Concentration of credit risk (Details) - USD ($)	3 Months Ended
Sep. 30, 2025	Sep. 30, 2024
Concentration Risk [Line Items]
Concentration Risk, Supplier		one
Net loss	$ (239,852)	$ (32,217)
Accumulated Deficit [Member]
Concentration Risk [Line Items]
Net loss	$ (239,852)	$ (32,217)
Customer Concentration Risk [Member] \| Customer One [Member]
Concentration Risk [Line Items]
Concentration Risk, Customer	One	One
Geographic Concentration Risk [Member]
Concentration Risk [Line Items]
Revenues	$ 2,675,000	$ 2,781,000
Accounts Receivable
Concentration Risk [Line Items]
Concentration Risk, Customer	one	one
Accounts Receivable \| Customer Concentration Risk [Member] \| Customer One [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	23.00%	21.00%
Revenue Benchmark \| Supplier Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration Risk, Supplier	two
Revenue Benchmark \| Customer Concentration Risk [Member] \| Customer One [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	17.00%	18.00%
Revenue Benchmark \| Geographic Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	100.00%	100.00%
Accounts Payable \| Supplier Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration Risk, Supplier	two	two
Domestic [Member] \| Geographic Concentration Risk [Member]
Concentration Risk [Line Items]
Revenues		$ 1,746,000
Domestic [Member] \| Revenue Benchmark \| Geographic Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	60.80%	62.80%
International [Member] \| Geographic Concentration Risk [Member]
Concentration Risk [Line Items]
Revenues	$ 1,049,000	$ 1,035,000
International [Member] \| Revenue Benchmark \| Geographic Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	39.20%	37.20%
Supplier one [Member] \| Accounts Payable Benchmark [Member] \| Supplier Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	31.00%	30.00%
Supplier one [Member] \| Revenue Benchmark \| Supplier Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	30.00%	39.00%
Supplier two [Member] [Member] \| Accounts Payable Benchmark [Member] \| Supplier Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	13.00%
Supplier two \| Accounts Payable Benchmark [Member] \| Supplier Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage		28.00%

Description of risks that arise due to the volume of business transacted with a particular customer. At a minimum, the description informs financial statement users of the general nature of the risk, but excludes "Information about Major Customers" that may be disclosed elsewhere (for instance, segment disclosures).

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