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Incentive Plan Items (Details Narrative) - USD ($) | 6 Months Ended
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Jun. 30, 2020 | Jun. 30, 2019
Incentive Plan Items |  |
Stock compensation expenses | $ 34,642 | $ 500,000

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Namespace Prefix: | amrh_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of noncash expense for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration