Income Taxes - Changes in unrecognized tax benefits (Details) - USD ($)	12 Months Ended
Apr. 01, 2018	Mar. 26, 2017	Mar. 27, 2016
Reconciliation of unrecognized tax benefit amounts
Beginning balance of unrecognized tax benefit	$ 204,500	$ 290,400	$ 394,400
Increases related to current period tax positions		3,100	3,800
Reductions as a result of a lapse in the applicable statute of limitations	(91,800)	(89,000)	(107,800)
Ending balance of unrecognized tax benefits	$ 112,700	$ 204,500	$ 290,400

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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- Definition

Amount of unrecognized tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=65882285&loc=SL6600010-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Unrecognized Tax Benefit
-URI http://asc.fasb.org/extlink&oid=6527854

+ Details

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- Definition

Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

+ References

+ Details

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- Definition

Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

+ References

+ Details

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