Business Description and Accounting Policies [Text Block] | NOTE 1 For a description of key accounting policies followed , refer to the notes to the Spartan Motors, Inc. (the “Company”, “we”, “our” or “us”) consolidated financial statements for the year ended December 31, 2016, 10 March 3, 2017. Spartan Motors, Inc. is a custom engineer and manufacturer of specialized motor vehicle chassis and bodies. Our principal chassis markets are emergency response vehicles, motor homes and other specialty vehicles. We also manufacture bodies for various markets including emergency response vehicles and delivery and service vehicles. Our operating activities are conducted through our wholly-owned operating subsidiary, Spartan Motors USA, Inc. (“Spartan USA”), with locations in Charlotte, Michigan; Brandon, South Dakota; Snyder and Neligh, Nebraska; Delavan, Wisconsin; Ephrata, Pennsylvania; Bristol, Indiana; Kansas City, Missouri; and Saltillo, Mexico. Spartan USA was formerly known as Crimson Fire, Inc. Our Charlotte, Michigan location manufactures heavy duty chassis and vehicles and supplies aftermarket parts and accessories under the Spartan Chassis and Spartan ER brand names. Our Brandon, South Dakota; Snyder and Neligh, Nebraska; Delavan, Wisconsin; and Ephrata, Pennsylvania locations manufacture emergency response vehicles under the Spartan ER, Smeal, US Tanker and Ladder Tower Company brand names. Our Bristol, Indiana location manufactures vehicles used in the parcel delivery, mobile retail and trades and construction industries, and supplies related aftermarket parts and services under the Utilimaster brand name. Our Kansas City, Missouri and Saltillo, Mexico locations sell and install equipment used in fleet vehicles. Spartan USA is also a participant in Spartan-Gimaex Innovations, LLC (“Spartan-Gimaex”), a 50/50 February 2015, June 2015, February 2017, 10 On January 1, 2017, red substantially all of the assets and certain liabilities of Smeal Fire Apparatus Co., Smeal Properties, Inc., Ladder Tower Co., and U.S. Tanker Co. When used in this Quarterly Report on Form 10 The accompanying unaudited interim condensed consolidated financial statements reflect all normal and recurring adjustments that are necessary for the fair presentation of our financial position as of March 31, 2017, three March 31, 2017 three March 31, 2017, 10 December 31, 2016. The results of operations for the three March 31, 2017 We are required to disclose the fair value of our financial instruments in accordance with Financial Accounting Standards Board (“FASB”) Codification relating to “Disclosures about Fair Values of Financial Instruments.” The carrying amounts of cash and cash equivalents, accounts receivable, accounts payable and our variable rate debt instruments approximate their fair value at March 31, 2017 December 31, 2016. Certain immaterial amounts in the prior periods’ financial statements have been reclassified to conform to the current period’s presentation. These reclassifications had no impact on previously reported Net income (loss) or Total shareholders’ equity. New Accounting Standards In February 2017 2017 05, Other Income-Gains and Losses from the Derecognition of Nonfinancial Assets (Subtopic 610 20) 2017 05”). 2017 05 2017 05 2014 09 that the adoption of the provisions of ASU 2017 05 In January 2017, 2017 04, Intangibles—Goodwill and Other (Topic 350): 2017 4”). 2017 4 December 15, 2019, January 1, 2017. We believe that that the adoption of the provisions of ASU 2017 04 In January 2017, ccounting Standards Update 2017 01, Business Combinations (Topic 805): 2017 01”), December 15, 2017, We believe that the adoption of the provisions of ASU 2017 01 In August 2016, 2016 15, Statement of Cash Flows (Topic 230) 2016 15”). 2016 15 2016 15 December 15, 2017, that the adoption of the provisions of ASU 2016 15 In June 2016, ccounting Standards Update 2016 13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments 2016 13”). 2016 13 December 15, 2019 2016 13 In March 2016, 2016 09, Compensation – Stock Compensation 2016 09”). 2016 09 2016 09 December 15, 2016, 2016 09 December 31, 2017 March 31, 2017. In February 2016, 2016 02, Leases 2016 02”). 12 December 15, 2018, 2016 02 In May 2014, 2014 09, Revenue from Contracts with Customers (Topic 606) 2014 09”). 2014 09 2014 09 December 15, 2017, may December 15, 2016 August 12, 2015, 2018, 2017 2014 09 first 2018. In March 2016, 2016 08, Revenue from Contracts with Customers (Topic 606), 2016 08”). 2016 08 two 2016 08 2014 09 In April 2016, 2016 10, Revenue from Contracts with Customers (Topic 606), 2016 10”). 2016 10 606 2016 10 2016 10 2016 10 2014 09 In May 2016, 2016 12, Revenue from Contracts with Customers (Topic 606), 2016 12”). 2016 12 2016 12 2014 09 |