Represents aggregate amount of royalty to be paid spread over the period of agreement.

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Amount of contractual obligation maturing in the next rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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No definition available.

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Amount of contractual obligation maturing in the fourth and fifth rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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No definition available.

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Amount of contractual obligation maturing in the second and third rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Contractual Obligation Rolling Maturities [Abstract]

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Represents the number of additional years that would extend the lease were the entity to pick up the option.

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Represents the additional years added on to a lease arrangement.

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Represents period of warranty provided by the entity in connection with sale of its products against material defects.

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Amount of future royalty agreement payments due.

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Amount of future royalty agreement payments due in the next rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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No definition available.

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Represents period of royalty agreement as stipulated in the terms of the contract.

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Total estimated investment value to related party including assets and capital.

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Area of a real estate property.

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Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.

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No definition available.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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No definition available.

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The effective interest rate at the end of the reporting period.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth and fifth rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second and third rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of increase (decrease) in the standard and extended product warranty accrual from changes in estimates attributable to preexisting product warranties.

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Amount of increase in the standard and extended product warranty accrual from warranties issued.

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Amount as of the balance sheet date of the aggregate standard product warranty liability. Does not include the balance for the extended product warranty liability.

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Amount of decrease in the standard product warranty accrual from payments made in cash or in kind to satisfy claims under the terms of the standard product warranty. Excludes extended product warranties.

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Commitments and Contingencies (Details)	1 Months Ended		3 Months Ended		9 Months Ended		12 Months Ended
Commitments and Contingencies (Details)	Sep. 30, 2018 USD ($) ft²	May 31, 2017	Sep. 30, 2018 USD ($) ft²	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($) ft²	Sep. 30, 2017 USD ($)	Dec. 31, 2020
Product Warranty [Abstract]
Period of warranty					12 months
Change in warranty accrual [Roll Forward]
Beginning accrued product warranty			$ 178,000	$ 130,000	$ 133,000	$ 251,000
Accruals for warranties issued			125,000	7,000	258,000	77,000
Adjustments related to pre-existing warranties including expirations and changes in estimates			(10,000)	18,000	(33,000)	(114,000)
Cost of warranty repair			(65,000)	(17,000)	(130,000)	(76,000)
Ending accrued product warranty	$ 228,000		$ 228,000	$ 138,000	$ 228,000	$ 138,000
Leases [Abstract]
Area of property under long-term operating lease (in square feet) \| ft²	19,467		19,467		19,467
Additional years per lease option					3 years
Number of additional years to lease term		3 years
Term of royalty agreement					8 years
Aggregate amount payable towards royalty	$ 7,000,000		$ 7,000,000		$ 7,000,000
Bank Loans [Abstract]
Outstanding	291,000		291,000		291,000
Operating leases
Less than 1 year	193,000		193,000		193,000
1-3 years	233,000		233,000		233,000
4-5 years	26,000		26,000		26,000
Total	452,000		452,000		452,000
Royalty agreement
Less than 1 year	144,000		144,000		144,000
Total	144,000		144,000		144,000
Total
Less than 1 year	337,000		337,000		337,000
1-3 years	233,000		233,000		233,000
4-5 years	26,000		26,000		26,000
Total	596,000		596,000		596,000
ICBC \| Secured Debt
Bank Loans [Abstract]
Maximum borrowing capacity	$ 2,900,000		$ 2,900,000		$ 2,900,000
Annual interest rate at end	4.40%		4.40%		4.40%
Outstanding	$ 291,000		$ 291,000		$ 291,000
ICBC \| Secured Debt \| Prime Rate
Bank Loans [Abstract]
Spread	0.04%
Forecast
Leases [Abstract]
Number of additional years to lease term							3 years
Dingxing
Leases [Abstract]
Total investment agreement value	$ 90,000,000		90,000,000		90,000,000
Kazuo
Leases [Abstract]
Total investment agreement value	15,000,000		15,000,000		15,000,000
Beijing BoYu Semiconductor Vessel Craftwork Technology Co., Ltd Investment \| Kazuo
Leases [Abstract]
Total investment agreement value	$ 8,000,000		$ 8,000,000		$ 8,000,000