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Summary of Significant Accounting Policies (Detail Textuals) - USD ($) | Mar. 31, 2019 | Dec. 31, 2018
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Accounting Policies [Abstract] |  |
Fair value of advance under credit agreement | $ 13,932,858 | $ 3,176,824
Carrying value of total convertible debt - related party | $ 2,914,237 |

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- Definition The carrying value of convertible multi- draw credit facility - related party as of the balance sheet date. + References No definition available. + Details
Name: | embi_ConvertibleMultiDrawCreditFacility
Namespace Prefix: | embi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

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- Definition Fair value of the amount outstanding under the credit facility. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611 + Details
Name: | us-gaap_LineOfCreditFacilityFairValueOfAmountOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant