Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition - Reconciliation of Revenue from Segments to Consolidated (Detail)

v3.22.1
Revenue Recognition - Reconciliation of Revenue from Segments to Consolidated (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Disaggregation of Revenue [Line Items]    
Revenue, Net $ 62,609 $ 59,353
Broadcast programming Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 19,232 17,417
Broadcast Advertising Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 18,755 17,426
Other Broadcast Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 2,239 2,136
Digital Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 18,506 16,750
Publishing Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 3,877 5,624
Block Programming – National [Member] | Broadcast programming Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 13,059 11,461
Block Programming – Local [Member] | Broadcast programming Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 6,173 5,956
Spot Advertising – National [Member] | Broadcast Advertising Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 3,641 3,660
Spot Advertising – Local [Member] | Broadcast Advertising Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 10,283 8,895
Network Advertising [Member] | Broadcast Advertising Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 4,831 4,871
Infomercials [Member] | Other Broadcast Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 191 237
Other Revenue [Member] | Other Broadcast Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 2,048 1,899
Digital Advertising [Member] | Digital Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 11,175 10,256
Digital Streaming [Member] | Digital Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 2,091 1,697
Self-Publishing fees [Member] | Publishing Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 1,727 1,624
Other Digital Revenue [Member] | Digital Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 124 168
Digital downloads [Member] | Digital Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 1,707 1,570
Digital subscriptions [Member] | Digital Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 3,409 3,059
Rental Income [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net   623
Rental Income [Member] | Timing Of Revenue Recognition [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 605  
Estimated Sales Returns And Allowances [Member] | Publishing Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net (835) (1,093)
Net Book Sales [Member] | Publishing Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 1,726 3,208
E Book Sales [Member] | Publishing Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 287 339
Publishing Magazine Subscriptions [Member] | Publishing Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net   158
Other Publishing Revenue [Member] | Publishing Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 137 295
Book Sales [Member] | Publishing Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 2,561 4,301
Transferred at Point in Time [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net   58,730
Transferred at Point in Time [Member] | Timing Of Revenue Recognition [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 62,003  
Broadcast [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 48,432 44,048
Broadcast [Member] | Broadcast programming Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 19,232 17,417
Broadcast [Member] | Broadcast Advertising Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 18,755 17,426
Broadcast [Member] | Other Broadcast Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 2,239 2,136
Broadcast [Member] | Digital Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 8,206 7,069
Broadcast [Member] | Publishing Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 0  
Broadcast [Member] | Block Programming – National [Member] | Broadcast programming Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 13,059 11,461
Broadcast [Member] | Block Programming – Local [Member] | Broadcast programming Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 6,173 5,956
Broadcast [Member] | Spot Advertising – National [Member] | Broadcast Advertising Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 3,641 3,660
Broadcast [Member] | Spot Advertising – Local [Member] | Broadcast Advertising Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 10,283 8,895
Broadcast [Member] | Network Advertising [Member] | Broadcast Advertising Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 4,831 4,871
Broadcast [Member] | Infomercials [Member] | Other Broadcast Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 191 237
Broadcast [Member] | Other Revenue [Member] | Other Broadcast Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 2,048 1,899
Broadcast [Member] | Digital Advertising [Member] | Digital Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 6,636 5,781
Broadcast [Member] | Digital Streaming [Member] | Digital Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 1,190 853
Broadcast [Member] | Self-Publishing fees [Member] | Publishing Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 0  
Broadcast [Member] | Other Digital Revenue [Member] | Digital Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 80 89
Broadcast [Member] | Digital downloads [Member] | Digital Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 43 60
Broadcast [Member] | Digital subscriptions [Member] | Digital Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 257 286
Broadcast [Member] | Rental Income [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net   623
Broadcast [Member] | Rental Income [Member] | Timing Of Revenue Recognition [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 605  
Broadcast [Member] | Other Publishing Revenue [Member] | Publishing Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 0  
Broadcast [Member] | Transferred at Point in Time [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net   43,425
Broadcast [Member] | Transferred at Point in Time [Member] | Timing Of Revenue Recognition [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 47,827  
Digital [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 10,300 9,619
Digital [Member] | Digital Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 10,300 9,619
Digital [Member] | Publishing Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 0  
Digital [Member] | Digital Advertising [Member] | Digital Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 4,539 4,413
Digital [Member] | Digital Streaming [Member] | Digital Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 901 844
Digital [Member] | Self-Publishing fees [Member] | Publishing Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 0  
Digital [Member] | Other Digital Revenue [Member] | Digital Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 44 79
Digital [Member] | Digital downloads [Member] | Digital Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 1,664 1,510
Digital [Member] | Digital subscriptions [Member] | Digital Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 3,152 2,773
Digital [Member] | Rental Income [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net   0
Digital [Member] | Rental Income [Member] | Timing Of Revenue Recognition [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 0  
Digital [Member] | Estimated Sales Returns And Allowances [Member] | Publishing Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 0  
Digital [Member] | Net Book Sales [Member] | Publishing Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 0  
Digital [Member] | E Book Sales [Member] | Publishing Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 0  
Digital [Member] | Other Publishing Revenue [Member] | Publishing Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 0  
Digital [Member] | Transferred at Point in Time [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net   9,619
Digital [Member] | Transferred at Point in Time [Member] | Timing Of Revenue Recognition [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 10,300  
Publishing [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 3,877 5,686
Publishing [Member] | Digital Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 0 62
Publishing [Member] | Publishing Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 3,877 5,624
Publishing [Member] | Digital Advertising [Member] | Digital Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 0 62
Publishing [Member] | Digital Streaming [Member] | Digital Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 0  
Publishing [Member] | Self-Publishing fees [Member] | Publishing Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 1,727 1,624
Publishing [Member] | Other Digital Revenue [Member] | Digital Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 0  
Publishing [Member] | Digital downloads [Member] | Digital Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 0  
Publishing [Member] | Digital subscriptions [Member] | Digital Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 0  
Publishing [Member] | Rental Income [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net   0
Publishing [Member] | Rental Income [Member] | Timing Of Revenue Recognition [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 0  
Publishing [Member] | Estimated Sales Returns And Allowances [Member] | Publishing Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net (835) (1,093)
Publishing [Member] | Net Book Sales [Member] | Publishing Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 1,726 3,208
Publishing [Member] | E Book Sales [Member] | Publishing Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 287 339
Publishing [Member] | Publishing Magazine Subscriptions [Member] | Publishing Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net   158
Publishing [Member] | Other Publishing Revenue [Member] | Publishing Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 137 295
Publishing [Member] | Book Sales [Member] | Publishing Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 2,561 4,301
Publishing [Member] | Transferred at Point in Time [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net   $ 5,686
Publishing [Member] | Transferred at Point in Time [Member] | Timing Of Revenue Recognition [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net $ 3,877