Document and Entity Information
Document and Entity Information | Nov. 04, 2020 | Apr. 01, 2020 |
Cover [Abstract] | ||
Document Type | 8-K | |
Document Period End Date | Nov. 4, 2020 | |
Entity Registrant Name | CARDIOVASCULAR SYSTEMS, INC. | |
Entity Incorporation, State or Country Code | DE | |
Entity File Number | 000-52082 | |
Entity Tax Identification Number | 41-1698056 | |
Entity Address, Address Line One | 1225 Old Highway 8 Northwest | |
Entity Address, City or Town | St. Paul | |
Entity Address, State or Province | MN | |
Entity Address, Postal Zip Code | 55112-6416 | |
City Area Code | 651 | |
Local Phone Number | 259-1600 | |
Written Communications | false | |
Soliciting Material | false | |
Pre-commencement Tender Offer | false | |
Pre-commencement Issuer Tender Offer | false | |
Entity Emerging Growth Company | false | |
Title of 12(b) Security | Common Stock, One-tenth of One Cent ($0.001)Par Value Per Share | |
Trading Symbol | CSII | |
Security Exchange Name | NASDAQ | |
Entity Central Index Key | 0001180145 | |
Amendment Flag | false |