XML 107 R58.htm IDEA: XBRL DOCUMENT
v3.20.1

Equity Compensation Plans - Schedule of Option Activity (Details) (10-K) - $ / shares | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Number of Options, Outstanding Beginning Balance |  | 0 | 0 | 0 | 80,000
Option available Outstanding Beginning balance | 42,114 | 6,597 | 17,737 | 70,672 |
Number of Options, Granted | 0 | 80,155 | 22,389 | 59,335 | 9,328
Number of Options, Cancelled/expired | 32,908 | 35,671 | 11,249 | 6,400 | 0
Number of Options, New pool added | 0 | 80,000 |  |  |
Number of Options, Outstanding Ending Balance | 75,022 |  | 0 | 0 | 0
Option available Outstanding Ending balance |  | 42,114 | 6,597 | 17,737 | 70,672
Options [Member] |  |  |  |  |
Number of Options, Outstanding Beginning Balance |  | 46,412 | 38,628 | 6,000 |
Option available Outstanding Beginning balance | 0 | 0 | 0 | 0 |
Number of Options, Granted | 0 | 74,480 | 11,400 | 39,028 | 6,000
Number of Options, Cancelled/expired | 32,908 | 34,072 | 3,616 | 6,400 | 0
Number of Options, New pool added | 0 | 0 |  |  |
Number of Options, Outstanding Ending Balance | 0 |  | 46,412 | 38,628 | 6,000
Option available Outstanding Ending balance | 0 | 0 | 0 | 0 | 0
Weighted Average Price, Beginning Balance |  | $ 152.5 | $ 159.5 | $ 66.75 |
Weighted Average Price Available, Beginning balance | $ 0 | 0 | 0 | 0 |
Weighted Average Price, Granted | 0 | 36.75 | 140.5 | 169.75 | 66.75
Weighted Average Price, Cancelled/expired | 0 | 150 | 163.5 | 135.25 | 0
Weighted Average Price, New pool added | 0 | 0 |  |  |
Weighted Average Price, Ending Balance | 0 |  | 152.5 | 159.5 | 66.75
Weighted Average Price Available, Ending balance | $ 0 | $ 0 | $ 0 | $ 0 | $ 0
Restricted Stock Units [Member] |  |  |  |  |
Number of Options, Outstanding Beginning Balance |  | 19,047 | 23,635 | 3,328 |
Option available Outstanding Beginning balance | 0 | 0 | 0 | 0 |
Number of Options, Granted | 0 | 5,675 | 3,045 | 20,307 | 3,328
Number of Options, Cancelled/expired | 0 | 1,599 | 7,633 | 0 | 0
Number of Options, New pool added | 0 | 0 |  |  |
Number of Options, Outstanding Ending Balance | 0 |  | 19,047 | 23,635 | 3,328
Option available Outstanding Ending balance | 0 | 0 | 0 | 0 | 0
Shares of Stock [Member] |  |  |  |  |
Number of Options, Outstanding Beginning Balance |  | 7,944 | 0 | 0 |
Option available Outstanding Beginning balance | 0 | 0 | 0 | 0 |
Number of Options, Granted | 0 | 0 | 7,944 | 0 | 0
Number of Options, Cancelled/expired | 0 | 0 | 0 | 0 | 0
Number of Options, New pool added | 0 | 0 |  |  |
Number of Options, Outstanding Ending Balance | 0 |  | 7,944 | 0 | 0
Option available Outstanding Ending balance | 0 | 0 | 0 | 0 | 0
Weighted Average Price, Beginning Balance |  | $ 64.5 | $ 0 | $ 0 |
Weighted Average Price Available, Beginning balance | $ 0 | 0 | 0 | 0 |
Weighted Average Price, Granted | 0 | 0 | 64.5 | 0 | 0
Weighted Average Price, Cancelled/expired | 0 | 0 | 0 | 0 | 0
Weighted Average Price, New pool added | 0 | 0 |  |  |
Weighted Average Price, Ending Balance | 0 |  | 64.5 | 0 | 0
Weighted Average Price Available, Ending balance | $ 0 | $ 0 | $ 0 | $ 0 | $ 0

X
- Definition Share based compensation arrangement by share based payment award options new pool added in period weighted average exercise price. + References No definition available. + Details
Name: | amrh_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNewPoolAddedInPeriodWeightedAverageExercisePrice
Namespace Prefix: | amrh_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The weighted average fair value of shares of stock. + References No definition available. + Details
Name: | amrh_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesOfStockWeightedAverageExercisePrice
Namespace Prefix: | amrh_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of additional shares authorized for issuance under share-based payment arrangement. + References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares authorized for issuance under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average price of options that were either forfeited or expired. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. + References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=amrh_OptionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=amrh_RestrictedStockUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=amrh_SharesofStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |