Document and Entity Information - USD ($)	12 Months Ended
	Jun. 30, 2015	Sep. 18, 2015	Dec. 31, 2014
Document and Entity Information
Entity Registrant Name	NORTHEAST BANCORP /ME/
Entity Central Index Key	0000811831
Document Type	10-K
Document Period End Date	Jun. 30, 2015
Amendment Flag	false
Current Fiscal Year End Date	--06-30
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Smaller Reporting Company
Entity Public Float			$ 65,212,768
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	FY
Voting common stock
Document and Entity Information
Entity Common Stock, Shares Outstanding		8,523,666
Non-voting common stock
Document and Entity Information
Entity Common Stock, Shares Outstanding		1,012,717