Condensed Consolidated Statements of Comprehensive Earnings (Unaudited) (Parentheticals) - USD ($)	3 Months Ended	9 Months Ended
Apr. 01, 2018	Apr. 01, 2018
Unrealized gain on available-for-sale securities, tax	$ (132,929)	$ (41,737)
Reclassification adjustment for gain included in net gain, tax		$ (2,167)

Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e640-108580

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 9
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27357-111563

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