Note 14 - Sales and Service Revenue and Cost of Sales and Services (Details Textual)	1 Months Ended	9 Months Ended
	Jun. 08, 2023 USD ($) lb	Apr. 30, 2023 lb
Inventory, Balance , Mass (Pound)		771,000
Subsequent Event [Member]
Inventory, Balance , Mass (Pound)	100,000
Proceeds From Sale of Inventory | $	$ 5,405
Subsequent Event [Member] | Supply Commitment [Member]
Inventory, Balance , Mass (Pound)	200,000
Proceeds From Sale of Inventory | $	$ 10,835
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Sale of Inventory [Member] | Customer A [Member]
Concentration Risk, Percentage		20.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Sale of Inventory [Member] | Customer B [Member]
Concentration Risk, Percentage		16.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Sale of Inventory [Member] | Customer C [Member]
Concentration Risk, Percentage		16.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Sale of Inventory [Member] | Customer D [Member]
Concentration Risk, Percentage		14.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Sale of Inventory [Member] | Customer E [Member]
Concentration Risk, Percentage		10.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Sale of Inventory [Member] | Other Customer [Member]
Concentration Risk, Percentage		24.00%