Commitments and contingencies - Agreement with Digital Energy Corp. (Details) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2019 |
Mar. 31, 2019 |
|
| Loss Contingencies [Line Items] | ||
| Guarantee liability | $ 112,311 | $ 350,000 |
| Shortfall payments | 319,649 | |
| Provision | 81,960 | |
| Eurosite Power Inc. | ||
| Loss Contingencies [Line Items] | ||
| Guarantee of obligations of EuroSite Power Inc. | 138,000 | |
| Guarantee liability | $ 7,000 |
| X | ||||||||||
- Definition Guarantor Obligations, Provision No definition available.
|
| X | ||||||||||
- Definition Guarantor Obligations, Shortfall Payments No definition available.
|
| X | ||||||||||
- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Fair value portion of guarantee, including, but not limited to, financial standby letter of credit, fair value guarantee, guarantee of collection of scheduled contractual cash flows from financial assets, and contracts that contingently require the guarantor to make payments or perform services. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| 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. No definition available.
|
| X | ||||||||||
- Details
|