Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2015	Jul. 25, 2015
Document Information [Line Items]
Entity Registrant Name	PSYCHEMEDICS CORP
Entity Central Index Key	0000806517
Current Fiscal Year End Date	--12-31
Entity Filer Category	Smaller Reporting Company
Trading Symbol	PMD
Entity Common Stock, Shares Outstanding		5,422,541
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2015
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2015