| SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) | 9 Months Ended |
| Dec. 31, 2017 |
| Accounting Policies [Abstract] | |
| Basis of Accounting, Policy [Policy Text Block] | Basis of presentation The accompanying unaudited condensed consolidated financial statements of the Company have been prepared and presented in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) and pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”). Certain information and footnote disclosures, which are normally included in annual financial statements prepared in accordance with U.S. GAAP, have been omitted pursuant to those rules and regulations. The unaudited interim condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto for the fiscal year ended March 31, 2017, included with the Company’s prospectus dated October 27, 2017 (File No. 333-218991). In the opinion of management, all adjustments (which include normal recurring adjustments) necessary to present a fair presentation of the Company's financial position as of December 31, 2017, its results of operations and its cash flows for the nine months ended December 31, 2017 and 2016, as applicable, have been made. The unaudited interim results of operations are not necessarily indicative of the operating results for the full fiscal year or any future periods. |
| Consolidation, Policy [Policy Text Block] | Principles of Consolidation The unaudited condensed consolidated financial statements include the financial statements of Jerash Holdings, its subsidiaries and VIEs. All significant intercompany balances and transactions have been eliminated in consolidation. In accordance with accounting standards regarding consolidation of variable interest entities, VIEs are generally entities that lack sufficient equity to finance their activities without additional financial support from other parties or whose equity holders lack adequate decision-making ability. All VIEs with which the Company is involved must be evaluated to determine the primary beneficiary of the risks and rewards of the VIE. The primary beneficiary is required to consolidate the VIE for financial reporting purposes. As described in Note 1, management of the Company has concluded that Victory Apparel is a VIE, and that Jerash Garments is considered the primary beneficiary because Mr. Choi, our president, director and significant shareholder, absorbs the risks and rewards of Victory Apparel; therefore, we consolidate Victory Apparel for financial reporting purposes. Noncontrolling interests result from the consolidation of Victory Apparel, which is 100 December 31, 2017 March 31, 2017 Current assets $ 2,069 $ 2,096 Intercompany receivables* 311,393 321,317 Total assets 313,462 323,413 Third party current liabilities - (6,815) Total liabilities - (6,815) Net assets $ 313,462 $ 316,598 * Receivables from Jerash Garments are eliminated upon consolidation. Victory Apparel did not generate any income but incurred certain expenses for each of the nine-month periods ended December 31, 2017 and 2016. The loss was $ 26 8,929 2,845 32,016 |
| Use of Estimates, Policy [Policy Text Block] | Use of Estimates The preparation of the unaudited condensed consolidated financial statements, in conformity with U.S. GAAP, requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the consolidated financial statements, and the reported amounts of revenues and expenses during the reporting period. The Company’s most significant estimates include allowance for doubtful accounts, valuation of inventory reserve and useful lives of buildings and other property. Actual results could differ from these estimates. |
| Cash and Cash Equivalents, Policy [Policy Text Block] | Cash The Company considers all highly liquid investment instruments with an original maturity of three months or less from the original date of purchase to be cash equivalents. As of December 31, 2017 and March 31, 2017 |
| Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] | Restricted Cash Restricted cash consists of cash used as security deposits to obtain credit facilities of the Company from a bank and to secure custom clearance under the requirements of local regulations. The Company is required to keep certain amounts on deposit that are subject to withdrawal restrictions. These security deposits at the bank are refundable only when the bank facilities are terminated. The restricted cash is classified as a non-current asset since the Company has no intention to terminate these bank facilities within one year. |
| Trade and Other Accounts Receivable, Policy [Policy Text Block] | Accounts Receivable Accounts receivable are recognized and carried at the original invoiced amount less an estimated allowance for uncollectible accounts. The Company usually grants credit to customers with good credit standing for a maximum of 90 days and determines the adequacy of reserves for doubtful accounts based on individual account analysis and historical collection trends. The Company establishes a provision for doubtful receivables when there is objective evidence that the Company may not be able to collect amounts due. The allowance is based on management's best estimates of specific losses on individual exposures, as well as a provision on historical trends of collections. The provision is recorded against accounts receivables balances with a corresponding charge recorded in the consolidated statements of income and comprehensive income. Actual amounts received may differ from management's estimate of credit worthiness and the economic environment. Delinquent account balances are written off against the allowance for doubtful accounts after management has determined that the likelihood of collection is not probable. No allowance was considered necessary as of December 31, 2017 and March 31, 2017. |
| Inventory, Policy [Policy Text Block] | Inventories Inventories are stated at the lower of cost or net realizable value. Inventories include cost of raw materials, freight, direct labor and related production overhead. The cost of inventories is determined using the First in, First-out (“FIFO”) method. The Company periodically reviews its inventories for excess or slow-moving items and makes provisions as necessary to properly reflect inventory value. |
| Property, Plant and Equipment, Policy [Policy Text Block] | Property, Plant and Equipment Property, plant and equipment are recorded at cost, reduced by accumulated depreciation and amortization. Depreciation and amortization expense related to property, plant and equipment is computed using the straight-line method based on estimated useful lives of the assets, or in the case of leasehold improvements, the shorter of the initial lease term or the estimated useful life of the improvements. The useful life and depreciation method are reviewed periodically to ensure that the method and period of depreciation are consistent with the expected pattern of economic benefits from items of property, plant and equipment. Useful life Land Infinite Property and buildings 15 years Equipment and machinery 3-5 years Office and electronic equipment 3-5 years Automobiles 5 years Leasehold improvements Lesser of useful life and lease term Expenditures for maintenance and repairs, which do not materially extend the useful lives of the assets, are charged to expense as incurred. Expenditures for major renewals and betterments which substantially extend the useful life of assets are capitalized. The cost and related accumulated depreciation or amortization of assets retired or sold are removed from the respective accounts, and any gain or loss is recognized in the unaudited condensed consolidated statements of income and comprehensive income. |
| Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] | Impairment of Long-Lived Assets The Company assesses its long-lived assets, including property and equipment, for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset group may not be recoverable. Factors which may indicate potential impairment include a significant underperformance relative to the historical or projected future operating results or a significant negative industry or economic trend. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to the future undiscounted cash flows expected to be generated by that asset. If impairment is indicated, a loss is recognized for any excess of the carrying value over the estimated fair value of the asset. The fair value is estimated based on the discounted future cash flows or comparable market values, if available. The Company did not record any impairment loss during the three and nine months ended December 31, 2017 and 2016. |
| Revenue Recognition, Policy [Policy Text Block] | Revenue Recognition Revenue from product sales is recognized, net of estimated provisions for sales allowances and returns, when the merchandise is shipped and title is transferred. Revenue is recognized when all four of the following criteria are met: (i) persuasive evidence that an arrangement exists (sales agreements and customer purchase orders are used to determine the existence of an arrangement); (ii) delivery of goods has occurred and risks and benefits of ownership have been transferred, which is when the goods are received by the customer at its designated location in accordance with the sales terms; (iii) the sales price is both fixed and determinable; and (iv) collectability is reasonably assured. Most of the Company’s products are custom-made for large brand-name retailers. Historically, sales returns have been minimal. |
| Shipping and Handling Cost, Policy [Policy Text Block] | Shipping and Handling Proceeds collected from customers for shipping and handling costs are included in revenues. Shipping and handling costs are expensed as incurred and are included in operating expenses, as a part of selling, general and administrative expenses. Total shipping and handling expenses were $ 111,205 117,387 508,204 420,820 |
| Income Tax, Policy [Policy Text Block] | Income Taxes The Company is subject to income taxes on an entity basis on income arising in or derived from the tax jurisdiction in which each entity is domiciled. Jerash Holdings was incorporated in the State of Delaware and is subject to Federal income tax in the United States of America. GTI was incorporated in the BVI and is not subject to income taxes under the current laws of BVI. Treasure Success was registered in Hong Kong and has no operating profit for current tax liabilities. Jerash Garments, Jerash Embroidery, Chinese Garments and Victory Apparel are subject to the regulations of the Income Tax Department in Jordan. The corporate income tax rate is 14 December 31, 2018 342,254 341,349 0.04 0.04 The exempted income tax expense for Jerash Garments totaled $ 1,675,086 1,118,768 0.17 0.13 Local sales of Jerash Garments are subject to income tax at a fixed rate of 14 The Company accounts for income taxes in accordance with ASC 740, “Income Taxes,” which requires the Company to use the asset and liability method of accounting for income taxes. Under the asset and liability method, deferred income taxes are recognized for the tax consequences of temporary differences by applying enacted statutory tax rates applicable to future years to differences between financial statement carrying amounts and the tax bases of existing assets and liabilities and operating loss and tax credit carry forwards. Under this accounting standard, the effect on deferred income taxes of a change in tax rates is recognized in income in the period that includes the enactment date. A valuation allowance is recognized if it is more likely than not that some portion, or all of, a deferred tax asset will not be realized. Deferred income taxes were immaterial, and accordingly, no deferred tax assets or liabilities were recognized as of December 31, 2017 and March 31, 2017. ASC 740 clarifies the accounting for uncertainty in tax positions. This interpretation requires that an entity recognize in its financial statements the impact of a tax position if that position is more likely than not to be sustained upon examination, based on the technical merits of the position. Recognized income tax positions are measured at the largest amount that is greater than 50% likely of being realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. The Company has elected to classify interest and penalties related to unrecognized tax benefits, if and when required, as part of income tax expense in the consolidated statements of income and comprehensive income. Jordan income tax returns prior to 2013 are not subject to examination by any applicable tax authorities. No significant uncertainty in tax positions relating to income taxes have been incurred during the periods ended December 31, 2017 and 2016. |
| Foreign Currency Transactions and Translations Policy [Policy Text Block] | Foreign Currency Translation The reporting currency of the Company is the U.S. dollar and the Company uses the JOD as its functional currency, except for Treasure Success, which uses the Hong Kong Dollar (“HKD”) as its functional currency. The assets and liabilities of the Company have been translated into U.S. dollars using the exchange rates in effect at the balance sheet date, equity accounts have been translated into U.S. dollars at historical rates, and revenue and expenses have been translated into U.S. dollars using average exchange rates in effect during the reporting period. Cash flows are also translated into U.S. dollars at average translation rates for the periods; therefore, amounts related to assets and liabilities reported on the consolidated statements of cash flows will not necessarily agree with changes in the corresponding balances on the consolidated balance sheets. Translation adjustments arising from the use of different exchange rates from period to period are included as a separate component of accumulated other comprehensive income (loss). Transaction gains and losses that arise from exchange rate fluctuations on transactions denominated in a currency other than the functional currency are included in the results of operations as incurred. The value of the JOD against the U.S. dollar and other currencies may fluctuate and is affected by, among other things, changes in Jordan’s political and economic conditions. Any significant revaluation of the JOD may materially affect the Company’s financial condition in terms of reporting in U.S. dollars. March 31, 2017 December 31, 2016 Period-end spot rate US$1=JOD 0.7097 US$1=JOD 0.7090 US$1=JOD 0.7106 US$1=HKD 0.1282 US$1=HKD 0.1287 US$1=HKD 0.1289 Average rate US$1=JOD 0.7093 US$1=JOD 0.7086 US$1=JOD 0.7109 US$1=HKD 0.1280 US$1=HKD 0.1289 |
| Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] | Stock-Based Compensation The Company measures compensation expense for stock-based awards to non-employee contractors and directors based upon the awards’ initial grant date fair value. The estimated grant date fair value of the award is recognized as expense over the requisite service period using the straight-line method. The fair value of awards to non-employees is then marked-to-market each reporting period until vesting criteria are satisfied. The Company estimates the fair value of stock warrants using the Black-Scholes model. This model is affected by the Company's stock price on the date of the grant as well as assumptions regarding a number of highly complex and subjective variables. These variables include the expected term of the warrant, the expected risk-free rates of return, the expected volatility of the Company's common stock, and the expected dividend yield, each of which is more fully described below. The assumptions for the expected term and the expected volatility are the two assumptions that significantly affect the grant date fair value. ⋅ Expected Term: the expected term of a warrant is the period of time that the warrant is expected to be outstanding. ⋅ Risk-free Interest Rate: the Company bases the risk-free interest rate used in the Black-Scholes model on the implied yield at the grant date of the U.S. Treasury zero coupon issue with an equivalent term to the stock-based award being valued. Where the expected term of a stock-based award does not correspond with the term for which a zero coupon interest rate is quoted, the Company uses the nearest interest rate from the available maturities. ⋅ Expected Stock Price Volatility: the Company utilizes comparable public company volatility over the same period of time as the life of the warrant. ⋅ Dividend Yield: because the Company does not expect to pay a dividend in the foreseeable future, a 0 |
| Earnings Per Share, Policy [Policy Text Block] | Earnings per Share The Company computes earnings per share (“EPS”) in accordance with ASC 260, “Earnings per Share” (“ASC 260”). ASC 260 requires companies with complex capital structures to present basic and diluted EPS. Basic EPS is measured as net income divided by the weighted average common shares outstanding for the period. Diluted EPS is similar to basic EPS but presents the dilutive effect of potential common shares (e.g., convertible securities, options and warrants) on a per share basis as if the convertible securities had been converted at the beginning of the period presented, or the issuance date, if later. |
| Comprehensive Income, Policy [Policy Text Block] | Comprehensive Income Comprehensive income consists of two components, net income and other comprehensive income (loss). The foreign currency translation gain or loss resulting from the translation of the financial statements expressed in JOD or HKD to U.S. dollars is reported in other comprehensive income (loss) in the consolidated statements of income and comprehensive income. |
| Fair Value of Financial Instruments, Policy [Policy Text Block] | Fair Value of Financial Instruments ASC 825-10 requires certain disclosures regarding the fair value of financial instruments. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. A three-level fair value hierarchy prioritizes the inputs used to measure fair value. The hierarchy requires entities to maximize the use of observable inputs and minimize the use of unobservable inputs. The three levels of inputs used to measure fair value are as follows: ⋅ Level 1 - Quoted prices in active markets for identical assets and liabilities. ⋅ Level 2 - Quoted prices in active markets for similar assets and liabilities, or other inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument. ⋅ Level 3 - Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets and liabilities. This includes certain pricing models, discounted cash flow methodologies and similar techniques that use significant unobservable inputs. The Company considered the recorded value of its financial assets and liabilities, which consist primarily of cash, including restricted cash, accounts receivable, other receivables, due from related parties, due from shareholders, accounts payable, accrued expenses, other payables and short-term loans, to approximate the fair value of the respective assets and liabilities at December 31, 2017 and March 31, 2017 based upon the short-term nature of these assets and liabilities. |
| Concentration Risk, Credit Risk, Policy [Policy Text Block] | Concentrations and Credit Risk Credit risk Financial instruments that potentially subject the Company to significant concentrations of credit risk consist primarily of cash. As of December 31, 2017 and March 31, 2017, $ 5,355,745 3,404,508 8,988,963 249,865 746 0 250,000 Accounts receivable are typically unsecured and derived from revenue earned from customers and therefore, are exposed to credit risk. The risk is mitigated by the Company's assessment of its customers' creditworthiness and its ongoing monitoring of outstanding balances. Customer and vendor concentration risk Prior to August 2016, substantially all of the Company’s sales were made to its customers through its affiliates (see Note 7) that are located primarily in the United States (see Note 9). Thereafter, the Company began selling directly to its customers. The Company’s operating results could be adversely affected by U.S. government policy on exporting business, foreign exchange rate fluctuations, and change of local market conditions. The Company has a concentration of its revenues and purchases with specific customers and suppliers. For the three months ended December 31, 2017, two customers accounted for 72 12 81 8 80 10 81 77 11 94 For the three months ended December 31, 2017, the Company purchased approximately 62 12 87 83 ONSET For the nine months ended December 31, 2016, the Company purchased 44 9 45 96 A loss of any of these customers or suppliers could adversely affect the operating results or cash flows of the Company. |
| Risks and Uncertainties [Policy Text Block] | Risks and Uncertainties The principal operations of the Company are located in Jordan. Accordingly, the Company’s business, financial condition, and results of operations may be influenced by the political, economic, and legal environments in Jordan, as well as by the general state of the Jordanian economy. The Company’s operations in Jordan are subject to special considerations and significant risks that are not typically associated with companies in North America. These include risks associated with, among others, the political, economic and legal environment and foreign currency exchange. The Company’s results may be adversely affected by changes in the political, regulatory and social conditions in Jordan. Although the Company has not experienced losses from these situations and believes that it is in compliance with existing laws and regulations, including its organization and structure disclosed in Note 1, this may not be indicative of future results. |
| New Accounting Pronouncements, Policy [Policy Text Block] | RECENT ACCOUNTING PRONOUNCEMENTS New Accounting Pronouncements Recently Adopted In July 2015, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2015-11, “Simplifying the Measurement of Inventory.” ASU No. 2015-11 changes the measurement principle for inventory from the lower of cost or market to the lower of cost and net realizable value. Net realizable value is defined as the estimated selling prices in the ordinary course of business; less reasonably predictable costs of completion, disposal and transportation. For public business entities, the amendments in this ASU are effective for fiscal years beginning after December 15, 2016, including interim reporting periods within those fiscal years. The Company adopted this guidance in the first quarter of its fiscal year ended March 31, 2018 using a prospective application. The adoption of this guidance did not have a material impact on the Company’s unaudited condensed consolidated financial statements and related disclosures. In March 2016, the FASB issued ASU 2016-09, “CompensationStock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting.” This update addresses several aspects of the accounting for share-based compensation transactions including: (a) income tax consequences when awards vest or are settled, (b) classification of awards as either equity or liabilities, (c) a policy election to account for forfeitures as they occur rather than on an estimated basis and (d) classification of excess tax impacts on the statement of cash flows. The Company adopted this guidance in the first quarter of its fiscal year ended March 31, 2018, which did not have a material impact to the unaudited condensed consolidated financial statements and related disclosures. The amendments requiring recognition of excess tax benefits and tax deficiencies in the income statement will be applied prospectively. The Company does not expect the impact to be material to the unaudited condensed consolidated results of operations; however, such determination is subject to change based on facts and circumstances at the time when awards vest or settle. New Accounting Pronouncements Not Yet Adopted In May 2014, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606)” (“ASU 2014-09”). ASU 2014-09 requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. ASU 2014-09 will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective and permits the use of either the retrospective or cumulative effect transition method. The guidance also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts. In August 2015, the FASB issued ASU No. 2015-14, “Deferral of the Effective Date” (“ASU 2015-14”), which defers the effective date for ASU 2014-09 by one year. The guidance in ASU 2014-09 will be effective for the Company for fiscal years beginning after December 15, 2017, including interim reporting periods within those fiscal years. In March 2016, the FASB issued ASU No. 2016-08, “Principal versus Agent Considerations (Reporting Revenue versus Net)” (“ASU 2016-08”), which clarifies the implementation guidance on principal versus agent considerations in the new revenue recognition standard. In April 2016, the FASB issued ASU No. 2016-10, “Identifying Performance Obligations and Licensing” (“ASU 2016-10”), which reduces the complexity when applying the guidance for identifying performance obligations and improves the operability and understandability of the license implementation guidance. In May 2016, the FASB issued ASU No. 2016-12 “Narrow-Scope Improvements and Practical Expedients” (“ASU 2016-12”), which amends the guidance on transition, collectability, noncash consideration and the presentation of sales and other similar taxes. Preliminarily, the Company plans to adopt Topic 606 using the retrospective transition method, and is continuing to evaluate the impact its pending adoption of Topic 606 will have on its consolidated financial statements. The Company believes that its current revenue recognition policies are generally consistent with the new revenue recognition standards set forth in ASU 2014-09. Potential adjustments to input measures are not expected to be pervasive to the majority of the Company’s contracts. While no significant impact is expected upon adoption of the new guidance, the Company will not be able to make that determination until the time of adoption based upon outstanding contracts at that time. In February 2016, the FASB issued ASU No. 2016-02, "Leases” to increase transparency and comparability among organizations by recognizing leased assets on the balance sheet with a corresponding liability and disclosing key information about leasing arrangements. For public business entities, the amendments in this ASU are effective for fiscal years beginning after December 15, 2018, including interim reporting periods within those fiscal years. For all other entities, the amendments in this ASU are effective for fiscal years beginning after December 15, 2019, and interim reporting periods within fiscal years beginning after December 15, 2020. Early adoption is permitted. The Company is evaluating the impact of the adoption of this revised guidance on its unaudited condensed consolidated financial statements and related disclosures. In May 2017, the FASB issued ASU 2017-09, “Scope of Modification Accounting,” which amends the scope of modification accounting for share-based payment arrangements, provides guidance on the types of changes to the terms or conditions of share-based payment awards to which an entity would be required to apply modification accounting under ASC 718. For all entities, the ASU is effective for annual reporting periods, including interim periods within those annual reporting periods, beginning after December 15, 2017. Early adoption is permitted, including adoption in any interim period. The Company does not expect that adoption of this guidance will have a material impact on its unaudited condensed consolidated financial statements and related disclosures. |
