STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Unaudited) (Parenthetical)	6 Months Ended
Sep. 28, 2018 shares
Statement of Stockholders' Equity [Abstract]
Number of options exercised by surrendering common stock shares	75,000
Number of common stock shares surrendered	55,000

Number of options exercised by surrendering common stock shares.

No definition available.

Name:	iehc_ExerciseOfStockOptionsDuringPeriodBySurrenderingCommonStockShares
Namespace Prefix:	iehc_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration