Quarterly report pursuant to Section 13 or 15(d)

Segment Data - Schedule of Segment Data (Detail)

v3.21.1
Segment Data - Schedule of Segment Data (Detail) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Depreciation $ 2,589 $ 2,713    
Amortization 581 987    
Change in the estimated fair value of contingent earn-out consideration   (5)    
Impairment of indefinite-lived long-term assets other than goodwill   17,254    
Impairment of goodwill 0 307 $ 307  
Net (gain) loss on the disposition of assets (318) (79)    
Net operating income (loss) 4,356 (18,010)    
Inventories, net 495      
Property and equipment, net 78,598   79,122  
Broadcast licenses 319,773   319,773 $ 337,858
Goodwill 23,757   23,757 $ 23,998
Operating Segments [Member]        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Net revenue 59,353 58,250    
Operating expenses 51,509 54,925    
Net operating income (loss) before depreciation, amortization, change in the estimated fair value of contingent earn-out consideration and net (gain) loss on the disposition of assets 7,844 3,325    
Depreciation 2,589 2,713    
Amortization 581 987    
Change in the estimated fair value of contingent earn-out consideration   (5)    
Impairment of indefinite-lived long-term assets other than goodwill   17,254    
Impairment of goodwill   307    
Net (gain) loss on the disposition of assets 318 79    
Net operating income (loss) 4,356 (18,010)    
Inventories, net 588 495 495  
Property and equipment, net 78,598   79,122  
Broadcast licenses 319,773   319,773  
Goodwill 23,757   23,757  
Amortizable intangible assets, net 3,563   4,017  
Operating Segments [Member] | Broadcast [Member]        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Net revenue 44,048 45,180    
Operating expenses 33,343 37,327    
Net operating income (loss) before depreciation, amortization, change in the estimated fair value of contingent earn-out consideration and net (gain) loss on the disposition of assets 10,705 7,853    
Depreciation 1,525 1,645    
Amortization 4 9    
Impairment of indefinite-lived long-term assets other than goodwill   16,994    
Impairment of goodwill   184    
Net (gain) loss on the disposition of assets 318 79    
Net operating income (loss) 8,858 (11,058)    
Property and equipment, net 63,671   64,231  
Broadcast licenses 319,773   319,773  
Goodwill 2,746   2,746  
Amortizable intangible assets, net 242   246  
Operating Segments [Member] | Digital Media [Member]        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Net revenue 9,619 9,104    
Operating expenses 8,673 8,326    
Net operating income (loss) before depreciation, amortization, change in the estimated fair value of contingent earn-out consideration and net (gain) loss on the disposition of assets 946 778    
Depreciation 781 771    
Amortization 432 768    
Change in the estimated fair value of contingent earn-out consideration   (5)    
Impairment of goodwill   10    
Net operating income (loss) (267) (766)    
Property and equipment, net 5,977   6,221  
Goodwill 19,565   19,565  
Amortizable intangible assets, net 3,129   3,434  
Operating Segments [Member] | Publishing [Member]        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Net revenue 5,686 3,966    
Operating expenses 5,205 5,062    
Net operating income (loss) before depreciation, amortization, change in the estimated fair value of contingent earn-out consideration and net (gain) loss on the disposition of assets 481 (1,096)    
Depreciation 47 69    
Amortization 145 210    
Impairment of indefinite-lived long-term assets other than goodwill   260    
Impairment of goodwill   105    
Net operating income (loss) 289 (1,740)    
Inventories, net 588 495 495  
Property and equipment, net 732   741  
Goodwill 1,446   1,446  
Amortizable intangible assets, net 192   337  
Operating Segments [Member] | Unallocated Corporate [Member]        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Operating expenses 4,288 4,210    
Net operating income (loss) before depreciation, amortization, change in the estimated fair value of contingent earn-out consideration and net (gain) loss on the disposition of assets (4,288) (4,210)    
Depreciation 236 228    
Impairment of goodwill   8    
Net operating income (loss) (4,524) $ (4,446)    
Property and equipment, net $ 8,218   $ 7,929