RESTATEMENT OF PREVIOUSLY ISSUED FINANCIAL STATEMENTS (FY) (Tables)
 12 Months Ended
Dec. 31, 2020
RESTATEMENT OF PREVIOUSLY ISSUED FINANCIAL STATEMENTS [Abstract]  
Accounting for Warrants
  
As Previously
Reported
  
Adjustments
  
As Restated
 
Balance sheet as of August 12, 2019 (audited)
         
Total Liabilities
 
$
9,194,592
  
$
17,905,000
  
$
27,099,592
 
Class A Ordinary Shares Subject to Possible Redemption
  
237,606,630
   
(17,905,000
)
  
219,701,630
 
Class A Ordinary Shares
  
124
   
179
   
303
 
Additional Paid-in Capital
  
5,004,165
   
910,412
   
5,914,577
 
Accumulated Deficit
  
(5,000
)
  
(910,591
)
  
(915,591
)
             
Balance sheet as of September 30, 2019 (unaudited)
            
Total Liabilities
 
$
8,826,397
  
$
18,365,000
  
$
27,191,397
 
Class A Ordinary Shares Subject to Possible Redemption
  
238,159,760
   
(18,365,000
)
  
219,794,760
 
Class A Ordinary Shares
  
125
   
183
   
308
 
Additional Paid-in Capital
  
4,451,128
   
1,370,408
   
5,821,536
 
(Accumulated Deficit) Retained Earnings
  
548,123
   
(1,370,591
)
  
(822,468
)
             
Balance sheet as of December 31, 2019 (audited)
            
Total Liabilities
 
$
8,846,895
  
$
13,260,000
  
$
22,106,895
 
Class A Ordinary Shares Subject to Possible Redemption
  
239,229,796
   
(13,260,000
)
  
225,969,796
 
Class A Ordinary Shares
  
126
   
132
   
258
 
Additional Paid-in Capital
  
3,381,091
   
(3,381,091
)
  —
(Accumulated Deficit) Retained Earnings
  
1,618,159
   
3,380,959
   
4,999,118
 
             
Balance sheet as of March 31, 2020 (unaudited)
            
Total Liabilities
 
$
9,163,720
  
$
13,065,000
  
$
22,228,720
 
Class A Ordinary Shares Subject to Possible Redemption
  
240,856,900
   
(13,065,000
)
  
227,791,900
 
Class A Ordinary Shares
  
129
   
129
   
258
 
Additional Paid-in Capital
  
1,753,984
   
(1,753,984
)
  
—

(Accumulated Deficit) Retained Earnings
  
3,245,266
   
1,753,855
   
4,999,121
 
             
Balance sheet as of June 30, 2020 (unaudited)
            
Total Liabilities
 
$
9,187,458
  
$
16,050,000
  
$
25,237,458
 
Class A Ordinary Shares Subject to Possible Redemption
  
240,695,088
   
(16,050,000
)
  
224,645,088
 
Class A Ordinary Shares
  
132
   
158
   
290
 
Additional Paid-in Capital
  
1,915,793
   
(591,117
)
  
1,324,676
 
(Accumulated Deficit) Retained Earnings
  
3,083,457
   590,959   
3,674,416
 
             
Balance sheet as of September 30, 2020 (unaudited)
            
Total Liabilities
 
$
9,247,425
  
$
17,355,000
  
$
26,602,425
 
Class A Ordinary Shares Subject to Possible Redemption
  
240,581,127
   
(17,355,000
)
  
223,226,127
 
Class A Ordinary Shares
  
133
   
171
   
304
 
Additional Paid-in Capital
  
2,029,753
   713,870   
2,743,623
 
(Accumulated Deficit) Retained Earnings
  
2,969,497
   
(714,041
)
  
2,255,456
 
             
Balance sheet as of December 31, 2020 (audited)
            
Total Liabilities
 
$
11,902,970
  
$
63,680,000
  
$
75,582,970
 
Class A Ordinary Shares Subject to Possible Redemption
  
237,628,272
   
(63,679,999
)
  
173,948,273
 
Class A Ordinary Shares
  
163
   
626
   
789
 
Additional Paid-in Capital
  
4,982,578
   
47,038,414
   
52,020,992
 
(Accumulated Deficit) Retained Earnings
  
16,638
   
(47,039,041
)
  
(47,022,403
)
             
Three months ended September 30, 2019 (unaudited)
            
Net loss
 
$
553,123
  
$
(1,370,591
)
 
$
(817,468
)
Weighted average shares outstanding of redeemable ordinary shares
  
—
   
21,970,163
   
21,970,163
 
Basic and diluted net loss per share, ordinary shares subject to redemption
  
—
  
$
0.03
  
$
0.03
 
Weighted average shares outstanding of ordinary shares
  
6,910,082
   
953,636
   
7,863,718
 
Basic and diluted net loss per share, ordinary shares
 
$
(0.01
)
 
$
(0.18
)
 
$
(0.19
)
             
Nine months ended September 30, 2019 (unaudited)
            
Net (loss) income
 
$
548,123
  
$
(1,370,591
)
 
$
(822,468
)

  
As Previously
Reported
  
Adjustments
  
As Restated
 
Weighted average shares outstanding of redeemable ordinary shares
  
—
   
21,970,163
   
21,970,163
 
Basic and diluted net loss per share, ordinary shares subject to redemption
  
—
  
$
0.03
  
$
0.03
 
Weighted average shares outstanding of ordinary shares
  
6,792,210
   
783,344
   
7,575,554
 
Basic and diluted net loss per share, ordinary shares
 
$
(0.02
)
 
$
(0.17
)
 
$
(0.19
)
             
Year ended December 31, 2019 (audited)
            
Net income
 
$
1,618,159
  
$
3,734,409
  
$
5,352,568
 
Weighted average shares outstanding of redeemable ordinary shares
  
23,754,184
   
(1,817,232
)
  
21,936,952
 
Basic and diluted earnings per share, ordinary shares subject to redemption
 
$
0.08
   
—
  
$
0.08
 
Weighted average shares outstanding of ordinary shares
  
7,111,079
   
1,256,028
   
8,367,106
 
Basic and diluted net loss per share, ordinary shares
 
$
(0.03
)
 
$
0.45
  
$
0.42
 
             
Three months ended March 31, 2020 (unaudited)
            
Net income
 
$
1,627,107
  
$
195,000
  
$
1,822,107
 
Weighted average shares outstanding of redeemable ordinary shares
  
—
   
22,424,313
   
22,424,313
 
Basic and diluted earnings per share, ordinary shares subject to redemption
  
—
  
$
0.09
  
$
0.09
 
Weighted average shares outstanding of ordinary shares
  
7,509,819
   
1,315,868
   
8,825,687
 
Basic and diluted net loss per share, ordinary shares
 
$
(0.05
)
 
$
0.03
  
$
(0.02
)
             
Three months ended June 30, 2020 (unaudited)
            
Net loss
 
$
(161,809
)
 
$
(2,985,000
)
 
$
(3,146,809
)
Weighted average shares outstanding of redeemable ordinary shares
  
—
   
22,419,605
   
22,419,605
 
Weighted average shares outstanding of ordinary shares
  
7,544,519
   
1,285,876
   
8,830,395
 
Basic and diluted net loss per share, ordinary shares
 
$
(0.03
)
 
$
(0.33
)
 
$
(0.36
)
             
Six months ended June 30, 2020 (unaudited)
            
Net (loss) income
 
$
1,465,298
  
$
(2,790,000
)
 
$
(1,324,702
)
Weighted average shares outstanding of redeemable ordinary shares
  
—
   
22,421,959
   
22,421,959
 
Basic and diluted earnings per share, ordinary shares subject to redemption
  
—
  
$
0.09
  
$
0.09
 
Weighted average shares outstanding of ordinary shares
  
7,527,169
   
1,300,872
   
8,828,041
 
Basic and diluted net loss per share, ordinary shares
 
$
(0.08
)
 
$
(0.30
)
 
$
(0.38
)
             
Three months ended September 30, 2020 (unaudited)
            
Net loss
 
$
(113,960
)
 
$
(1,305,000
)
 
$
(1,418,960
)
Weighted average shares outstanding of redeemable ordinary shares
  
—
   
22,104,581
   
22,104,581
 
Weighted average shares outstanding of ordinary shares
  
7,566,134
   
1,579,285
   
9,145,419
 
Basic and diluted net loss per share, ordinary shares
 
$
(0.02
)
 
$
(0.14
)
 
$
(0.16
)
             
Nine months ended September 30, 2020 (unaudited)
            
Net (loss) income
 
$
1,351,338
  
$
(4,095,000
)
 
$
(2,743,662
)
Weighted average shares outstanding of redeemable ordinary shares
  
—
   
22,315,394
   
22,315,394
 
Basic and diluted earnings per share, ordinary shares subject to redemption
  
—
  
$
0.09
  
$
0.09
 
Weighted average shares outstanding of ordinary shares
  
7,538,169
   
1,396,437
   
8,934,606
 
Basic and diluted net loss per share, ordinary shares
 
$
(0.10
)
 
$
(0.44
)
 
$
(0.54
)

  
As Previously
Reported
  
Adjustments
  
As Restated
 
Year ended December 31, 2020 (audited)
         
Net loss
 
$
(1,601,521
)
 
$
(50,420,000
)
 
$
(52,021,521
)
Weighted average shares outstanding of redeemable ordinary shares
  
23,699,368
   
(1,473,041
)
  
22,226,328
 
Basic and diluted earnings per share, ordinary shares subject to redemption
 
$
0.07
   
—
  
$
0.07
 
Weighted average shares outstanding of ordinary shares
  
7,550,632
   
1,473,041
   
9,023,672
 
Basic and diluted net loss per share, ordinary shares
 
$
(0.42
)
 
$
(5.52
)
 
$
(5.94
)
             
Statement of cash flows for the period from June 7, 2019 (inception) through September 30, 2019 (unaudited)
            
Net (loss) income
 
$
548,123
  
$
(1,370,591
)
 
$
(822,468
)
Adjustments to reconcile net loss to net cash used in operating activities:
            
Change in fair value of warrant liability
  
—
   
(460,000
)
  
(460,000
)
Compensation expense
  
—
   
(280,000
)
  
(280,000
)
Transaction costs
  
—
   
(630,591
)
  
(630,591
)
             
Statement of cash flows year ended December 31, 2019 (audited)
            
Net income
 
$
1,618,159
  
$
3,734,409
  
$
5,352,568
 
Adjustments to reconcile net loss to net cash used in operating activities:
            
Change in fair value of warrant liability
  
—
   
4,645,000
   
4,645,000
 
Compensation expense
  
—
   
(280,000
)
  
(280,000
)
Transaction costs
  
—
   
(630,591
)
  
(630,591
)
             
Statement of cash flows three months ended March 31, 2020 (unaudited)
            
Net income
 
$
1,627,107
  
$
195,000
  
$
1,822,107
 
Adjustments to reconcile net loss to net cash used in operating activities:
            
Change in fair value of warrant liability
  
—
   
195,000
   
195,000
 
             
Statement of cash flows six months ended June 30, 2020 (unaudited)
            
Net (loss) income
 
$
1,465,298
  
$
(2,790,000
)
 
$
(1,324,702
)
Adjustments to reconcile net loss to net cash used in operating activities:
            
Change in fair value of warrant liability
  
—
   
(2,790,000
)
  
(2,790,000
)
             
Statement of cash flows nine months ended September 30, 2020 (unaudited)
            
Net (loss) income
 
$
1,351,338
  
$
(4,095,000
)
 
$
(2,743,662
)
Adjustments to reconcile net loss to net cash used in operating activities:
            
Change in fair value of warrant liability
  
—
   
(4,095,000
)
  
(4,095,000
)
             
Statement of cash flows year ended December 31, 2020 (audited)
            
Net loss
 
$
(1,601,521
)
 
$
(50,420,000
)
 
$
(52,021,521
)
Adjustments to reconcile net loss to net cash used in operating activities:
            
Change in fair value of warrant liability
  
—
   
(50,420,000
)
  
(50,420,000
)