Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2017	Mar. 28, 2018	Jun. 30, 2017
Document And Entity Information [Abstract]
Entity Registrant Name	PetroShare Corp.
Entity Central Index Key	0001568079
Document Type	10-K
Document Period End Date	Dec. 31, 2017
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Is Entity a Well-known Seasoned Issuer?	No
Is Entity a Voluntary Filer?	Yes
Is Entity's Reporting Status Current?	No
Entity Filer Category	Smaller Reporting Company
Entity Public Float			$ 22,999,615
Entity Common Stock, Shares Outstanding		27,788,802
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2017