Note 6 - Property, Plant and Equipment, Net (Details Textual) - USD ($)	3 Months Ended
Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023
Depreciation	$ 679,959		$ 596,322
Common Class A [Member] \| Aerospace Tooling Machine [Member] \| Air Power Dynamics, LLC [Member]
Stock Issued During Period, Shares, Purchase of Assets (in shares)		7,317
Stock Issued During Period, Value, Purchase of Assets		$ 150,000

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482099/360-10-50-1

Name:	us-gaap_Depreciation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration