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Summary of Significant Accounting Policies (Details) - USD ($) | Dec. 31, 2018 | Dec. 31, 2017
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Summary of Significant Accounting Policies |  |
Capital losses available for tax purposes |  |

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- Definition The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References No definition available. + Details
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Namespace Prefix: | phys_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
Name: | phys_SummaryOfSignificantAccountingPoliciesAbstract
Namespace Prefix: | phys_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration