Accrued withholding taxes.

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The percent of limitation on the taxable income for the operating loss carryforward.

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No definition available.

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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No definition available.

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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No definition available.

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Amount of cash outflow to satisfy grantee's tax withholding obligation.

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No definition available.

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Amount of cash outflow to satisfy grantee's tax withholding obligation for dividends.

+ References

No definition available.

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- Definition

Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

+ References

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.

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- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.

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The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Amount of unrecognized tax benefits.

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Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

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Note 9 - Income Taxes (Details Textual) - USD ($)			12 Months Ended
Note 9 - Income Taxes (Details Textual) - USD ($)	Jan. 02, 2018	Jan. 01, 2018	Jun. 30, 2026	Jun. 30, 2025
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			21.00%	21.00%
Effective Income Tax Rate Reconciliation, Percent			(1.60%)
Deferred Tax Liabilities, Net			$ 9,182	$ 130,189
Deferred Tax Assets, Valuation Allowance			17,789,144	13,963,557
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount			3,800,000
Deferred Tax Assets, Net of Valuation Allowance			2,560,358	2,818,545
Unrecognized Tax Benefits			0	0
Research Tax Credit Carryforward [Member]
Tax Credit Carryforward, Amount			1,900,000
LPOIZ [Member]
Payments of Dividends			200,000	1,100,000
Payment, Tax Withholding, Dividends			20,000.00	100,000
Accrued Withholding Taxes			$ 100,000	$ 100,000
State Administration of Taxation, China [Member] \| LPOIZ [Member]
Effective Income Tax Rate Reconciliation, Percent			15.00%	15.00%
Deferred Tax Liabilities, Net			$ 100,000	$ 200,000
Payment, Tax Withholding			$ 40,000.00	$ 30,000.00
Latvian State Revenue Service [Member] \| ISP Optics Latvia [Member]
Effective Income Tax Rate Reconciliation, Percent	25.00%	20.00%
Latvian State Revenue Service [Member] \| ISP Optics Latvia [Member]
Effective Income Tax Rate Reconciliation, Percent			15.00%
Income Tax Jurisdiction, Foreign [Member] \| State Administration of Taxation, China [Member]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			25.00%
Income Tax Jurisdiction, Domestic Federal [Member]
Operating Loss Carryforwards			$ 42,000,000
Operating Loss Carryforwards, Subject to Expiration			14,000,000
Operating Loss Carryforwards, Not Subject to Expiration			$ 28,000,000
Operating Loss Carryforward, Limitation on Taxable Income, Percent			80.00%
Deferred Tax Assets, Net of Valuation Allowance			$ 100,000
Income Tax Jurisdiction, Domestic State and Local [Member]
Operating Loss Carryforwards			33,300,000
Operating Loss Carryforwards, Subject to Expiration			14,700,000
Operating Loss Carryforwards, Not Subject to Expiration			$ 18,600,000