XML 47 R38.htm IDEA: XBRL DOCUMENT
v3.19.1

Warrants and Derivative Liabilities (Detail Textuals 1) - USD ($) |  | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Nov. 01, 2017 | Jan. 31, 2018 | Jan. 19, 2018 | Dec. 28, 2017 | Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018 | Dec. 31, 2017
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |
Value of warrants |  |  |  |  | $ 2,014,101 |  | $ 1,297,991 | $ 982,911
Proceeds from Warrant Exercises |  |  |  |  |  | $ 98,700 |  |
Less, noncurrent portion of derivative liabilities |  |  |  |  | 963,369 |  | 219,453 | 551,322
Change in fair market value at the re-measurement date recorded as non-operating income |  |  |  |  | 12,820,618 | (977,493) | 6,503,174 | (767,198)
Fair value of derivative liabilities |  |  |  |  | 516,058 | 10,784,634 | 10,988,736 | 368,364
Series F Preferred Stock Put Option Liability |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |
Change in fair market value at the re-measurement date recorded as non-operating income |  |  |  |  |  |  |  | (103,364)
Fair value of derivative liabilities | $ 103,364 |  |  |  |  |  |  | 103,364
Series B Preferred Stock Conversion Liability |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |
Change in fair market value at the re-measurement date recorded as non-operating income |  |  |  |  |  | 0 | 0 | (102,848)
Provision for conversion of Series B preferred stock |  |  |  |  |  | 6,715 |  |
Fair value of derivative liabilities |  |  |  |  |  | $ 0 | 0 | 0
Emerald Convertible Promissory Note - conversion liability |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |
Change in fair market value at the re-measurement date recorded as non-operating income |  |  |  |  |  |  | 185,000 | 0
Fair value of derivative liabilities |  |  |  |  |  |  | 360,000 | $ 265,000
Change in fair value of warrant liability |  |  | $ 360,000 | $ 265,000 |  |  |  |
Emerald Multi-Draw Credit Agreement Warrants |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |
Change in fair market value at the re-measurement date recorded as non-operating income |  |  |  |  |  |  | 15,351 |
Fair value of derivative liabilities |  |  |  |  |  |  | $ 204,102 |
Series B Warrants |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |
Number of warrants issued |  |  |  |  |  |  | 6,437,500 |
Warrant exercise price |  | $ 0.10 | $ 0.00 | $ 0.10 |  |  |  |
Value of warrants |  |  |  |  |  |  | $ 2,935,800 |
Proceeds from financing between conversion liability and warrants |  |  |  |  | $ 5,000,000 |  | $ 5,000,000 |
Number of warrants exercisable |  | 987,000 | 3,806,750 |  |  |  | 4,231,750 |
Proceeds from Warrant Exercises |  | $ 98,700 |  |  |  |  |  |
Series B Warrants | Bridge Loan | Secured Promissory Note and Security Agreement |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |
Initial conversion price |  |  | $ 0.00 |  |  |  |  |
2015 Common Stock Warrants |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |
Warrant exercise price |  |  |  |  | $ 1.15 |  |  |
2015 Common Stock Warrants | Minimum |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |
Warrant exercise price |  |  |  |  | $ 1.15 |  | $ 1.15 |

X
- Definition Amount of expense (income) related to warrant liability. + References No definition available. + Details
Name: | embi_ChangeInFairValueOfWarrantLiability
Namespace Prefix: | embi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The fair value of warrants issued in noncash investing or financing activities. + References No definition available. + Details
Name: | embi_FairValueOfWarrantsIssued
Namespace Prefix: | embi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of warrants exercisable. + References No definition available. + Details
Name: | embi_NumberOfWarrantsExercisable
Namespace Prefix: | embi_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the amount related to proceeds from financing between the conversion liability and the warrants. + References No definition available. + Details
Name: | embi_ProceedsFromFinancingBetweenConversionLiabilityAndWarrants
Namespace Prefix: | embi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the amount related to provision for conversion of preferred stock as of balance sheet date. + References No definition available. + Details
Name: | embi_ProvisionForConversionOfPreferredStock
Namespace Prefix: | embi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(4)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ClassOfWarrantOrRightLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The price per share of the conversion feature embedded in the debt instrument. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031898-161870 + Details
Name: | us-gaap_DebtInstrumentConvertibleConversionPrice1
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_DerivativeLiabilitiesNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of expense (income) related to adjustment to fair value of warrant liability. + 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 (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section 25 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=109262497&loc=d3e20148-110875 + Details
Name: | us-gaap_FairValueAdjustmentOfWarrants
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash inflow associated with the amount received from holders exercising their stock warrants. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromWarrantExercises
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_WarrantsAndRightsOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=embi_SeriesFPreferredStockPutOptionLiabilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=embi_SeriesBPreferredStockConversionLiabilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=embi_EmeraldConvertiblePromissoryNoteConversionLiabilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=embi_TwoThousandEighteenEmeraldMultiDrawCreditAgreementWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=embi_SeriesBWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortTermDebtTypeAxis=us-gaap_BridgeLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TypeOfArrangementAxis=embi_SecuredPromissoryNoteAndSecurityAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=embi_TwoThousandFifteenCommonStockWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |