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v3.7.0.1

Commitments Additional Information (Details) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2016 USD ($) ft² | Mar. 31, 2016 USD ($) ft² | Dec. 31, 2016 USD ($) ft² | Dec. 31, 2016 EUR (€) | Dec. 31, 2015 USD ($)
Operating Leased Assets [Line Items] |  |  |  |  |
Rent expense |  |  | $ 500,000 |  | $ 400,000
Office Space at 810 Seventh Avenue, New York, NY [Member] |  |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |  |
Square footage of office space (in square feet) | ft² |  |  | 8,629 |  |
Expansion option, additional square footage of office space (in square feet) | ft² |  |  | 8,629 |  |
Letter of credit [Abstract] |  |  |  |  |
Minimum letter of credit amount required to be maintained under lease agreement |  |  | $ 881,297 |  |
Expiration date of letter of credit |  |  | Feb. 01, 2017 | Feb. 01, 2017 |
Office Space in New York, NY, Lease Amendment [Member] |  |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |  |
Additional square footage of office space leased under exercise of option right (in square feet) | ft² |  |  | 8,629 |  |
Lease expiration date |  |  | Mar. 31, 2021 | Mar. 31, 2021 |
Office Space in New York, NY, Initial Lease and Lease Amendment [Member] | Year 4 [Member] |  |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |  |
Annual base rent |  |  | $ 996,000 |  |
Office Space in New York, NY, Initial Lease and Lease Amendment [Member] | Year 5 [Member] |  |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |  |
Annual base rent |  |  | 1,000,000 |  |
Office Space in New York, NY, Initial Lease and Lease Amendment [Member] | Years Thereafter [Member] |  |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |  |
Annual base rent |  |  | $ 1,100,000 |  |
Delcath's European Headquarters Lease Agreement [Member] |  |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |  |
Square footage of office space (in square feet) | ft² |  |  | 19,200 |  |
Operating lease term |  |  | 10 years | 10 years |
Delivery time frame of written notice, minimum |  |  | 6 months | 6 months |
Delcath's European Headquarters Lease Agreement [Member] | Year 1 [Member] |  |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |  |
Annual base rent |  |  | $ 115,458 | € 106,051 |
Delcath's European Headquarters Lease Agreement [Member] | Year 2 [Member] |  |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |  |
Annual base rent |  |  | 146,946 | 134,974 |
Delcath's European Headquarters Lease Agreement [Member] | Year 3 [Member] |  |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |  |
Annual base rent |  |  | 173,187 | 159,077 |
Delcath's European Headquarters Lease Agreement [Member] | Year 4 [Member] |  |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |  |
Annual base rent |  |  | 199,427 | 183,179 |
Delcath's European Headquarters Lease Agreement [Member] | Year 5 [Member] |  |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |  |
Annual base rent |  |  | 199,427 | 183,179 |
Delcath's European Headquarters Lease Agreement [Member] | Year 6 Through 10 [Member] |  |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |  |
Annual base rent |  |  | 197,377 | € 187,209 |
Office Space At 1633 Broadway, New York, NY [Member] |  |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |  |
Square footage of office space (in square feet) | ft² |  | 6,877 |  |  |
Annual base rent |  | $ 522,652 |  |  |
Letter of credit [Abstract] |  |  |  |  |
Minimum letter of credit amount required to be maintained under lease agreement |  |  | $ 130,663 |  |
Expiration date of letter of credit |  |  | Mar. 01, 2019 | Mar. 01, 2019 |
Park Road Lease Agreement [Member] |  |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |  |
Square footage of office space (in square feet) | ft² | 6,000 |  |  |  |
Annual base rent | $ 48,223 |  |  |  |
Operating lease term |  |  | 2 years | 2 years |
Lease expiration period |  |  | 2018-10 | 2018-10 |

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- Definition Minimum number of days, prior to expiration of the lease term, that option to purchase notice, on the Facility, must be delivered to the Landlord. + References No definition available. + Details
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