Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2015	Apr. 04, 2016	Jun. 30, 2015
Document and Entity Information:
Entity Registrant Name	N-Viro International Corporation
Document Type	10-K
Document Period End Date	Dec. 31, 2015
Trading Symbol	nvic
Amendment Flag	false
Entity Central Index Key	0000904896
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding		8,929,826
Entity Public Float			$ 6,940,000
Entity Filer Category	Smaller Reporting Company
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	FY