XML 13 R54.htm IDEA: XBRL DOCUMENT v2.4.0.6

Income Taxes (Details)	9 Months Ended
Income Taxes (Details)	Jan. 01, 2012	Jan. 02, 2011
Income Taxes [Abstract]
Effective tax rate	2.50%	3.20%

A ratio calculated by dividing the reported amount of income tax expense for the period by GAAP-basis pretax income.

No definition available.

Name:	idti_EffectiveTaxRate
Namespace Prefix:	idti_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Name:	us-gaap_IncomeTaxDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration