General form of registration statement for all companies including face-amount certificate companies

Stockholders' deficit, Common Stock (FY) (Details)

v3.20.4
Stockholders' deficit, Common Stock (FY) (Details)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 12 Months Ended
Dec. 19, 2019
USD ($)
$ / shares
shares
May 06, 2019
USD ($)
$ / shares
shares
Mar. 15, 2019
Jan. 08, 2019
USD ($)
shares
Dec. 12, 2018
USD ($)
$ / shares
shares
Dec. 31, 2018
USD ($)
$ / shares
shares
Mar. 31, 2020
shares
Sep. 30, 2019
USD ($)
Jun. 30, 2019
USD ($)
shares
Dec. 31, 2019
USD ($)
$ / shares
shares
Sep. 30, 2020
$ / shares
shares
Jun. 24, 2020
$ / shares
Jun. 23, 2020
$ / shares
Mar. 17, 2020
shares
Nov. 30, 2018
shares
Oct. 29, 2018
USD ($)
Common Stock [Abstract]                                
Common stock, shares authorized (in shares)           16,303,928       88,000,000 200,000,000          
Reverse stock split ratio     0.0385                          
Common stock, shares issued (in shares)           11,661,485       47,977,390 49,139,708          
Common stock, shares outstanding (in shares)           11,661,485       47,977,390 49,139,708          
Units issued in private placement offering (in shares)         1,425,641                      
Number of shares issuable per unit (in shares)         0.50         1.1            
Share price (in dollars per share) | $ / shares         $ 1.95                      
Gross proceeds from private placement offering | $         $ 2,800                      
Share issuance costs | $         100                      
Net proceeds from private placement offering | $       $ 100 $ 2,700 $ 2,600                    
Units issued in private placement offering (in shares)       25,641   1,400,000                    
Warrants, exercise price (in dollars per share) | $ / shares                       $ 4.25 $ 5.00      
Filing period of registration statement following closing date                   60 days            
Acquisitions | $               $ 3,870 $ 2,200 $ 6,071            
Purchase price | $ $ 38,200 $ 146,569                            
Common stock shares issued (in shares)   33,130,806                            
Common stock, par value (in dollars per share) | $ / shares   $ 0.001       $ 0.001       $ 0.001 $ 0.001          
Reserved Shares of Common Stock for Future Issuance [Abstract]                                
Conversion of Series E (in shares)                   1,760,903 1,760,903          
Exercise of options to purchase common stock (in shares)                   7,791,833 7,241,942          
Warrants to purchase common stock (in shares)                   16,981,854 19,898,859          
Notes payable (in shares)                   4,437,500 7,346,568          
Total (in shares)           0       30,972,090 36,248,272          
Halo Acquisition [Member]                                
Common Stock [Abstract]                                
Ownership percentage 100.00%                              
TruPet, LLC [Member]                                
Common Stock [Abstract]                                
Initial ownership interest acquired   93.00%     7.00%                      
Acquisitions (in shares)   1,011,748                            
Acquisitions | $   $ 6,100                            
Common stock shares issued (in shares)   15,027,533                            
Bona Vida, Inc. [Member]                                
Common Stock [Abstract]                                
Share price (in dollars per share) | $ / shares   $ 6.00                            
Initial ownership interest acquired   100.00%                            
Amount of change of control payment | $                               $ 500
Number of shares of common stock to be issued in consideration for change of control payment (in shares)   100,000                            
Purchase price | $   $ 108,620                            
Common stock shares issued (in shares)   18,103,273                            
PIPE Transaction [Member]                                
Common Stock [Abstract]                                
Units issued in private placement offering (in shares)   5,744,991                            
Share price (in dollars per share) | $ / shares   $ 3.00                            
Net proceeds from private placement offering | $   $ 15,700                            
Warrants, exercise price (in dollars per share) | $ / shares   $ 4.25                            
Halo Acquisition [Member]                                
Common Stock [Abstract]                                
Share price (in dollars per share) | $ / shares $ 1.82                              
Initial ownership interest acquired 100.00%                              
Purchase price | $ $ 38,244                              
Common stock shares issued (in shares) 2,134,390                              
Common stock, par value (in dollars per share) | $ / shares $ 0.001                              
Warrant [Member]                                
Common Stock [Abstract]                                
Number of shares issuable per unit (in shares)         0.5           2,560,883     1,003,232 0.5  
Warrants, exercisable period                   2 years   84 months        
Warrants, exercise price (in dollars per share) | $ / shares                   $ 3.90   $ 1.25        
Common Stock [Member]                                
Common Stock [Abstract]                                
Number of shares issuable per unit (in shares)         1                   1  
Net proceeds from private placement offering | $       $ 100   $ 2,600                    
Units issued in private placement offering (in shares)       25,641   1,400,000 308,642     0            
Acquisitions (in shares)                 1,011,748 1,012,000            
Acquisitions | $                 $ 1 $ 1            
Common Stock [Member] | PIPE Transaction [Member]                                
Common Stock [Abstract]                                
Number of shares issuable per unit (in shares)   1