PRIVATE PLACEMENT (FY) (Details) - Private Placement Warrants [Member] - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Aug. 12, 2019 |
Dec. 31, 2020 |
Mar. 31, 2021 |
|
| Private Placement [Abstract] | |||
| Warrants issued (in shares) | 7,000,000 | 7,000,000 | |
| Share price (in dollars per share) | $ 1.00 | ||
| Proceeds from private placement of warrants | $ 7,000,000 | ||
| Class A Ordinary Shares [Member] | |||
| Private Placement [Abstract] | |||
| Number of ordinary shares called by each warrant (in shares) | 1 | 1 | |
| Exercise price of warrant (in dollars per share) | $ 11.50 | $ 11.50 |