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SCHEDULE OF SUPPLEMENTAL BALANCE SHEET INFORMATION (Details) (Parenthetical) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Operating Leases |  |
Accumulated amortization of right-of-use assets | $ 1,749 | $ 1,265

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

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- Definition Accumulated amortization of right-of-use assets. + References No definition available. + Details
Name: | POLA_OperatingLeaseRightOfUseAssetAccumulatedAmortization
Namespace Prefix: | POLA_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant