, and allowing the requesting accounting treatment. In addition, Maine Water agreed not to file a general rate case during the two year refund period in any of the eight divisions that were allowed the refund. As part of the Biddeford Stipulation Agreement and the Maine Water Stipulation Agreement, Maine Water is required to determine the remaining deferred tax liabilities associated with the fixed assets which the Company will be deducting as part of the adoption of the Repair Regulations. All parties to the Biddeford Stipulation Agreement, the Maine Water Stipulation Agreement, and the MPUC, agree that any benefit resulting from the elimination of deferred tax liabilities previously recorded on qualifying fixed assets subject to the Repair Regulation deduction, be deferred and considered in a separate docket initiated after the Company has analyzed this additional deferred tax liability in more detail. On April 8, 2015, Maine Water filed a petition with the MPUC that asks for a ten year amortization of the deferred taxes in each of its ten divisions, and this petition is still pending before the MPUC. Maine Water believes that this analysis is an integral component to the overall accounting for the adoption of the Repair Regulations and the adoption of the flow-through method of accounting for regulatory accounting related to the adoption of the Repair Regulations. As such, though Maine Water believes the Biddeford Stipulation Agreement, the Maine Water Stipulation Agreement and MPUC orders are probable of being approved, Maine Water believes it is not possible to estimate the accounting impact of the Biddeford Stipulation Agreement and the Maine Water Stipulation Agreement including the separate analysis of the deferred tax liabilities as of March 31, 2015 and as a result has not recorded the impact of flow through accounting related to these deductions.

Pension_and_Other_PostRetireme

Pension and Other Post-Retirement Benefits	3 Months Ended
	Mar. 31, 2015
Notes To Financial Statements [Abstract]
Pension and Other Post-Retirement Benefits
	2	Pension and Other Post-Retirement Benefits
	The following tables set forth the components of pension and other post-retirement benefit costs for the three months ended March 31, 2015 and 2014.
	Pension Benefits
	Components of Net Periodic Cost (in thousands):
		Three Months
	Period ended March 31,	2015			2014
	Service Cost	$	570		$	488
	Interest Cost	771			763
	Expected Return on Plan Assets	(966		)	(889		)
	Amortization of:
	Prior Service Cost	4			18
	Net Recognized Loss	691			273
	Net Periodic Benefit Cost	$	1,070		$	653
	The Company does not plan to make a contribution to its defined benefit pension plan in 2015 for the 2014 plan year, as allowed by the plan’s current funding status.
	Post-Retirement Benefits Other Than Pension (PBOP)
	Components of Net Periodic Cost (in thousands):
		Three Months
	Period ended March 31,	2015			2014
	Service Cost	$	152		$	154
	Interest Cost	147			160
	Expected Return on Plan Assets	(81		)	(77		)
	Other	56			56
	Amortization of:
	Prior Service Credit	(142		)	(201		)
	Recognized Net Loss	110			68
	Net Periodic Benefit Cost	$	242		$	160

Earnings_per_Share

Earnings per Share	3 Months Ended
	Mar. 31, 2015
Notes To Financial Statements [Abstract]
Earnings per Share
	3	Earnings per Share
	Earnings per weighted average common share are calculated by dividing net income applicable to common stock by the weighted average number of shares of common stock outstanding during the respective periods as detailed below (diluted shares include the effect of stock awards):
	Three months ended March 31,	2015		2014
	Common Shares Outstanding End of Period:	11,151,193		11,078,336
	Weighted Average Shares Outstanding (Days Outstanding Basis):
	Basic	10,924,330		10,868,784
	Diluted	11,144,297		11,061,324
	Basic Earnings per Share	$	0.28	$	0.27
	Dilutive Effect of Stock Awards	—		—
	Diluted Earnings per Share	$	0.28	$	0.27
	Total unrecognized compensation expense for all stock awards was approximately $1.7 million as of March 31, 2015 and will be recognized over a weighted average period of 1.4 years.

New_Accounting_Pronouncements

New Accounting Pronouncements	3 Months Ended
	Mar. 31, 2015
Notes To Financial Statements [Abstract]
Recently Adopted and New Accounting Pronouncements
	4	Recently Adopted and New Accounting Pronouncements
	In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-09, “Revenue from Contracts with Customers,” which amends its guidance related to revenue recognition. ASU 2014-09 requires an entity to recognize revenue as performance obligations are met, in order to reflect the transfer of promised goods or services to customers in an amount that reflects the consideration the entity is entitled to receive for those goods or services. The following steps are applied in the updated guidance: (1) identify the contract(s) with a customer; (2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to the performance obligations in the contract; and (5) recognize revenue when, or as, the entity satisfies a performance obligation. ASU 2014-09 is effective for public companies for fiscal years, and interim periods within those years, beginning after December 15, 2016, and can be adopted either retrospectively to each prior reporting period presented or as a cumulative-effect adjustment as of the date of adoption, however early adoption is not permitted. On April 1, 2015, the FASB voted for a one-year deferral of the effective date of ASU 2014-09, making ASU 2014-09 effective for public companies for fiscal years, and interim periods within those years, beginning after December 15, 2017. The Company is currently determining its implementation approach and assessing the impact that this guidance may have on our consolidated financial position.
	In April 2015, the FASB issued ASU 2015-03, “Interest - Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs.” The update requires debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of the related debt liability instead of being presented as an asset. Debt disclosures will include the face amount of the debt liability and the effective interest rate. The update requires retrospective application and represents a change in accounting principle. The update is effective for fiscal years beginning after December 15, 2015. Early adoption is permitted for financial statements that have not been previously issued. The Company is currently assessing the impact of this standard on its consolidated financial statements and footnote disclosures, but does not expect that the adoption of this guidance will materially impact our consolidated financial position.

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income (Loss) (Notes)	3 Months Ended
	Mar. 31, 2015
Accumulated Other Comprehensive Income (Loss) [Abstract]
Comprehensive Income (Loss) Note [Text Block]
	5	Accumulated Other Comprehensive Income
	The changes in Accumulated Other Comprehensive Income (Loss) (“AOCI”) by component, net of tax, for the three months ended March 31, 2015 and 2014 is as follows (in thousands):
	Three months ended March 31, 2015		Unrealized Gains on Investments			Defined Benefit Items			Total
	Beginning Balance (a)		$	298		$	(1,901	)	$	(1,603	)
	Other Comprehensive Income (Loss) Before Reclassification		14			—			14
	Amounts Reclassified from AOCI		—			97			97
	Net current-period Other Comprehensive Income (Loss)		14			97			111
	Ending Balance		$	312		$	(1,804	)	$	(1,492	)
	Three months ended March 31, 2014		Unrealized Gains on Investments			Defined Benefit Items			Total
	Beginning Balance (a)		$	259		$	(374	)	$	(115	)
	Other Comprehensive Income (Loss) Before Reclassification		(14		)	—			(14		)
	Amounts Reclassified from AOCI		11			61			72
	Net current-period Other Comprehensive Income (Loss)		(3		)	61			58
	Ending Balance		$	256		$	(313	)	$	(57	)
	(a) All amounts shown are net of tax. Amounts in parentheses indicate loss.
	The following table sets forth the amounts reclassified from AOCI by component and the affected line item on the Condensed Consolidated Statements of Income for the three months ended March 31, 2015 and 2014 (in thousands):
	Details about Other AOCI Components		Amounts Reclassified from AOCI Three Months Ended March 31, 2015(a)			Amounts Reclassified from AOCI Three Months Ended March 31, 2014(a)			Affected Line Items on Income Statement
	Realized Gains on Investments		$	—		$	18		Other Income
	Tax expense		—			(7		)	Other Income
			—			11
	Amortization of Recognized Net Gain from Defined Benefit Items		135			74			Other Income (b)
	Tax expense		(38		)	(13		)	Other Income
			97			61
	Total Reclassifications for the period, net of tax		$	97		$	72
	(a) Amounts in parentheses indicate loss/expense.
	(b) Included in computation of net periodic pension cost (see Note 2 for additional details).

LongTerm_Debt

Long-Term Debt	3 Months Ended
	Mar. 31, 2015
Notes To Financial Statements [Abstract]
Long-Term Debt
		Long-Term Debt
	Long-Term Debt at March 31, 2015 and December 31, 2014 consisted of the following (in thousands):
				2015			2014
	Connecticut Water Service, Inc.:
	4.09%		Term Loan Note	$	15,221		$	15,466
	The Connecticut Water Company:
	Var.		2004 Series Variable Rate, Due 2029	12,500			12,500
	Var.		2004 Series A, Due 2028	5,000			5,000
	Var.		2004 Series B, Due 2028	4,550			4,550
	5.10%		2009 A Series, Due 2039	19,950			19,950
	5.00%		2011 A Series, Due 2021	23,439			23,483
	3.16%		CoBank Note Payable, Due 2020	8,000			8,000
	3.51%		CoBank Note Payable, Due 2022	14,795			14,795
	4.29%		CoBank Note Payable, Due 2028	17,020			17,020
	4.72%		CoBank Note Payable, Due 2032	14,795			14,795
	4.75%		CoBank Note Payable, Due 2033	14,550			14,550
	Total The Connecticut Water Company			134,599			134,643
	The Maine Water Company:
	8.95%		1994 Series G, Due 2024	9,000			9,000
	2.68%		1999 Series J, Due 2019	339			424
	0.00%		2001 Series K, Due 2031	656			698
	2.58%		2002 Series L, Due 2022	75			83
	1.53%		2003 Series M, Due 2023	361			381
	1.73%		2004 Series N, Due 2024	431			431
	0.00%		2004 Series O, Due 2034	127			133
	1.76%		2006 Series P, Due 2026	411			431
	1.57%		2009 Series R, Due 2029	227			237
	0.00%		2009 Series S, Due 2029	650			672
	0.00%		2009 Series T, Due 2029	1,823			1,886
	0.00%		2012 Series U, Due 2042	160			165
	1.00%		2013 Series V, Due 2033	1,360			1,385
	2.52%		CoBank Note Payable, Due 2017	1,965			1,965
	4.24%		CoBank Note Payable, Due 2024	4,500			4,500
	7.72%		BSWC Series L, Due 2018	2,250			2,250
	2.40%		BSWC Series N, Due 2022	1,176			1,251
	1.86%		BSWC Series O, Due 2025	846			846
	2.23%		BSWC Series P, Due 2028	1,324			1,354
	0.01%		BSWC Series Q, Due 2035	1,864			—
	Various		Various Capital Leases	32			37
	Total The Maine Water Company			29,577			28,129
	Add: Acquisition Fair Value Adjustment			756			820
	Less: Current Portion			(2,464		)	(2,457		)
	Total Long-Term Debt			$	177,689		$	176,601
	There are no mandatory sinking fund payments required on Connecticut Water’s outstanding Water Facilities Revenue Bonds.  However, certain fixed rate Unsecured Water Facilities Revenue Refinancing Bonds provide for an estate redemption right whereby the estate of deceased bondholders or surviving joint owners may submit bonds to the trustee for redemption at par, subject to a $25,000 per individual holder and a 3% annual aggregate limitation.
	On December 22, 2014, Maine Water and CoBank, ACB (“CoBank”) entered into an amendment to Amended and Restated Master Loan Agreement by and between Maine Water and CoBank, dated as of December 1, 2012 (the “Agreement”) pursuant to which CoBank loaned Maine Water $4,500,000. Maine Water intends to use the proceeds of the above described loan from CoBank to refinance existing debt and to finance capital expenditures.
	On March 17, 2015, Maine Water completed the issuance of $1,864,050 aggregate principal amount of its First Mortgage Bonds, Series Q, 0.01% due March 17, 2035 (the “Bonds”). The Bonds were issued by Maine Water to the Maine Municipal Bond Bank (the “Bank”) and the proceeds of the issuance were loaned (the “Loan”) by the Bank to Maine Water pursuant to a Loan Agreement by and between Maine Water and the Bank dated as of March 17, 2015 (the “Loan Agreement”). The proceeds of the Loan will be used by Maine Water to fund various water facilities projects, including the replacement of a booster station and to fund modifications to a treatment plant, each located in the Town of Biddeford, Maine.
	During the first quarter of 2015, the Company paid approximately $245,000 related to Connecticut Water Service’s Term Note Payable issued as part of the acquisition of Maine Water and approximately $416,000 in sinking funds related to Maine Water’s outstanding bonds.
	Financial Covenants – The Company and its subsidiaries are required to comply with certain covenants in connection with various long term loan agreements.  The most restrictive of these covenants is to maintain a consolidated debt to capitalization ratio of not more than 60%. Additionally, Maine Water has restrictions on cash dividends paid based on restricted net assets. The Company and its subsidiaries were in compliance with all covenants at March 31, 2015.

Fair_Value_Disclosures

Fair Value Disclosures	3 Months Ended
	Mar. 31, 2015
Notes To Financial Statements [Abstract]
Fair Value Disclosures
		Fair Value Disclosures
	FASB Accounting Standards Codification (“ASC”) 820, Fair Value Measurements and Disclosures (“FASB ASC 820”) provides enhanced guidance for using fair value to measure assets and liabilities and expands disclosure with respect to fair value measurements.
	FASB ASC 820 establishes a fair value hierarchy that distinguishes between assumptions based on market data (observable inputs) and the Company’s assumptions (unobservable inputs).  The hierarchy consists of three broad levels, as follows:
	Level 1 – Quoted market prices in active markets for identical assets or liabilities.
	Level 2 – Inputs other than Level 1 that are either directly or indirectly observable.
	Level 3 – Unobservable inputs developed using the Company’s estimates and assumptions, which reflect those that the Company believes market participants would use.
	The following table summarizes our financial instruments measured at fair value on a recurring basis within the fair value hierarchy as of March 31, 2015 (in thousands):
		Level 1		Level 2		Level 3		Total
	Asset Type:
	Company Owned Life Insurance	$	—	$	3,031	$	—	$	3,031
	Money Market Fund	112		—		—		112
	Mutual Funds:
	Equity Funds (1)	1,820		—		—		1,820
	Total	$	1,932	$	3,031	$	—	$	4,963
	The following table summarizes our financial instruments measured at fair value on a recurring basis within the fair value hierarchy as of December 31, 2014 (in thousands):
		Level 1		Level 2		Level 3		Total
	Asset Type:
	Company Owned Life Insurance	$	—	$	2,977	$	—	$	2,977
	Money Market Fund	166		—		—		166
	Mutual Funds:
	Equity Funds (1)	1,790		—		—		1,790
	Total	$	1,956	$	2,977	$	—	$	4,933
	-1	Mutual funds consist primarily of equity securities and are presented on the Other Property and Investments line item of the Company’s Condensed Consolidated Balance Sheets.
	The fair value of Company Owned Life Insurance is based on the cash surrender value of the contracts. These contracts are based principally on a referenced pool of investment funds that actively redeem shares and are observable and measurable and are presented on the Other Property and Investments line item of the Company’s Condensed Consolidated Balance Sheets.
	The following methods and assumptions were used to estimate the fair value of each of the following financial instruments, which are not recorded at fair value on the financial statements.
	Cash and cash equivalents – Cash equivalents consist of highly liquid instruments with original maturities at the time of purchase of three months or less.  The carrying amount approximates fair value.  Under the fair value hierarchy the fair value of cash and cash equivalents is classified as a Level 1 measurement.
	Restricted Cash – As part of Maine Water’s March 2015 bond offering, the Company recorded unused proceeds from this bond issuance as restricted cash as the funds can only be used for certain capital expenditures.  The Company expects to use the remainder of the proceeds during 2015, as the approved capital expenditures are completed.  The carrying amount approximates fair value.  Under the fair value hierarchy the fair value of restricted cash is classified as a Level 1 measurement.
	Long-Term Debt – The fair value of the Company’s fixed rate long-term debt is based upon borrowing rates currently available to the Company.  As of March 31, 2015 and December 31, 2014, the estimated fair value of the Company’s long-term debt was $193,877,000 and $189,942,000, respectively, as compared to the carrying amounts of $177,689,000 and $176,601,000, respectively. The estimated fair value of long term debt was calculated using a discounted cash flow model that uses comparable interest rates and yield curve data based on the A-rated MMD (Municipal Market Data) Index which is the benchmark of current municipal bond yields. Under the fair value hierarchy, the fair value of long term debt is classified as a Level 2 measurement.
	Advances for Construction – Customer advances for construction have a carrying amount of $25,854,000 and $26,718,000 at March 31, 2015 and December 31, 2014, respectively. Their relative fair values cannot be accurately estimated since future refund payments depend on several variables, including new customer connections, customer consumption levels and future rate increases.
	The fair values shown above have been reported to meet the disclosure requirements of FASB ASC 825, “Financial Instruments” (“FASB ASC 825”) and do not purport to represent the amounts at which those obligations would be settled.

Segment_Reporting

Segment Reporting	3 Months Ended
	Mar. 31, 2015
Notes To Financial Statements [Abstract]
Segment Reporting
		Segment Reporting
	The Company operates principally in three business segments: Water Activities, Real Estate Transactions, and Services and Rentals. Financial data for the segments is as follows (in thousands):
	Three months ended March 31, 2015
	Segment		Revenues			Pre-Tax Income		Income Tax Expense			Net Income
	Water Activities		$	20,340		$	1,687	$	(1,047	)	$	2,734
	Real Estate Transactions		—			—		—			—
	Services and Rentals		1,362			629		260			369
	Total		$	21,702		$	2,316	$	(787	)	$	3,103
	Three months ended March 31, 2014
	Segment		Revenues			Pre-Tax Income		Income Tax Expense			Net Income
	Water Activities		$	20,620		$	2,918	$	365		$	2,553
	Real Estate Transactions		—			—		—			—
	Services and Rentals		1,412			710		277			433
	Total		$	22,032		$	3,628	$	642		$	2,986
	The revenues shown in Water Activities above consisted of revenues from water customers of $20,030,000 and $20,260,000 for the three months ended March 31, 2015 and 2014, respectively. Additionally, there were revenues associated with utility plant leased to others of $310,000 and $360,000 for the three months ended March 31, 2015 and 2014, respectively. The revenues from water customers for the three months ended March 31, 2015 and 2014 include $189,000 reduction in revenues and $107,000 in additional revenues related to the implementation of the WRA, respectively.
	The Company owns various small, discrete parcels of land that are no longer required for water supply purposes.  From time to time, the Company may sell or donate these parcels, depending on various factors, including the current market for land, the amount of tax benefits received for donations and the Company’s ability to use any benefits received from donations.
	Assets by segment (in thousands):
		March 31, 2015			December 31, 2014
	Total Plant and Other Investments:
	Water Activities	$	515,897		$	514,606
	Non-Water	644			605
		516,541			515,211
	Other Assets:
	Water Activities	154,510			152,929
	Non-Water	2,831			3,049
		157,341			155,978
	Total Assets	$	673,882		$	671,189

Income_Tax_Expense

Income Tax Expense	3 Months Ended
	Mar. 31, 2015
Notes To Financial Statements [Abstract]
Income Taxes
		Income Taxes
	FASB ASC 740 Income Taxes (“FASB ASC 740”) addresses the determination of how tax benefits claimed or expected to be claimed on a tax return should be recorded in the financial statements. Under FASB ASC 740, the Company must recognize the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the financial statements from such a position are measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate resolution.
	On June 11, 2013, the Company was notified by the Connecticut Department of Revenue Services that its state tax filings for the years 2009 through 2011 would be reviewed beginning in the fourth quarter of 2013.  On March 24, 2015, the Company was notified by the Connecticut Department of Revenue Services that the audit was expanded to include the 2012 and 2013 tax years. The State focused its review on tax credits associated with fixed capital investment. The Company and the State have come to an agreement regarding investments eligible for the credit. The closing agreement was executed on May 4, 2015. The Company had previously recorded a provision for the possible disallowance of these credits and therefore there was minimal impact in 2015.
	On the 2012 Federal tax return, filed in September 2013, Connecticut Water filed a change in accounting method to adopt the IRS’ temporary tangible property regulations.  This method change allowed the Company to take a current year deduction for expenses that were previously capitalized for tax purposes. Since the filing of the 2012 tax return, the IRS has issued final regulations.  On February 11, 2014, the Company was notified by the IRS that its Federal tax filing for 2012 would be reviewed. This review, which began in the first quarter of 2014 and was completed in the first quarter of 2015, resulted in no change to the tax liability. Since the Company had previously recorded a provision for the possible disallowance of the repair deduction in prior periods, the completion of the audit resulted in the reversal of the reserves in the amount of $1,185,000. While the Company maintains the belief that the deduction taken on its tax return is appropriate, the methodology for determining the deduction has not been agreed to by the taxing authorities.  On the 2013 Federal tax return, filed in September 2014, Maine Water filed the same change in accounting method. Through March 31, 2015, the Company has recorded, as required by FASB ASC 740, a provision of $4.4 million for a portion of the benefit that is not being returned to customers resulting from any possible future tax authority challenge.
	From time to time, the Company may be assessed interest and penalties by taxing authorities.  In those cases, the charges would appear on the Other line item within the Other Income (Deductions), Net of Taxes section of the Company’s Condensed Consolidated Statements of Income.  There were no such charges for the three months ended March 31, 2015 and 2014.  Additionally, there were no accruals relating to interest or penalties as of March 31, 2015 and December 31, 2014.  The Company remains subject to examination by federal tax authorities for the 2011 and 2013 tax years; and the state tax authorities for the 2009 through 2013 tax years.
	The Company is currently engaged in an analysis to determine the amount of expenditures related to tangible property that will be reflected on its 2015 Federal Tax Return to be filed in September 2016.  As a result, through the first quarter of 2015, the Company has estimated the portion of its infrastructure investment that will qualify as a repair deduction for 2015 and has reflected that deduction in its effective tax rate at 75% of the expected $17 million of infrastructure improvement.  Consistent with other differences between book and tax expenditures, the Company is required to use the flow-through method to account for any timing differences not required by the IRS to be normalized.
	The Company’s effective income tax rate for the three months ended March 31, 2015 and 2014 was (34.0)% and 17.7%, respectively.  The Company’s effective tax rate, excluding discrete items booked during the quarter, was 11.8% for the three months ended March 31, 2015. These discrete items include adjustments related to the provisions for the repair deduction and the Connecticut credits. The statutory income tax rates during each period were 41%.  In determining its annual estimated effective tax rate for interim periods, the Company reflects its estimated permanent and flow-through tax differences for the taxable year, including the basis difference for the adoption of the tangible property regulations in the current year.

Lines_of_Credit

Lines of Credit	3 Months Ended
	Mar. 31, 2015
Notes To Financial Statements [Abstract]
Lines of Credit
		Lines of Credit
	The Company maintains a $15.0 million line of credit agreement with CoBank, that is currently scheduled to expire on July 1, 2016.  The Company maintains an additional line of credit of $20.0 million with RBS Citizens, N.A., with an expiration date of June 30, 2017.  As of March 31, 2015, the total lines of credit available to the Company were $35.0 million.  As of March 31, 2015 and December 31, 2014, the Company had $5.4 million and $2.0 million, respectively, of Interim Bank Loans Payable. As of March 31, 2015, the Company had $29.6 million in unused lines of credit.  Interest expense charged on lines of credit will fluctuate based on market interest rates.

Pension_and_Other_PostRetireme1

Pension and Other Post-Retirement Benefits Pension and Post-Retirement Benefits (Tables)	3 Months Ended
	Mar. 31, 2015
Pension and Other Post-Retirement Benefits [Abstract]
Schedule of Net Benefit Costs [Table Text Block]	Pension Benefits
	Components of Net Periodic Cost (in thousands):
		Three Months
	Period ended March 31,	2015			2014
	Service Cost	$	570		$	488
	Interest Cost	771			763
	Expected Return on Plan Assets	(966		)	(889		)
	Amortization of:
	Prior Service Cost	4			18
	Net Recognized Loss	691			273
	Net Periodic Benefit Cost	$	1,070		$	653
schedule of post retirement benefits other than pension costs [Table Text Block]	Post-Retirement Benefits Other Than Pension (PBOP)
	Components of Net Periodic Cost (in thousands):
		Three Months
	Period ended March 31,	2015			2014
	Service Cost	$	152		$	154
	Interest Cost	147			160
	Expected Return on Plan Assets	(81		)	(77		)
	Other	56			56
	Amortization of:
	Prior Service Credit	(142		)	(201		)
	Recognized Net Loss	110			68
	Net Periodic Benefit Cost	$	242		$	160

Earnings_per_Share_Earnings_pe

Earnings per Share Earnings per Share (Tables)	3 Months Ended
	Mar. 31, 2015
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Earnings per weighted average common share are calculated by dividing net income applicable to common stock by the weighted average number of shares of common stock outstanding during the respective periods as detailed below (diluted shares include the effect of stock awards):
	Three months ended March 31,	2015		2014
	Common Shares Outstanding End of Period:	11,151,193		11,078,336
	Weighted Average Shares Outstanding (Days Outstanding Basis):
	Basic	10,924,330		10,868,784
	Diluted	11,144,297		11,061,324
	Basic Earnings per Share	$	0.28	$	0.27
	Dilutive Effect of Stock Awards	—		—
	Diluted Earnings per Share	$	0.28	$	0.27

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Mar. 31, 2015
Accumulated Other Comprehensive Income (Loss) [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	The changes in Accumulated Other Comprehensive Income (Loss) (“AOCI”) by component, net of tax, for the three months ended March 31, 2015 and 2014 is as follows (in thousands):
	Three months ended March 31, 2015	Unrealized Gains on Investments			Defined Benefit Items			Total
	Beginning Balance (a)	$	298		$	(1,901	)	$	(1,603	)
	Other Comprehensive Income (Loss) Before Reclassification	14			—			14
	Amounts Reclassified from AOCI	—			97			97
	Net current-period Other Comprehensive Income (Loss)	14			97			111
	Ending Balance	$	312		$	(1,804	)	$	(1,492	)
	Three months ended March 31, 2014	Unrealized Gains on Investments			Defined Benefit Items			Total
	Beginning Balance (a)	$	259		$	(374	)	$	(115	)
	Other Comprehensive Income (Loss) Before Reclassification	(14		)	—			(14		)
	Amounts Reclassified from AOCI	11			61			72
	Net current-period Other Comprehensive Income (Loss)	(3		)	61			58
	Ending Balance	$	256		$	(313	)	$	(57	)
	(a) All amounts shown are net of tax. Amounts in parentheses indicate loss.
	The following table sets forth the amounts reclassified from AOCI by component and the affected line item on the Condensed Consolidated Statements of Income for the three months ended March 31, 2015 and 2014 (in thousands):
	Details about Other AOCI Components	Amounts Reclassified from AOCI Three Months Ended March 31, 2015(a)			Amounts Reclassified from AOCI Three Months Ended March 31, 2014(a)			Affected Line Items on Income Statement
	Realized Gains on Investments	$	—		$	18		Other Income
	Tax expense	—			(7		)	Other Income
		—			11
	Amortization of Recognized Net Gain from Defined Benefit Items	135			74			Other Income (b)
	Tax expense	(38		)	(13		)	Other Income
		97			61
	Total Reclassifications for the period, net of tax	$	97		$	72
	(a) Amounts in parentheses indicate loss/expense.
	(b) Included in computation of net periodic pension cost (see Note 2 for additional details).

LongTerm_Debt_LongTerm_Debt_Ta

Long-Term Debt Long-Term Debt (Tables)	3 Months Ended
	Mar. 31, 2015
Long-term Debt, Unclassified [Abstract]
Schedule of Long-term Debt Instruments [Table Text Block]	Long-Term Debt at March 31, 2015 and December 31, 2014 consisted of the following (in thousands):
			2015			2014
	Connecticut Water Service, Inc.:
	4.09%	Term Loan Note	$	15,221		$	15,466
	The Connecticut Water Company:
	Var.	2004 Series Variable Rate, Due 2029	12,500			12,500
	Var.	2004 Series A, Due 2028	5,000			5,000
	Var.	2004 Series B, Due 2028	4,550			4,550
	5.10%	2009 A Series, Due 2039	19,950			19,950
	5.00%	2011 A Series, Due 2021	23,439			23,483
	3.16%	CoBank Note Payable, Due 2020	8,000			8,000
	3.51%	CoBank Note Payable, Due 2022	14,795			14,795
	4.29%	CoBank Note Payable, Due 2028	17,020			17,020
	4.72%	CoBank Note Payable, Due 2032	14,795			14,795
	4.75%	CoBank Note Payable, Due 2033	14,550			14,550
	Total The Connecticut Water Company		134,599			134,643
	The Maine Water Company:
	8.95%	1994 Series G, Due 2024	9,000			9,000
	2.68%	1999 Series J, Due 2019	339			424
	0.00%	2001 Series K, Due 2031	656			698
	2.58%	2002 Series L, Due 2022	75			83
	1.53%	2003 Series M, Due 2023	361			381
	1.73%	2004 Series N, Due 2024	431			431
	0.00%	2004 Series O, Due 2034	127			133
	1.76%	2006 Series P, Due 2026	411			431
	1.57%	2009 Series R, Due 2029	227			237
	0.00%	2009 Series S, Due 2029	650			672
	0.00%	2009 Series T, Due 2029	1,823			1,886
	0.00%	2012 Series U, Due 2042	160			165
	1.00%	2013 Series V, Due 2033	1,360			1,385
	2.52%	CoBank Note Payable, Due 2017	1,965			1,965
	4.24%	CoBank Note Payable, Due 2024	4,500			4,500
	7.72%	BSWC Series L, Due 2018	2,250			2,250
	2.40%	BSWC Series N, Due 2022	1,176			1,251
	1.86%	BSWC Series O, Due 2025	846			846
	2.23%	BSWC Series P, Due 2028	1,324			1,354
	0.01%	BSWC Series Q, Due 2035	1,864			—
	Various	Various Capital Leases	32			37
	Total The Maine Water Company		29,577			28,129
	Add: Acquisition Fair Value Adjustment		756			820
	Less: Current Portion		(2,464		)	(2,457		)
	Total Long-Term Debt		$	177,689		$	176,601

Fair_Value_Disclosures_Fair_Va

Fair Value Disclosures Fair Value Disclosures (Tables)	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	The following table summarizes our financial instruments measured at fair value on a recurring basis within the fair value hierarchy as of March 31, 2015 (in thousands):
		Level 1		Level 2		Level 3		Total
	Asset Type:
	Company Owned Life Insurance	$	—	$	3,031	$	—	$	3,031
	Money Market Fund	112		—		—		112
	Mutual Funds:
	Equity Funds (1)	1,820		—		—		1,820
	Total	$	1,932	$	3,031	$	—	$	4,963
	The following table summarizes our financial instruments measured at fair value on a recurring basis within the fair value hierarchy as of December 31, 2014 (in thousands):
		Level 1		Level 2		Level 3		Total
	Asset Type:
	Company Owned Life Insurance	$	—	$	2,977	$	—	$	2,977
	Money Market Fund	166		—		—		166
	Mutual Funds:
	Equity Funds (1)	1,790		—		—		1,790
	Total	$	1,956	$	2,977	$	—	$	4,933
	-1	Mutual funds consist primarily of equity securities and are presented on the Other Property and Investments line item of the Company’s Condensed Consolidated Balance Sheets.

Segment_Reporting_Segment_Repo

Segment Reporting Segment Reporting (Tables)	3 Months Ended
	Mar. 31, 2015
Segment Reporting [Abstract]
Reconciliation of Revenue from Segments to Consolidated [Table Text Block]	Financial data for the segments is as follows (in thousands):
	Three months ended March 31, 2015
	Segment		Revenues			Pre-Tax Income		Income Tax Expense			Net Income
	Water Activities		$	20,340		$	1,687	$	(1,047	)	$	2,734
	Real Estate Transactions		—			—		—			—
	Services and Rentals		1,362			629		260			369
	Total		$	21,702		$	2,316	$	(787	)	$	3,103
	Three months ended March 31, 2014
	Segment		Revenues			Pre-Tax Income		Income Tax Expense			Net Income
	Water Activities		$	20,620		$	2,918	$	365		$	2,553
	Real Estate Transactions		—			—		—			—
	Services and Rentals		1,412			710		277			433
	Total		$	22,032		$	3,628	$	642		$	2,986
Reconciliation of Assets from Segment to Consolidated [Table Text Block]	Assets by segment (in thousands):
		March 31, 2015			December 31, 2014
	Total Plant and Other Investments:
	Water Activities	$	515,897		$	514,606
	Non-Water	644			605
		516,541			515,211
	Other Assets:
	Water Activities	154,510			152,929
	Non-Water	2,831			3,049
		157,341			155,978
	Total Assets	$	673,882		$	671,189

Basis_of_Preparation_of_Financ1

Basis of Preparation of Financials In text details (Details)	Mar. 31, 2015
	Rate
Maine Water Company [Member]
Allowed Rate of Return on Equity	9.50%
Allowed Return on Rate Base	7.96%
The Connecticut Water Company [Member]
Allowed Rate of Return on Equity	9.75%
Allowed Return on Rate Base	7.32%

Pension_and_Other_PostRetireme2

Pension and Other Post-Retirement Benefits Pension Benefit Cost (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Pension Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Service Cost	$570	$488
Defined Benefit Plan, Interest Cost	771	763
Defined Benefit Plan, Expected Return on Plan Assets	-966	-889
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	4	18
Defined Benefit Plan, Amortization of Gains (Losses)	691	273
Defined Benefit Plan, Net Periodic Benefit Cost	1,070	653
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Service Cost	152	154
Defined Benefit Plan, Interest Cost	147	160
Defined Benefit Plan, Expected Return on Plan Assets	-81	-77
Defined benefit plan amortization of regulatory assets	56	56
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	-142	-201
Defined Benefit Plan, Amortization of Gains (Losses)	110	68
Defined Benefit Plan, Net Periodic Benefit Cost	$242	$160

Earnings_per_Share_Earnings_pe1

Earnings per Share Earnings per Share (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Common Stock, Shares, Outstanding	11,151,193	11,078,336	11,124,630
Weighted Average Number of Shares Outstanding, Basic	10,924,330	10,868,784
Diluted (in shares)	11,144,297	11,061,324
Basic (in dollars per share)	$0.28	$0.27
Incremental Common Shares Attributal To Share Based Payements Arrangements	$0	$0
Earnings Per Share, Diluted	$0.28	$0.27

Earnings_per_Share_EPS_in_Text

Earnings per Share EPS in Text Tagging (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition	1 year 5 months 12 days
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized	$1.70

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income (Loss) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss) Tables [Abstract]
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, before Tax	$0	$18
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Tax	0	-7
Accumulated Other Comprehensive Loss	-1,492	-57	-1,603	-115
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax	0	11
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, before Tax	135	74
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax	-38	-13
Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	312	256	298	259
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	-1,804	-313	-1,901	-374
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Reclassification Adjustments, Net of Tax	14	-14
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, before Reclassification Adjustments, Net of Tax	0	0
Total Other Comprehensive Income Before Reclassification, Net of Tax	14	-14
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, Net of Tax	97	61
Total Amounts Reclassified From AOCI, Net of Tax	97	72
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	14	-3
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	97	61
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	$111	$58

LongTerm_Debt_LongTerm_Debt_De

Long-Term Debt Long-Term Debt (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	$177,689	$176,601
Long-term Debt, Current Maturities	-2,464	-2,457
Long-term Debt	177,689	176,601
Parent [Member] | Connecticut Water Service Term Loan Note and Supplement A [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	15,221	15,466
The Connecticut Water Company [Member]
Debt Instrument [Line Items]
Long-term Debt, Current Maturities	-134,599	-134,643
The Connecticut Water Company [Member] | Unsecured Water Facilities Revenue Refinancing Bonds Series Issued 2004, Due 2029 [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	12,500	12,500
The Connecticut Water Company [Member] | Unsecured Water Facilities Revenue Refinancing Bonds Series A Issued 2004 Due 2028 [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	5,000	5,000
The Connecticut Water Company [Member] | Unsecured Water Facilities Revenue Refinancing Bonds Series B Issued 2004 Due 2028 [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	4,550	4,550
The Connecticut Water Company [Member] | Unsecured Water Facilities Revenue Refinancing Bonds Series A Issued 2009, Due 2039 [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	19,950	19,950
The Connecticut Water Company [Member] | CoBank Note Payable, Due 2020 [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	8,000	8,000
The Connecticut Water Company [Member] | CoBank Note Payable Due 2022 [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	14,795	14,795
The Connecticut Water Company [Member] | Unsecured Water Facilities Revenue Refinancing Bonds Series A Issued 2011 Due 2021 [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	23,439	23,483
The Connecticut Water Company [Member] | CoBank Note Payable Due 2028 [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	17,020	17,020
The Connecticut Water Company [Member] | CoBank Note Payable Due 2032 [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	14,795	14,795
The Connecticut Water Company [Member] | CoBank Note Payable, Due 2033 [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	14,550	14,550
Maine Water Company [Member]
Debt Instrument [Line Items]
Long-term Debt, Current Maturities	-29,577	-28,129
Maine Water Company [Member] | Maine Water Company Series G [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	9,000	9,000
Maine Water Company [Member] | Maine Water Company Series J [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	339	424
Maine Water Company [Member] | Maine Water Company Series K [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	656	698
Maine Water Company [Member] | Maine Water Company Series L [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	75	83
Maine Water Company [Member] | Maine Water Company Series M [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	361	381
Maine Water Company [Member] | Maine Water Company Series N [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	431	431
Maine Water Company [Member] | Maine Water Company Series O [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	127	133
Maine Water Company [Member] | Maine Water Company Series P [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	411	431
Maine Water Company [Member] | Maine Water Company Series R [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	227	237
Maine Water Company [Member] | Maine Water Company Series S [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	650	672
Maine Water Company [Member] | Maine Water Company Series T [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	1,823	1,886
Maine Water Company [Member] | Fair Value Adjustment of Long-Term Debt Assume [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	756	820
Maine Water Company [Member] | 2012 Series U, Due 2042 [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	160	165
Maine Water Company [Member] | 2013 Series V, Due 2033 [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	1,360	1,385
Maine Water Company [Member] | CoBank Note Payable, Due 2017 [Member]
Debt Instrument [Line Items]
Long-term Debt, Current Maturities	-1,965	-1,965
Maine Water Company [Member] | CoBank Note Payable, Due 2024 [Member]
Debt Instrument [Line Items]
Long-term Debt, Current Maturities	-4,500	-4,500
Maine Water Company [Member] | Series L, Due 2018 [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	2,250	2,250
Maine Water Company [Member] | Series N, Due 2022 [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	1,176	1,251
Maine Water Company [Member] | Series O, Due 2025 [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	846	846
Maine Water Company [Member] | Series P, Due 2028 [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	1,324	1,354
Maine Water Company [Member] | Series Q, Due 2028 [Member]
Debt Instrument [Line Items]
Long-term Debt, Current Maturities	-1,864	0
Maine Water Company [Member] | Long Term Capital Leases [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	$32	$37

LongTerm_Debt_LongTerm_Debt_Pa

Long-Term Debt Long-Term Debt Parenthetical (Details)	Mar. 31, 2015	Dec. 31, 2014
Parent [Member] | Connecticut Water Service Term Loan Note and Supplement A [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.09%	4.09%
The Connecticut Water Company [Member] | Unsecured Water Facilities Revenue Refinancing Bonds Series A Issued 2009, Due 2039 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.10%	5.10%
The Connecticut Water Company [Member] | Unsecured Water Facilities Revenue Refinancing Bonds Series A Issued 2011 Due 2021 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.00%	5.00%
The Connecticut Water Company [Member] | CoBank Note Payable, Due 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.16%	3.16%
The Connecticut Water Company [Member] | CoBank Note Payable Due 2022 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.51%	3.51%
The Connecticut Water Company [Member] | CoBank Note Payable Due 2028 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.29%	4.29%
The Connecticut Water Company [Member] | CoBank Note Payable Due 2032 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.72%	4.72%
The Connecticut Water Company [Member] | CoBank Note Payable, Due 2033 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.75%	4.75%
Maine Water Company [Member] | Maine Water Company Series G [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	8.95%	8.95%
Maine Water Company [Member] | Maine Water Company Series J [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.68%	2.68%
Maine Water Company [Member] | Maine Water Company Series K [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	0.00%	0.00%
Maine Water Company [Member] | Maine Water Company Series L [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.58%	2.58%
Maine Water Company [Member] | Maine Water Company Series M [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.53%	1.53%
Maine Water Company [Member] | Maine Water Company Series N [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.73%	1.73%
Maine Water Company [Member] | Maine Water Company Series O [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	0.00%	0.00%
Maine Water Company [Member] | Maine Water Company Series P [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.76%	1.76%
Maine Water Company [Member] | Maine Water Company Series R [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.57%	1.57%
Maine Water Company [Member] | Maine Water Company Series S [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	0.00%	0.00%
Maine Water Company [Member] | Maine Water Company Series T [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	0.00%	0.00%
Maine Water Company [Member] | 2012 Series U, Due 2042 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	0.00%	0.00%
Maine Water Company [Member] | 2013 Series V, Due 2033 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.00%	1.00%
Maine Water Company [Member] | CoBank Note Payable, Due 2017 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.00%	3.00%
Maine Water Company [Member] | Series L, Due 2018 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	7.72%	7.72%
Maine Water Company [Member] | Series N, Due 2022 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.40%	2.40%
Maine Water Company [Member] | Series O, Due 2025 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.86%	1.86%
Maine Water Company [Member] | Series P, Due 2028 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.23%	2.23%
Maine Water Company [Member] | Series Q, Due 2028 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	0.01%	0.01%

LongTerm_Debt_LongTerm_Debt_in

Long-Term Debt Long-Term Debt in Text (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Long-term Debt, Current Maturities	$2,464,000	$2,457,000
Monetary Limit of Deceased Bond Holders Redemption per Year	$25,000
Percent Limit of Deceased Bond Holders Redemption per Year	3.00%

Fair_Value_Disclosures_Fair_Va1

Fair Value Disclosures Fair Value of Financial Instruments (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	$4,963	$4,933
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	1,932	1,956
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	3,031	2,977
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Cash Surrender Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	3,031	2,977
Cash Surrender Value [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Cash Surrender Value [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	3,031	2,977
Cash Surrender Value [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	112	166
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	112	166
Money Market Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Money Market Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Equity Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	1,820	1,790
Equity Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	1,820	1,790
Equity Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Equity Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	$0	$0

Fair_Value_Disclosures_In_Text

Fair Value Disclosures In Text Tagging (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Debt, Fair Value	$193,877	$189,942
Long-term Debt	177,689	176,601
Advances for Construction	$25,854	$26,718

Segment_Reporting_Segment_Repo1

Segment Reporting Segment Reporting (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Segment Reporting Information [Line Items]
Revenues	$21,702	$22,032
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	2,316	3,628
Income Tax Expense (Benefit), Continuing Operations	-787	642
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	3,103	2,986
Water Activities [Member]
Segment Reporting Information [Line Items]
Revenues	20,340	20,620
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	1,687	2,918
Income Tax Expense (Benefit), Continuing Operations	-1,047	365
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	2,734	2,553
Real Estate Transactions [Member]
Segment Reporting Information [Line Items]
Revenues	0	0
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	0	0
Income Tax Expense (Benefit), Continuing Operations	0	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	0	0
Services and Rentals [Member]
Segment Reporting Information [Line Items]
Revenues	1,362	1,412
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	629	710
Income Tax Expense (Benefit), Continuing Operations	260	277
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$369	$433

Segment_Reporting_Segment_Repo2

Segment Reporting Segment Reporting Textual Information (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Segment Reporting Information [Line Items]
Operating Revenues	$20,030,000	$20,260,000
Regulated Operating Revenue, Other	310,000	360,000
Water Revenue Adjustment	($189,000)	$107,000

Segment_Reporting_Assets_by_Se

Segment Reporting Assets by Segment (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Segment Reporting Information [Line Items]
Total Plant and Other Investments	$516,541	$515,211
Other Assets	157,341	155,978
Assets	673,882	671,189
Water Activities [Member]
Segment Reporting Information [Line Items]
Total Plant and Other Investments	515,897	514,606
Other Assets	154,510	152,929
Services and Rentals and Real Estate Combine [Member]
Segment Reporting Information [Line Items]
Total Plant and Other Investments	644	605
Other Assets	$2,831	$3,049

Income_Tax_Expense_Income_Tax_

Income Tax Expense Income Tax Expense (Details)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
	Rate	Rate
Income Taxes [Abstract]
Effective Income Tax Rate, Continuing Operations	-34.00%	17.70%
Effective Tax Rate Excluding Reserve Against Fixed Capital Investment Credits Claimed in Prior Years	11.80%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate	41.00%

Lines_of_Credit_Lines_of_Credi

Lines of Credit Lines of Credit (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Short-term Debt [Line Items]
Line of Credit Facility, Current Borrowing Capacity	$35,000,000
Interim Bank Loans Payable	5,422,000	1,991,000
Line of Credit Facility, Remaining Borrowing Capacity	29,600,000
CTWS Line of Credit A [Member]
Short-term Debt [Line Items]
Line of Credit Facility, Current Borrowing Capacity	15,000,000
CTWS Line of Credit B [Member]
Short-term Debt [Line Items]
Line of Credit Facility, Current Borrowing Capacity	$20,000,000