XML 21 R30.htm IDEA: XBRL DOCUMENT
v3.20.1

NSC and AdR project development (Details) $ / shares in Units, gal in Millions |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended | 36 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 12, 2019 | Aug. 22, 2016 | Feb. 28, 2018 | Aug. 22, 2016 gal | Nov. 30, 2015 gal | Feb. 28, 2014 USD ($) | May 31, 2013 USD ($) $ / shares | Feb. 29, 2012 USD ($) | May 31, 2010 gal | Mar. 31, 2020 USD ($) | Mar. 31, 2019 USD ($) | Dec. 31, 2015 gal | Dec. 31, 2012 USD ($) m² | Dec. 31, 2014 USD ($) ha | Dec. 31, 2019 USD ($) | Feb. 26, 2019 MXN ($) | Dec. 31, 2018 | Sep. 30, 2018 | Dec. 31, 2017
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Period Required To Operate And Maintain Plant And Aqueduct |  | 37 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
General and administrative expenses |  |  |  |  |  |  |  |  |  | $ 5,153,757 | $ 4,378,034 |  |  |  |  |  |  |  |
Assets, Total |  |  |  |  |  |  |  |  |  | 185,692,159 |  |  |  |  | $ 192,292,144 |  |  |  |
Liabilities, Total |  |  |  |  |  |  |  |  |  | 14,117,652 |  |  |  |  | 14,339,270 |  |  |  |
Payments For Option Exercised |  |  |  |  |  | $ 1,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Land Available for Development |  |  |  |  |  |  |  |  |  | $ 24,162,523 |  |  |  |  | 24,162,523 |  |  |  |
Share Price | $ / shares |  |  |  |  |  |  | $ 1.0 |  |  |  |  |  |  |  |  |  |  |  |
Subscription Agreement Description |  |  | The Agreement calls for NSC to retain a minimum of 25% of the equity in AdR. One or more affiliates of Greenfield SPV VII, S.A.P.I. de C.V. ("Greenfield"), a Mexico company managed by an affiliate of a leading U.S. asset manager, will acquire a minimum of 55% of the equity of AdR. The Agreement also provides Suez MA with the option to purchase 20% of the equity of AdR. If Suez MA does not exercise this option, NSC will retain 35% of the equity of AdR and Greenfield will acquire 65% of the equity of AdR. The Agreement will become effective when the conditions precedent related to the Project are met, including but not limited to those conditions discussed previously. The aggregate investment to be made by the equity partners in the Project, in the form of equity and subordinated shareholder loans, is presently estimated at approximately 20% of the total cost of Phase 1 of the Project. This Agreement was originally scheduled to expire on June 30, 2019 but has been extended to September 30, 2020. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Security Deposit Liability |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,000,000 |  |  |
Loss Contingency, Actions Taken by Court, Arbitrator or Mediator | Tenth Civil Judge granted EWG the opportunity to file a counter guarantee in the amount of 1,500,000 Mexican pesos to maintain the ex-parte preliminary relief granted in its favor. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aguas de Rosarito S.A.P.I. de C.V [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  |  |  |  |  |  |  |  |  | 50.00% |  |  |  |  |  |  |  | 0.40% |
Option agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments To Enter Option Agreement |  |  |  |  |  |  |  | $ 300,000 |  |  |  |  |  |  |  |  |  |  |
NSC Agua [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |  |  |  |  |  |  |  |  | 50.00% |  |  |  |  |  |  |  |  |  |
Seawater Reverse Osmosis Desalination Plant Per Day Processing Capacity | gal |  |  |  | 100 |  |  |  |  | 100 |  |  |  |  |  |  |  |  |  |
General and administrative expenses |  |  |  |  |  |  |  |  |  | $ 458,000 | $ 484,000 |  |  |  |  |  |  |  |
Lease Term |  |  |  |  |  |  |  |  |  |  |  |  | 20 years |  |  |  |  |  |
Assets, Total |  |  |  |  |  |  |  |  |  | 29,000,000 |  |  |  |  | 29,300,000 |  |  |  |
Liabilities, Total |  |  |  |  |  |  |  |  |  | $ 2,300,000 |  |  |  |  | $ 2,900,000 |  |  |  |
Operating Leases, Rent Expense Every Two months |  |  |  |  |  |  |  |  |  |  |  |  | $ 26,000 |  |  |  |  |  |
Total Voting Interest Percentage After Conversion Of Loan |  |  |  |  |  |  |  |  | 99.99% |  |  |  |  |  |  |  |  |  |
Percentage of Voting Interest Acquired through Option Agreement |  |  |  |  |  | 25.00% | 25.00% |  |  |  |  |  |  |  |  |  |  |  |
Payments For Option Exercised |  |  |  |  |  | $ 1,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Area of Land |  |  |  |  |  |  |  |  |  |  |  |  | 5,000 | 20.1 |  |  |  |  |
Equity Method Investment, Ownership Percentage |  |  |  |  |  |  |  |  |  | 50.00% |  |  |  |  |  |  |  |  |
Land Available for Development |  |  |  |  |  |  |  |  |  | $ 24,200,000 |  |  |  |  |  |  |  |  |
NSC Agua [Member] | Aguas de Rosarito S.A.P.I. de C.V [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  |  | 0.40% |  |  |  |  |  |  |  |  |  |  |  |  |  | 99.60% |  | 99.60%
NSC Agua [Member] | First Phase [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Seawater Reverse Osmosis Desalination Plant Per Day Processing Capacity | gal |  |  |  | 50 | 50 |  |  |  |  |  |  | 50 |  |  |  |  |  |  |
NSC Agua [Member] | Second Phase [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Seawater Reverse Osmosis Desalination Plant Per Day Processing Capacity | gal |  |  |  | 50 | 50 |  |  |  |  |  |  | 50 |  |  |  |  |  |  |
NSC Agua [Member] | Option agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Percentage Of Ownership Interest In An Acquired Company |  |  |  |  |  |  |  |  |  | 99.99% |  |  |  |  |  |  |  |  |
Repayment of inter-company loan payable |  |  |  |  |  |  | $ 5,700,000 |  |  |  |  |  |  |  |  |  |  |  |
Total Voting Interest Percentage After Conversion Of Loan |  |  |  |  |  |  | 99.99% |  |  |  |  |  |  |  |  |  |  |  |
Option Agreement Expiration Date |  |  |  |  |  |  |  | Feb. 07, 2014 |  |  |  |  |  |  |  |  |  |  |
NSA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Land |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 20,600,000 |  |  |  |  |

X
- Definition Represents the period of lease. + References No definition available. + Details
Name: | cwco_LeaseTerm
Namespace Prefix: | cwco_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Value of Rent expenses that are paid for every two months. + References No definition available. + Details
Name: | cwco_OperatingLeasesRentExpensePerEveryTwoMonths
Namespace Prefix: | cwco_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Expiration date of the option agreement. + References No definition available. + Details
Name: | cwco_OptionAgreementExpirationDate
Namespace Prefix: | cwco_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of cash outflow associated with the option exercised by the entity. + References No definition available. + Details
Name: | cwco_PaymentsForOptionExercised
Namespace Prefix: | cwco_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents the amount spent to enter a stock option agreement. + References No definition available. + Details
Name: | cwco_PaymentsToEnterOptionAgreement
Namespace Prefix: | cwco_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Percentage of voting interest acquired through Option agreements. + References No definition available. + Details
Name: | cwco_PercentageOfVotingInterestAcquiredThroughOptionAgreement
Namespace Prefix: | cwco_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The period required to operate and maintain the plant and aqueduct. + References No definition available. + Details
Name: | cwco_PeriodRequiredToOperateAndMaintainPlantAndAqueduct
Namespace Prefix: | cwco_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the repayment of an inter-company loan payable through the issuance of shares of subsidiary stock. + References No definition available. + Details
Name: | cwco_RepaymentOfInterCompanyLoanPayable
Namespace Prefix: | cwco_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The processing capacity per day seawater reverse osmosis desalination plant. + References No definition available. + Details
Name: | cwco_SeawaterReverseOsmosisDesalinationPlantPerDayProcessingCapacity
Namespace Prefix: | cwco_
Data Type: | num:volumeItemType
Balance Type: | na
Period Type: | duration

X
- Definition The description of subscription agreement on the basis of which equity interest can be acquired during the year. + References No definition available. + Details
Name: | cwco_SubscriptionAgreementDescription
Namespace Prefix: | cwco_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total percentage of ownership interest in an acquired company. + References No definition available. + Details
Name: | cwco_TotalPercentageOfOwnershipInterestInAcquiredCompany
Namespace Prefix: | cwco_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Total percentage of ownership interest in an acquired company. + References No definition available. + Details
Name: | cwco_TotalVotingInterestPercentageAfterConversionOfLoan
Namespace Prefix: | cwco_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Area of land held. + References No definition available. + Details
Name: | us-gaap_AreaOfLand
Namespace Prefix: | us-gaap_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(11)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(12)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 + Details
Name: | us-gaap_Assets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
Name: | us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
Name: | us-gaap_GeneralAndAdministrativeExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Carrying amount of land available for development. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.(a),1(d)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 + Details
Name: | us-gaap_LandAvailableForDevelopment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19-26) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_Liabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Describes important rulings or decisions made by the judge, arbitrator or mediator in the legal matter that could impact the outcome of the case. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14435-108349 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14557-108349 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349 + Details
Name: | us-gaap_LossContingencyActionsTakenByCourtArbitratorOrMediator
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The cash outflow from the acquisition of real estate intended to generate income for the owner; excludes land acquired for use by the owner. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireLand
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ScheduleOfInvestmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition This element represents money paid in advance to protect the provider of a product or service, such as a lessor, against damage or nonpayment by the buyer or tenant (lessee) during the term of the agreement. Such damages may include physical damage to the property, theft of property, and other contractual breaches. Security deposits held may be interest or noninterest bearing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15(a)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 + Details
Name: | us-gaap_SecurityDepositLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Price of a single share of a number of saleable stocks of a company. + References No definition available. + Details
Name: | us-gaap_SharePrice
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=cwco_AguasDeRosaritoSapiDeCvMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=cwco_OptionAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=cwco_NSCAguaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | cwco_TypeOfPhasesAxis=cwco_FirstPhaseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | cwco_TypeOfPhasesAxis=cwco_SecondPhaseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=cwco_NsaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |