Significant Accounting Policies (Policies)	12 Months Ended
Significant Accounting Policies (Policies)	Dec. 31, 2017
Accounting Policies [Abstract]
Consolidation, Policy [Policy Text Block]	Consolidation CEN’s consolidated financial statements include the accounts of CEN, CEN Holdings, and Eastern Starr (collectively, the “Company”). CEN Holdings’ purpose was to ease and facilitate US banking transactions. Eastern Starr’s purpose is to facilitate future growth opportunities in the LED lighting sector. All material intercompany transactions are eliminated in consolidation.
Basis of Accounting, Policy [Policy Text Block]	Basis of Accounting The Company’s consolidated financial statements are prepared using the accrual method of accounting in accordance with accounting principles generally accepted in the United States of America. The functional currency of the Company is the U.S. dollar.
Use of Estimates, Policy [Policy Text Block]	Use of Estimates and Assumptions The accompanying consolidated financial statements include certain estimates and assumptions which affect the reported amounts of assets and liabilities at the date of the financial statements (including intangible assets), and the reported amounts of expenses during the reporting period, including stock-based compensation. Accordingly, actual results may differ from those estimates.
Cash and Cash Equivalents, Policy [Policy Text Block]	Cash and Cash Equivalents For purposes of the balance sheet and statement of cash flows, the Company considers all highly liquid instruments with a maturity of three months or less at the time of issuance to be cash equivalents.
Property, Plant and Equipment, Policy [Policy Text Block]	Property and Equipment Property and equipment is recorded at cost. Depreciation and amortization of property and equipment is provided using the straight-line method over the estimated useful lives of the assets, which range from 5 to 7 years. The cost of asset additions and improvements that extend the useful lives of property and equipment are capitalized. Routine maintenance and repair items are charged to current operations. The original cost and accumulated depreciation of asset dispositions are removed from the accounts and any gain or loss is reflected in the statement of operations in the period of disposition. The Company reviews long-lived assets to assess recoverability using undiscounted cash flows. When certain events or changes in operating or economic conditions occur, an impairment assessment is performed on the recoverability of the carrying value of these assets. If the asset is determined to be impaired, the loss is measured based on the difference between the asset's fair value and its carrying value. If quoted market prices are not available, Cen estimates fair value using a discounted value of estimated future cash flows.
Intangible Assets, Finite-Lived, Policy [Policy Text Block]	Intangible Assets Intangible assets include a patent with a definite useful life and is amortized over 16 years. Management annually reviews this asset for impairment whenever events or changes in circumstances indicate the related carrying amount may not be recoverable.
Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block]	Impairment of Long-Lived Assets A long-lived asset (asset group) shall be tested for recoverability whenever events or changes in circumstances indicate that its carrying amount may not be recoverable. There were no impairment charges taken during the year ended December 31, 2017. See Note 6 for impairment charges taken in 2016 related to leasehold improvements.
Revenue Recognition, Policy [Policy Text Block]	Revenue Recognition Once the Company commences operations, it is expected that revenues will generally recognized at the time finished products are shipped or upon the performance of services. Revenues from service contracts will be recognized ratably over the term of the contract. The Company may have certain sales programs which, under specified conditions, may enable customers to return product. The Company will establish liabilities for estimated returns and allowances at the time of shipment. In addition, accruals for customer discounts and rebates will be provided when sales are recognized. The Company generated no revenue in 2017 or 2016.
Research and Development Expense, Policy [Policy Text Block]	Research and Development Expenditures CEN expenses all research and development expenses when incurred. Research and development expenses were not material in 2017 or 2016.
Income Tax, Policy [Policy Text Block]	Income Taxes Deferred income tax assets and liabilities are computed annually for differences between the financial statement and income tax bases of assets and liabilities that will result in taxable or deductible amounts in the future, based on enacted tax laws and rates applicable to the periods in which the differences are expected to affect taxable income. Valuation allowances are established, when necessary, to reduce deferred tax assets to the amount expected to be realized. Income tax expense is the tax payable or refundable for the year plus or minus the change during the year in deferred tax assets and liabilities.
Foreign Currency Transactions and Translations Policy [Policy Text Block]	Foreign Currency Transactions and Balances Foreign currency transactions in Canadian dollars are converted in the Company’s consolidated financial statements to U.S. dollars at the exchange rate prevailing at the date of the transaction. Monetary assets and liabilities denominated in foreign currencies are subsequently remeasured at the balance sheet date exchange rate into the functional currency. All gains and losses resulting from the settlement of foreign currency transactions and from the re-measurement of monetary assets and liabilities denominated in foreign currencies are included in the consolidated statements of operations.
Compensation Related Costs, Policy [Policy Text Block]	Stock-Based Compensation The fair value of restricted stock awards granted to employees is determined on the grant date and compensation is recognized ratably over the requisite service period equal to the fair value of the award. The Company accounts for restricted stock awards issued to non-employees in accordance with authoritative guidance (ASC Topic 505 - 50 Equity-based Payments to Non-Employees). All transactions in which goods or services are received in exchange for equity instruments are accounted for based on the fair value of the consideration received or the fair value of the equity instrument issued, whichever is more reliably measurable. The measurement date of the fair value of the equity instrument is the earlier of (i) the date of grant if nonforfeitable and fully vested, or (ii) the date the non-employee’s performance is completed and there is no further associated performance commitment. The fair value of unvested equity instruments granted to non-employees is re-measured at each reporting date, and the resulting change in value, if any, is recognized as expense during the period the related services are rendered. The expense is recognized in the same manner as if we had paid cash for the services provided by the non-employees.
Earnings Per Share, Policy [Policy Text Block]	Loss per Share Net loss per common share is computed pursuant to ASC 260 - 10 - 45. Basic loss per share is computed based on the weighted average number of common shares outstanding during the period. Diluted net loss per share is calculated by dividing net loss by the diluted weighted average common shares outstanding, which includes the effect of potentially dilutive securities. During periods when there is a net loss, all potentially dilutive shares are anti-dilutive and are excluded from the calculation of net loss per share. Diluted earnings per share is similarly computed except that the denominator includes the effect, using the treasury stock method, of unvested restricted stock and convertible notes, if including such potential shares of common stock is dilutive. For 2017 and 2016, the common stock equivalents of the convertible note agreements were not included in diluted earnings per share computations because their effect was antidilutive.
Reclassification, Policy [Policy Text Block]	Reclassification As a result of certain related party relationships formed in 2017, certain amounts in the 2016 consolidated financial statements, including accrued interest, convertible notes payable, and the related interest expense, have been reclassified to conform with the 2017 presentation.
New Accounting Pronouncements, Policy [Policy Text Block]	Adoption of New Accounting Standards FASB Accounting Standards Update (“ASU”) 2016 - 09, Stock Compensation - Improvements to Employee Share-Based Payment Accounting On January 1, 2017, we adopted the amendments to accounting standards codification (“ASC”) 718 which simplify accounting for share-based payment transactions. Prior to this amendment, excess tax benefits resulting from the difference between the deduction for tax purposes and the compensation costs recognized for financial reporting were not recognized until the deduction reduced taxes payable. Under the new method, we will recognize excess tax benefits in the current accounting period. In addition, prior to January 1, 2017, the employee share-based compensation expense was recorded net of estimated forfeiture rates and subsequently adjusted at the vesting date, as appropriate. As part of the amendment, we have elected to recognize the actual forfeitures by reducing the employee share-based compensation expense in the same period as the forfeitures occur. Accounting Standards Issued But Not Yet Adopted In February 2016, the FASB issued an ASU which requires lessees to recognize lease assets and lease liabilities arising from operating leases on the balance sheet. This ASU is effective for annual and interim reporting periods beginning after December 15, 2018 using a modified retrospective approach, with early adoption permitted. The Company is currently evaluating the standard to determine the impact of its adoption on its consolidated financial statements. The Company will record a right-of-use asset and a lease liability upon adoption. In January 2016, the FASB issued ASU No. 2016 - 01, Recognition and Measurement of Financial Assets and Financial Liabilities, to mainly change the accounting for investments in equity securities and financial liabilities carried at fair value as well as to modify the presentation and disclosure requirements for financial instruments. The ASU is effective for interim and annual periods beginning after December 15, 2017, with early adoption permitted. Adoption of the ASU is retrospective with a cumulative adjustment to retained earnings or accumulated deficit as of the adoption date. The Company believes that the adoption of this pronouncement will not have an impact on the Company’s financial statements. In May 2014, the FASB issued an ASU which supersedes the most current revenue recognition requirements. The new revenue recognition standard requires entities to recognize revenue in a way that depicts the transfer of goods or services to customers in an amount that reflects the consideration which the entity expects to be entitled to in exchange for those goods or services. This guidance is effective for annual and interim reporting periods beginning after December 15, 2017. The Company is still in its startup phase and is not generating revenues at this time; therefore, this standard will have no impact on its consolidated financial statements until such time as revenues are generated. When revenues are generated, the Company will follow the provisions of the new standard.