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Significant Accounting Policies (Policies) | 12 Months Ended
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Apr. 30, 2016
Accounting Policies [Abstract] |
Use of Estimates, Policy [Policy Text Block] | Use of Estimates: The preparation of financial statements in conformity with U.S. generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions that affect certain reported amounts and disclosures. Accordingly, actual results may differ from those estimates.
Consolidation, Policy [Policy Text Block] | Principles of Consolidation: The Company follows the guidance in the Financial Accounting Standards Board's ("FASB") Topic 810 “Consolidation” to determine if it should consolidate its investment in a variable interest entity ("VIE"). A VIE is a legal entity in which either (i) equity investors do not have sufficient equity investment at risk to enable the entity to finance its activities independently or (ii) the equity holders at risk lack the obligation to absorb losses, the right to receive residual returns or the right to make decisions about the entity’s activities that most significantly affect the entity's economic performance. A holder of a variable interest in a VIE is required to consolidate the entity if it is determined that it has a controlling financial interest in the VIE and is therefore the primary beneficiary. The determination of a controlling financial interest in a VIE is based on a qualitative assessment to identify the variable interest holder, if any, that has (i) the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance, and (ii) either the obligation to absorb losses of the entity or the right to receive benefits from the entity that could potentially be significant to the VIE. The accounting guidance requires the Company to perform an ongoing assessment of whether the Company is the primary beneficiary of a VIE and the Company has determined it is not the primary beneficiary of a VIE (see Note 5). In accordance with FASB's Topic 810, the assets, liabilities, and results of operations of subsidiaries in which the Company has a controlling interest have been consolidated. All significant intercompany accounts and transactions have been eliminated in consolidation. On December 23, 2010, the Company completed the Restructuring Transaction and deconsolidated the related affiliates in accordance with FASB's Topic 810. As part of the Restructuring Transaction, the Company received a significant non-voting revenues interest (excluding distribution revenues) and a significant non-voting profits interest in the new entity, EULAV Asset Management, a Delaware statutory trust (“EAM” or “EAM Trust”). The Company relied on the guidance in FASB's ASC Topics 323 and 810 in its determination not to consolidate its investment in EAM and to account for such investment under the equity method of accounting. The Company reports the amount it receives for its non-voting revenues and non-voting profits interests as a separate line item below operating income in the Consolidated Statements of Income.
Revenue Recognition, Policy [Policy Text Block] | Revenue Recognition: Depending upon the product, subscription fulfillment for Value Line periodicals and related publications is available in print or digitally, via internet access. The length of a subscription varies by product and offer received by the subscriber. Generally, subscriptions are offered as annual subscriptions. Subscription revenues, net of discounts, are recognized ratably on a straight line basis when the product is served to the client over the life of the subscription. Accordingly, the amount of subscription fees to be earned by fulfilling subscriptions after the date of the balance sheets are shown as unearned revenue within current and long term liabilities. Copyright data revenues are derived from providing certain Value Line trademarks and the Value Line Proprietary Ranking System information to third parties under written agreements for use in selecting securities for third party marketed products, including unit investment trusts, annuities and exchange traded funds ("ETFs"). The Company earns asset-based copyright data fees as specified in the individual agreements. Revenue is recognized monthly over the term of the agreement and, because it is asset-based, will fluctuate as the market value of the underlying portfolio increases or decreases in value. EAM earns investment management fees from the Value Line Funds. The management fees and average daily net assets for the Value Line Funds are calculated by State Street Bank, which serves as the fund accountant, fund administrator, and custodian of the Value Line Funds. The Value Line Funds are open-end management companies registered under the Investment Company Act of 1940 (the "1940 Act"). Shareholder transactions for the Value Line Funds are processed each business day by the third party transfer agent of the Funds. Shares can be redeemed without advance notice upon request of the shareowners each day that the New York Stock Exchange is open. Prior to December 1, 2010, EAM LLC, in addition to managing the Value Line Funds, separately managed accounts of institutions and high net worth individuals for which it was paid advisory fees. EAM had no separately managed accounts as of April 30, 2016 or April 30, 2015. Assets within the separately managed accounts were held at third party custodians and were subject to the terms of the applicable advisory agreements and did not have any advance notice requirement for withdrawals.
Equity Method Investments, Policy [Policy Text Block] | Investment in Unconsolidated Entities: The Company accounts for its investment in its unconsolidated entity, EAM, using the equity method of accounting in accordance with FASB’s ASC 323. The equity method is an appropriate means of recognizing increases or decreases measured by GAAP in the economic resources underlying the investments. Under the equity method, an investor recognizes its share of the earnings or losses of an investee in the periods for which they are reported by the investee in its financial statements rather than in the period in which an investee declares a dividend or distribution. An investor adjusts the carrying amount of an investment for its share of the earnings or losses recognized by the investee. The Company’s “interests” in EAM, the investment adviser to and the sole member of the distributor of the Value Line Funds, consist of a "non-voting revenues interest" and a "non-voting profits interest" in EAM as defined in the EAM Trust Agreement. The non-voting revenues interest entitles the Company to receive a range of 41% to 55%, based on the amount of EAM’s adjusted gross revenues, excluding EULAV Securities' distribution revenues (“Revenues Interest”). The non-voting profits interest entitles the Company to receive 50% of EAM's profits, subject to certain limited adjustments as defined in the EAM Trust Agreement (“Profits Interest”). The Revenues Interest and at least 90% of the Profits Interest are to be distributed each quarter to all interest holders of EAM, including Value Line. Subsequent to the Restructuring Date, the Company's Revenues Interest in EAM excludes participation in the service and distribution fees of EAM's subsidiary EULAV Securities. The Company reflects its non-voting revenues and non-voting profits interests in EAM as non-operating income under the equity method of accounting subsequent to the Restructuring Transaction. Although the Company does not have control over the operating and financial policies of EAM, pursuant to the EAM Trust Agreement, the Company has a contractual right to receive its share of EAM's revenues and profits.
Fair Value Measurement, Policy [Policy Text Block] | Valuation of Securities: The Company's securities classified as cash equivalents and available-for-sale consist of shares of money market funds that invest primarily in short-term U.S. Government securities and investments in equities including ETFs and are valued in accordance with the requirements of the Fair Value Measurements Topic of the FASB's ASC 820. The securities classified as available-for-sale reflected in the Consolidated Condensed Balance Sheets are valued at market and unrealized gains and losses, net of applicable taxes, are reported as a separate component of shareholders' equity. Realized gains and losses on sales of the securities classified as available-for-sale are recorded in earnings as of the trade date and are determined on the identified cost method. The Company classifies its securities available-for-sale as current assets to properly reflect its liquidity and to recognize the fact that it has liquid assets available-for-sale should the need arise. Market valuations of securities listed on a securities exchange and ETF shares are based on the closing sales prices on the last business day of each month. The market value of the Company's fixed maturity U.S. Government debt securities is determined utilizing publicly quoted market prices. Cash equivalents consist of investments in money market funds that invest primarily in U.S. Government securities valued in accordance with rule 2a-7 under the 1940 Act. The Fair Value Measurements Topic of FASB's ASC defines fair value as the price that the Company would receive upon selling an investment in a timely transaction to an independent buyer in the principal or most advantageous market for the investment. The Fair Value Measurements Topic established a three-tier hierarchy to maximize the use of observable market data and minimize the use of unobservable inputs and to establish classification of fair value measurements for disclosure purposes. Inputs refer broadly to the information that market participants would use in pricing the asset or liability, including assumptions about risk. Examples of risks include those inherent in a particular valuation technique used to measure fair value such as the risk inherent in the inputs to the valuation technique. Inputs are classified as observable or unobservable. Observable inputs are inputs that reflect the assumptions market participants would use in pricing the asset or liability developed based on market data obtained from sources independent of the reporting entity. Unobservable inputs are inputs that reflect the reporting entity’s own assumptions about the factors market participants would use in pricing the asset or liability developed based on the best information available in the circumstances. The three-tier hierarchy of inputs is summarized in the three broad levels listed below.
Level 1 – quoted prices in active markets for identical investments
Level 2 – other significant observable inputs (including quoted prices for similar investments, interest rates, prepayment speeds, credit risk, etc.)
Level 3 – significant unobservable inputs (including the Company’s own assumptions in determining the fair value of investments)
The following summarizes the levels of fair value measurements of the Company’s investments:
|  | As of April 30, 2016 |
($ in thousands) |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Cash equivalents |  | $ | 12,037 |  |  | $ | - |  |  | $ | - |  |  | $ | 12,037 |
Securities available-for-sale |  |  | 3,637 |  |  |  | - |  |  |  | - |  |  |  | 3,637 |
|  | $ | 15,674 |  |  | $ | - |  |  | $ | - |  |  | $ | 15,674 |
|  | As of April 30, 2015 |
($ in thousands) |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Cash equivalents |  | $ | 5,272 |  |  | $ | - |  |  | $ | - |  |  | $ | 5,272 |
Securities available-for-sale |  |  | 9,632 |  |  |  | - |  |  |  | - |  |  |  | 9,632 |
|  | $ | 14,904 |  |  | $ | - |  |  | $ | - |  |  | $ | 14,904 |
The Company had no other financial instruments such as futures, forwards and swap contracts. For the periods ended April 30, 2016 and April 30, 2015, there were no Level 2 nor Level 3 investments. The Company does not have any liabilities subject to fair value measurement.
Advertising Costs, Policy [Policy Text Block] | Advertising expenses: The Company expenses advertising costs as incurred.
Income Tax, Policy [Policy Text Block] | Income Taxes: The Company computes its income tax provision in accordance with the Income Tax Topic of the FASB's ASC. Deferred tax liabilities and assets are recognized for the expected future tax consequences of events that have been reflected in the Consolidated Financial Statements. Deferred tax liabilities and assets are determined based on the differences between the book values and the tax bases of particular assets and liabilities, using tax rates currently in effect for the years in which the differences are expected to reverse. The Income Tax Topic of the FASB's ASC establishes for all entities, a minimum threshold for financial statement recognition of the benefit of positions taken in filing tax returns (including whether an entity is taxable in a particular jurisdiction), and requires certain expanded tax disclosures. As of April 30, 2016, management has reviewed the tax positions for the years still subject to tax audit under the statute of limitations, evaluated the implications, and determined that there is no material impact to the Company's financial statements.
Earnings Per Share, Policy [Policy Text Block] | Earnings per share: Earnings per share are based on the weighted average number of shares of common stock and common stock equivalents outstanding during each period. Any shares that are reacquired during the period are weighted for the portion of the period that they are outstanding. The Company does not have any potentially dilutive common shares from outstanding stock options, warrants, restricted stock, or restricted stock units.
Cash and Cash Equivalents, Policy [Policy Text Block] | Cash and Cash Equivalents: For purposes of the Consolidated Statements of Cash Flows, the Company considers all cash held at banks and short term liquid investments with an original maturity of less than three months to be cash and cash equivalents. As of April 30, 2016 and April 30, 2015, cash equivalents included $12,037,000 and $5,272,000, respectively, for amounts invested in money market mutual funds that invest in short term U.S. government securities.
Costs Associated with Exit or Disposal Activities or Restructurings, Policy [Policy Text Block] | Expenses Related to Settlement: The Company expenses all costs associated with a Fair Fund as incurred.

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- Definition Disclosure of accounting policy for advertising costs. For those costs that cannot be capitalized, discloses whether such costs are expensed as incurred or the first period in which the advertising takes place. For direct response advertising costs that are capitalized, describes those assets and the accounting policy used, including a description of the qualifying activity, the types of costs capitalized and the related amortization period. An entity also may disclose its accounting policy for cooperative advertising arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 20 -Section 55 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=68054294&loc=d3e8384-108330 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=68058157&loc=d3e18780-107790 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=68072981&loc=d3e8275-108329 + Details
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- Definition Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 305 -SubTopic 10 -Section 05 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6375392&loc=d3e26790-107797 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4273-108586 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=68058157&loc=d3e18780-107790 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 + Details
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- Definition Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=68058157&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=64809438&loc=d3e5614-111684 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.3A-03) -URI http://asc.fasb.org/extlink&oid=27015204&loc=d3e355100-122828 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.3A-02) -URI http://asc.fasb.org/extlink&oid=27015204&loc=d3e355033-122828 + Details
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- Definition Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3630-109257 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=68058157&loc=d3e18780-107790 + Details
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- Definition Disclosure of accounting policy for the equity method of accounting for investments in common stock or other interests including unconsolidated subsidiaries, corporate joint ventures, noncontrolling interests in real estate ventures, limited partnerships, and limited liability companies. The accounting policy may include information such as: (1) initially recording an investment in the stock of an investee at cost; (2) adjusting the carrying amount of the investment to recognize the investor's share of the earnings or losses of the investee after the date of acquisition; and (3) adjustments to reflect the investor's share of changes in the investee's capital (dividends). This disclosure may also include a detailed description of the policy for determining the amount of equity method losses recognized after an investment has been reduced to zero as a result of previous losses, reasons for not using the equity method when the investor company owns 20 percent or more of the voting stock of the investee's company (including identification of the significant investee), reasons for using the equity method when the ownership percentage is less than 20 percent, and discussion of recognition of equity method losses when an investor's total investment in an investee includes, in addition to an investment in common stock, other investments such as preferred stock and loans to the investee. An entity also may describe how such investments are assessed for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14064-108612 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=68058157&loc=d3e18780-107790 + Details
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- Definition Disclosure of accounting policy for fair value measurements of financial and non-financial assets, liabilities and instruments classified in shareholders' equity. Disclosures include, but are not limited to, how an entity that manages a group of financial assets and liabilities on the basis of its net exposure measures the fair value of those assets and liabilities. + References No definition available. + Details
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- Definition Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=68058157&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32840-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 30 -Section 05 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=65884525&loc=d3e40913-109327 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 954 -SubTopic 740 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6491622&loc=d3e9504-115650 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 17 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32809-109319 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=75116654&loc=d3e32247-109318 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=75116654&loc=d3e32280-109318 + Details
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- Definition Disclosure of accounting policy for revenue recognition. If the entity has different policies for different types of revenue transactions, the policy for each material type of transaction is generally disclosed. If a sales transaction has multiple element arrangements (for example, delivery of multiple products, services or the rights to use assets) the disclosure may indicate the accounting policy for each unit of accounting as well as how units of accounting are determined and valued. The disclosure may encompass important judgment as to appropriateness of principles related to recognition of revenue. The disclosure also may indicate the entity's treatment of any unearned or deferred revenue that arises from the transaction. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=68058157&loc=d3e18823-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 13.B.Q1) -URI http://asc.fasb.org/extlink&oid=65893310&loc=d3e214044-122780 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=68058157&loc=d3e18780-107790 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=68058157&loc=d3e18726-107790 + Details
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