Document And Entity Information
Oct. 21, 2019
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Oct. 21, 2019
Entity Registrant Name HealthStream, Inc.
Entity Central Index Key 0001095565
Entity Emerging Growth Company false
Entity File Number 000-27701
Entity Incorporation State Country Code TN
Entity Tax Identification Number 62-1443555
Entity Address Address Line1 500 11th Avenue North
Entity Address, Address Line Two Suite 1000
Entity Address City Or Town Nashville
Entity Address State Or Province TN
Entity Address Postal Zip Code 37203
City Area Code 615
Local Phone Number 301-3100
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of each Class Common Stock (Par Value $0.00)
Trading Symbol HSTM
Name of each exchange on which registered NASDAQ