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Commitments and Contingencies (Details Textual) | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Jun. 01, 2018 $ / shares | Apr. 30, 2018 USD ($) a $ / shares | Jun. 30, 2018 USD ($) | Jun. 30, 2017 USD ($) | Jun. 30, 2018 USD ($) | Jun. 30, 2017 USD ($)
Commitments And Contingencies [Line Items] |  |  |  |  |  |
Aggregate Remaining Commitment |  |  | $ 547,000 |  | $ 547,000 |
Business Combination, Contingent Consideration, Liability |  |  | 500,000 |  | 500,000 |
Payments of Guarantees Obligation |  |  | $ 397,200 | $ 53,333 | $ 803,486 | $ 98,000
Area of Land | a |  | 7,457 |  |  |  |
Sub Lease Term |  | 41 months |  |  |  |
Rent Per Share | $ / shares | $ 25.95 | $ 37 |  |  |  |
Prepaid Rent |  | $ 60,249 |  |  |  |
Security Deposit |  | $ 22,992 |  |  |  |
Minimum [Member] |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |
Sub Lease Term |  | 37 months |  |  |  |
Maximum [Member] |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |
Sub Lease Term |  | 41 months |  |  |  |
Fourth Avenue, Seattle [Member] |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |
Area of Land | a |  | 1,500 |  |  |  |

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