4. Investment in Pemberwick Fund (Details)	May 31, 2018 $ / shares	Mar. 30, 2018 USD ($) $ / shares	Mar. 30, 2017 USD ($) $ / shares
Details
Weighted Average Duration of Pemberwick's assets in years		3.18
Pemberwick Net Asset Value \| $ / shares	$ 9.99	$ 9.98	$ 10.03
Investment in Pemberwick Fund - a short duration bond fund		$ 309,296	$ 832,364
Unrealized loss reflected as accumulated other comprehensive loss		2,618
Aggregate interest revenue from investment in Pemberwick		$ 57,021

Represents the monetary amount of Aggregate interest revenue from investment in Pemberwick, as of the indicated date.

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- Definition

Represents the per-share monetary value of Pemberwick Net Asset Value, as of the indicated date.

+ References

No definition available.

+ Details

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- Definition

Represents the monetary amount of Unrealized loss reflected as accumulated other comprehensive loss, as of the indicated date.

+ References

No definition available.

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- Definition

Represents the Weighted Average Duration of Pemberwick's assets in years, as of the indicated date.

+ References

No definition available.

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- Definition

Amount of equity securities categorized neither as held-to-maturity nor as trading.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=75030427&loc=d3e22054-111558

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82896770&loc=d3e26610-111562

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 320
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=75019621&loc=d3e62557-112803

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