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Note A - The Company and Summary of Significant Accounting Policies - Estimated Useful Lives for Depreciation and Amortization (Details) | 12 Months Ended
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Dec. 31, 2018
Equipment [Member] | Minimum [Member] |
Property, Plant, and Equipment (Year) | 3 years
Equipment [Member] | Maximum [Member] |
Property, Plant, and Equipment (Year) | 5 years
Furniture and Fixtures [Member] | Minimum [Member] |
Property, Plant, and Equipment (Year) | 3 years
Furniture and Fixtures [Member] | Maximum [Member] |
Property, Plant, and Equipment (Year) | 5 years
Software Development [Member] |
Property, Plant, and Equipment (Year) | 3 years
Leasehold Improvements [Member] |
Property, Plant, and Equipment, useful life | life or lease term

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- Definition Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 35 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=68071081&loc=d3e1205-110223 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790 + Details
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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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