Pension Expense	12 Months Ended
Jun. 30, 2021
Retirement Benefits [Abstract]
Pension Expense	Note 7. Pension Expense Under terms of a negotiated union contract which expires on June 30, 2022, the Company is obligated to make contributions to a union-sponsored International Brotherhood of Electrical Workers Local 1799 defined benefit pension plan (Plan identifying number is 14-6065199) covering eligible employees. Such contributions and expenses are based upon hours worked at a specified rate and amounted to $112,997 in fiscal year 2021 and $121,273 in fiscal year 2020. These contributions represent more than five percent of the total contributions made into the Plan. For the years beginning January 1, 2021 and 2020, the Plan was in the “green zone” which means it is neither endangered nor critical status. A Funding Improvement Plan, entered into by Plan Trustees in fiscal year 2013, when the Plan was in “critical status,” calls for an increase in contributions starting January 1, 2016 of $0.04 per hour for each year for five years thereafter. The increase did not and will not have a material impact on the Company’s financial statements. The Company sponsors a 401(k) plan for non-union workers with employee and employer matching contributions. The employer match is 10% of the employee contribution and was $49,218 and $58,389, for fiscal years 2021 and 2020, respectively.

Tabular disclosure of pension and other postretirement benefit arrangements with individual employees, which are generally based on employment contracts between the entity and one or more selected officers or key employees, and which contain a promise by the employer to pay certain amounts at designated future dates, usually including a period after retirement, upon compliance with stipulated requirements. This type of arrangement is distinguished from broader based employee benefit plans as it is usually tailored to the employee. Disclosure also typically includes the amount of related compensation expense recognized during the reporting period and the carrying amount as of the balance sheet date of the related liability.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 710
-SubTopic 10
-Section 30
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 710
-SubTopic 10
-Section 25
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=6409733&loc=d3e19512-108361

Name:	us-gaap_DeferredCompensationArrangementWithIndividualDisclosurePostretirementBenefitsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration