Note 5 - Employee Benefit Plans (Details) - Assumptions used to determine the postretirement benefit obligation and the net periodic benefit cost were as follows:	12 Months Ended
Mar. 30, 2013	Mar. 30, 2012
Note 5 - Employee Benefit Plans (Details) - Assumptions used to determine the postretirement benefit obligation and the net periodic benefit cost were as follows: [Line Items]
Weighted average discount rate	4.50%	4.70%
Medical care cost trend rate:
Ultimate trend rate	5.00%	5.00%
Year that rate reaches ultimate trend rate	2021	2020
Medical Care Cost [Member]
Medical care cost trend rate:
Trend rate assumed for next year	8.00%	8.50%
Dental Care Cost [Member]
Medical care cost trend rate:
Trend rate assumed for next year	5.00%	5.00%

Name:	trns_MedicalCareCostTrendRateAbstract
Namespace Prefix:	trns_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Name:	trns_Note5EmployeeBenefitPlansDetailsAssumptionsusedtodeterminethepostretirementbenefitobligationandthenetperiodicbenefitcostwereasfollowsLineItems
Namespace Prefix:	trns_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The interest rate used to adjust for the time value of money for the plan.

+ References

+ Details

Name:	us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The assumed health care cost trend rate for the next year used to measure the expected cost of benefits covered by the plan (gross eligible charges). This is based upon the annual rate of change in the cost of health care benefits currently provided by the postretirement benefit plan, due to factors other than changes in the composition of the plan population by age and dependency status.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (l)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Health Care Cost Trend Rate

-URI http://asc.fasb.org/extlink&oid=6514820

+ Details

Name:	us-gaap_DefinedBenefitPlanHealthCareCostTrendRateAssumedForNextFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The ultimate trend rate for health care costs.

+ References

+ Details

Name:	us-gaap_DefinedBenefitPlanUltimateHealthCareCostTrendRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Year the ultimate health care cost trend rate is expected to be reached, in CCYY format.

+ References

+ Details

Name:	us-gaap_DefinedBenefitPlanYearThatRateReachesUltimateTrendRate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:gYearItemType
Balance Type:	na
Period Type:	instant