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Subsequent Event (Schedule of Increases in Base Salaries) (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Chief Financial Officer, Susan K. Barnes [Member] |  |
Subsequent Event [Line Items] |  |
Officers compensation |  | $ 1.00
Chief Financial Officer, Susan K. Barnes [Member] | Scenario, Forecast [Member] |  |
Subsequent Event [Line Items] |  |
Officers compensation | $ 401,500 |
Chief Executive Officer, Michael Hunkapiller, Ph.D. [Member] |  |
Subsequent Event [Line Items] |  |
Officers compensation |  | $ 1.00
Chief Executive Officer, Michael Hunkapiller, Ph.D. [Member] | Scenario, Forecast [Member] |  |
Subsequent Event [Line Items] |  |
Officers compensation | $ 582,900 |

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- Definition Amount of expense for salary and wage arising from service rendered by officer. Excludes allocated cost, labor-related nonsalary expense, and direct and overhead labor cost included in cost of good and service sold. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(4)) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
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Balance Type: | debit
Period Type: | duration

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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
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- Details
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Namespace Prefix: |
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