Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to PPP loan forgiveness.

No definition available.

Note O - Income Taxes (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended			37 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Nov. 30, 2011	Dec. 31, 2018
Deferred Tax Assets, Operating Loss Carryforwards, Total	$ 44,448	$ 31,526
Deferred Tax Assets, in Process Research and Development	9,879	9,008
Deferred Tax Assets, Tax Credit Carryforwards, Foreign	4,599	4,599
Deferred Tax Assets, Valuation Allowance, Total	57,721	43,462	$ 25,736		$ 0
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ 14,300	$ 17,700
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%	21.00%
Unrecognized Tax Benefits, Ending Balance	$ 181	$ 181	$ 181		$ 181
Income Tax Examination, Penalties and Interest Accrued, Total	0	0	0
Effective Income Tax Rate Reconciliation, PPP Loan Forgiveness, Amount	(1,308)	0	0
Undistributed Earnings of Foreign Subsidiaries	0
Global Technology, Inc. [Member]
Income Tax Holiday, Aggregate Dollar Amount	$ 0	$ 1,400	$ 1,000
Income Tax Holiday, Income Tax Benefits Per Share (in dollars per share)	$ 0.00	$ 0.05	$ 0.05
State Administration of Taxation, China [Member]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	25.00%
State Administration of Taxation, China [Member] \| Global Technology, Inc. [Member]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent				15.00%
TAIWAN, PROVINCE OF CHINA
Operating Loss Carryforwards, Total	$ 71,500
Operating Loss Carryforwards, Carryforward Period (Year)	10 years
CHINA
Operating Loss Carryforwards, Total	$ 48,100
Operating Loss Carryforwards, Carryforward Period (Year)	5 years
Domestic Tax Authority [Member]
Deferred Tax Assets, Operating Loss Carryforwards, Total	$ 104,800
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration	32,700
Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration	72,100
Deferred Tax Assets, in Process Research and Development	$ 9,900
Open Tax Year	2018 2019 2020
Foreign Tax Authority [Member]
Deferred Tax Assets, Tax Credit Carryforwards, Foreign	$ 4,600
Open Tax Year	2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021