SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND BASIS OF PRESENTATION (Policies)	3 Months Ended
	Dec. 31, 2017
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND BASIS OF PRESENTATION
WHOLESALE SEGMENT AND RETAIL SEGMENT	WHOLESALE SEGMENT Our Wholesale Segment is one of the largest wholesale distributors in the United States serving approximately 4,000 retail outlets including convenience stores, grocery stores, liquor stores, drug stores, and tobacco shops. We currently distribute over 16,000 different consumer products, including cigarettes and tobacco products, candy and other confectionery, beverages, groceries, paper products, health and beauty care products, frozen and chilled products and institutional foodservice products. Convenience stores represent our largest customer category. In November 2017, Convenience Store News ranked us as the seventh (7th) largest convenience store distributor in the United States based on annual sales. Our wholesale business offers retailers the ability to take advantage of manufacturer and Company sponsored sales and marketing programs, merchandising and product category management services, and the use of information systems and data services that are focused on minimizing retailers’ investment in inventory, while seeking to maximize their sales and profits. In addition, our wholesale distributing capabilities provide valuable services to both manufacturers of consumer products and convenience retailers. Manufacturers benefit from our broad retail coverage, inventory management, efficiency in processing small orders, and frequency of deliveries. Convenience retailers benefit from our distribution capabilities by gaining access to a broad product line, optimizing inventory, merchandising expertise, information systems, and accessing trade credit. Our Wholesale Segment operates six distribution centers located in Illinois, Missouri, Nebraska, North Dakota, South Dakota, and Tennessee. These distribution centers, combined with cross dock facilities, include approximately 641,000 square feet of permanent floor space. Our principal suppliers include Altria, RJ Reynolds, ITG Brands, Hershey, Kelloggs, Kraft, and Mars. We also market private label lines of water, candy products, batteries, and other products. We do not maintain any long-term purchase contracts with our suppliers. RETAIL SEGMENT Our Retail Segment is a specialty retailer of natural/organic groceries and dietary supplements which focuses on providing high quality products at affordable prices, with an exceptional level of customer service and nutritional consultation. All of the products carried in our stores must meet strict quality and ingredient guidelines, and include offerings such as gluten-free and antibiotic-free groceries and meat products, as well as products containing no artificial colors, flavors, preservatives, or partially hydrogenated oils. We design our retail sites in an efficient and flexible small-store format, which emphasizes a high energy and shopper-friendly environment. We operate within the natural products retail industry, which is a subset of the U.S. grocery industry. This industry includes conventional, natural, gourmet and specialty food markets, mass and discount retailers, warehouse clubs, health food stores, dietary supplement retailers, drug stores, farmers markets, mail order and online retailers, and multi-level marketers. Our Retail Segment operates sixteen retail health food stores as Chamberlin’s Market & Café and Akin’s Natural Foods Market. These stores carry over 32,000 different national and regionally branded and private label products including high-quality natural, organic, and specialty foods consisting of produce, baked goods, frozen foods, nutritional supplements, personal care items, and general merchandise. Chamberlin’s, which was established in 1935, operates seven stores in and around Orlando, Florida. Akin’s, which was also established in 1935, has a total of nine locations in Arkansas, Missouri, Nebraska, and Oklahoma.
FINANCIAL STATEMENTS	FINANCIAL STATEMENTS The Company’s fiscal year ends on September 30. The results for the interim period included with this Quarterly Report may not be indicative of the results which could be expected for the entire fiscal year. All significant intercompany transactions and balances have been eliminated in consolidation. Certain information and footnote disclosures normally included in our annual financial statements prepared in accordance with generally accepted accounting principles (“GAAP”) have been condensed or omitted. In the opinion of management, the accompanying condensed consolidated unaudited financial statements (“financial statements”) contain all adjustments necessary to fairly present the financial information included herein, such as adjustments consisting of normal recurring items. The Company believes that although the disclosures contained herein are adequate to prevent the information presented from being misleading, these financial statements should be read in conjunction with the Company’s annual audited consolidated financial statements for the fiscal year ended September 30, 2017, as filed with the Securities and Exchange Commission on Form 10-K. For purposes of this report, unless the context indicates otherwise, all references to “we”, “us”, “our”, the “Company”, and “AMCON” shall mean AMCON Distributing Company and its subsidiaries. Additionally, the three month fiscal periods ended December 31, 2017 and December 31, 2016 have been referred to throughout this quarterly report as Q1 2018 and Q1 2017, respectively. The fiscal balance sheet dates as of December 31, 2017 and September 30, 2017 have been referred to as December 2017 and September 2017, respectively.
ACCOUNTING PRONOUNCEMENTS	ACCOUNTING PRONOUNCEMENTS Accounting Pronouncements Adopted In July 2015, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2015-11, "Simplifying the Measurement of Inventory" ("ASU 2015-11"). ASU 2015-11 requires an entity to measure inventory at the lower of cost and net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. Subsequent measurement is unchanged for inventory measured using last-in, first-out (“LIFO”) or the retail inventory method. This ASU is effective for fiscal years beginning after December 15, 2016 (Fiscal 2018 for the Company). The amendments should be applied prospectively with earlier application permitted as of the beginning of an interim or annual reporting period. The adoption of this ASU did not have a material impact on our consolidated financial statements. In March 2016, FASB issued ASU No. 2016-09, “Compensation - Stock Compensation: Improvements to Employee Share-Based Payment Accounting” (“ASU 2016-09”). ASU 2016-09 simplifies several aspects of how companies account for share-based compensation, including the accounting for income taxes, forfeitures, and statutory tax withholding requirements, as well as classification in the statements of cash flows. ASU 2016-09 is effective for annual periods beginning after December 15, 2016 (Fiscal 2018 for the Company) and early adoption is permitted. The adoption of this ASU did not have a material impact on our consolidated financial statements. New Accounting Pronouncements In May 2014, FASB issued ASU No. 2014-09, "Revenue from Contracts with Customers." This ASU and related amendments supersedes the revenue recognition requirements in "Accounting Standard Codification 605 - Revenue Recognition" and most industry-specific guidance. The standard requires that entities recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which a company expects to be entitled in exchange for those goods or services. This ASU is effective for fiscal years beginning after December 15, 2017 (Fiscal 2019 for the Company), and for interim periods within that fiscal year. The Company is in the data aggregation and quantification phase of its review of this new standard, and is working to assess the impact and our approach towards adopting this ASU. In February 2016, FASB issued ASU No. 2016-02 "Leases” ("ASU 2016-02"). ASU 2016-02 requires the recognition of lease assets and lease liabilities by lessees for all leases greater than one year in duration and classified as operating leases under previous GAAP. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018 (Fiscal 2020 for the Company), and for interim periods within that fiscal year. The Company is currently evaluating this ASU and its potential impact on our consolidated financial statements including the potential capitalization of all operating leases on the Company’s balance sheet. In June 2016, the FASB issued ASU No. 2016-13, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments” (“ASU 2016-13”), which introduces a forward-looking approach, based on expected losses, to estimate credit losses on certain types of financial instruments, including trade receivables. The estimate of expected credit losses will require entities to incorporate considerations of historical information, current information and reasonable and supportable forecasts. This ASU also expands the disclosure requirements to enable users of financial statements to understand the entity’s assumptions, models and methods for estimating expected credit losses. This guidance is effective for fiscal years beginning after December 15, 2019 (fiscal 2021 for the Company) with early adoption permitted. The Company is currently reviewing this ASU and its potential impact on our consolidated financial statements. In January 2017, FASB issued ASU No. 2017-04, “Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment” (“ASU 2017-04”). The new guidance simplifies the subsequent measurement of goodwill by eliminating Step 2 from the goodwill impairment test. ASU 2017-04 requires goodwill impairment to be measured as the amount by which a reporting unit’s carrying amount exceeds its fair value, not to exceed the carrying amount of its goodwill. ASU 2017-04 requires prospective application and is effective for annual periods beginning after December 15, 2019 (Fiscal 2021 for the Company) with early adoption permitted. The Company is currently evaluating this ASU and its potential impact on our consolidated financial statements.