Fair value measurements (Narrative) (Details) - shares |
1 Months Ended | 9 Months Ended |
|---|---|---|
Jun. 27, 2019 |
Sep. 30, 2019 |
|
| Fair Value Disclosures [Abstract] | ||
| Conversion of notes into shares | 1,813,500 | 1,813,500 |
| X | ||||||||||
- Definition The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|