Document And Entity Information - USD ($)	12 Months Ended
	Mar. 31, 2017	Jul. 07, 2017	Sep. 30, 2016
Document and Entity Information [Abstract]
Entity Registrant Name	TEL INSTRUMENT ELECTRONICS CORP
Document Type	10-K
Current Fiscal Year End Date	--03-31
Entity Common Stock, Shares Outstanding		3,255,887
Entity Public Float			$ 6,606,534
Amendment Flag	false
Entity Central Index Key	0000096885
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Smaller Reporting Company
Entity Well-known Seasoned Issuer	No
Document Period End Date	Mar. 31, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	FY