Document and Entity Information - shares	3 Months Ended
	Apr. 30, 2016	May 23, 2016
Document and Entity Information [Abstract]
Entity Registrant Name	RAVEN INDUSTRIES INC
Entity Central Index Key	0000082166
Current Fiscal Year End Date	--01-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q/A
Document Period End Date	Apr. 30, 2016
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q1
Amendment Flag	true
Amendment Description	Explanatory Note This Amendment No. 1 to Form 10-Q (this Amendment) amends the Quarterly Report on Form 10-Q for the three months ended April 30, 2016 originally filed with the Securities and Exchange Commission (SEC) on May 27, 2016 (the Original Filing) by Raven Industries, Inc. (the Company). Restatement As further discussed in Note 2 to our unaudited consolidated financial statements in Part I, Item 1. "Financial Statements" of this Quarterly Report on Form 10-Q/A subsequent to the issuance of the Original Filing, we and our Audit Committee concluded that we should restate our previously issued unaudited consolidated financial statements to correct errors related to (i) reversal of amortization and depreciation expenses related to certain intangibles and long lived assets in our Vista reporting unit that were considered impaired as part of our restated results for the year-ended January 31, 2016, (ii) correct the balances associated with goodwill, long-lived assets, certain intangibles & acquisition related contingent liability related to Vista reporting unit that were restated in connection with the restated results as of January 31, 2016, and (iii) current income tax accounting as well as to correct balances associated with accrued liabilities, other liabilities, and additional paid-in capital that were adjusted for tax related errors in connection with the restated results as of January 31, 2016. In connection with the restatement, the Company also recorded adjustments for certain other errors which management had previously concluded were immaterial. Disclosure Controls and Procedures Management has reassessed its evaluation of the effectiveness of the design and operation of its disclosure controls and procedures as of April 30, 2016. As a result of that reassessment, management has concluded that the Company did not maintain effective disclosure controls and procedures due to the material weaknesses in internal control over financial reporting which existed at that date. For a description of the material weaknesses in internal control over financial reporting and actions taken, and to be taken, to address the material weaknesses, see Part 1, Item 4. "Controls and Procedures" of this Amended Quarterly Report on form 10-Q/A. Amendment Accordingly, the purpose of this Amendment is to (i) restate our previously issued consolidated financial statements and related disclosures in Part I, Item 1. "Financial Statements" for the three months ended April 30, 2016 as well as related disclosures in Part I, Item 2. "Management's Discussion and Analysis of Financial Condition and Results of Operations," to reflect the correction of the errors described above and which were described in the Company’s Form 8-K filed with the SEC on November 23, 2016, and (ii) to amend and restate in its entirety Part I, Item 4. "Controls and Procedures" of the Original Filing to reflect the conclusions by the Company’s management that internal control over financial reporting and disclosure controls and procedures were not effective as of April 30, 2016 due to the identification of the material weaknesses which resulted in the errors described above and which were described in the Company’s Form 8-K filed with the SEC on November 23, 2016. Except as expressly set forth herein, this Amendment does not reflect events occurring after the date of the Original Filing or modify or update any of the other disclosures contained therein in any way other than as required to reflect the amendment discussed above. The Company also filed an amendment to the Company's Annual Report on Form 10-K for the fiscal year ended January 31, 2016, originally filed with the SEC on March 29, 2016, to restate the Company's previously issued audited consolidated financial statements for the fiscal year ended January 31, 2016 to correct the errors referenced above. The Company restated management's report on internal control over financial reporting and its evaluation of disclosure controls and procedures and received an adverse opinion on the internal control over financial reporting as of January 31, 2016 from its independent registered public accounting firm, PricewaterhouseCoopers LLP. References in this Amendment to Raven Industries, Inc., the Company, "we", "our" or "us" refer to Raven Industries, Inc. and its wholly-owned and consolidated subsidiaries, net of a noncontrolling interest recorded for the noncontrolling investor's interests in the net assets of a 75% owned business venture.
Entity Common Stock, Shares Outstanding		36,158,806