Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.1
Revenue Recognition - Reconciliation of Revenue from Segments to Consolidated (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Disaggregation of Revenue [Line Items]    
Revenue, Net $ 58,250 $ 60,469
Block Programming National [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 12,034 12,233
Block Programming Local [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 6,808 7,910
Spot Advertising - National [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 3,957 3,900
Spot Advertising - Local [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 11,357 12,062
Infomercials [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 308 390
Network [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 4,388 4,306
Digital Advertising [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 8,138 7,754
Digital Streaming [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 1,523 1,172
Digital Downloads and eBooks [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 1,499 1,437
Subscriptions [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 2,594 2,559
Book Sales and e-commerce, net of estimated sales returns and allowances [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 1,827 2,288
Self-Publishing Fees [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 1,402 1,477
Print Advertising [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 103 137
Other Revenues [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 2,312 2,844
Transferred at Point in Time [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 57,633 59,833
Rental Income [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 617 636
Broadcast [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 45,180 46,093
Broadcast [Member] | Block Programming National [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 12,034 12,233
Broadcast [Member] | Block Programming Local [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 6,808 7,910
Broadcast [Member] | Spot Advertising - National [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 3,957 3,900
Broadcast [Member] | Spot Advertising - Local [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 11,357 12,062
Broadcast [Member] | Infomercials [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 308 390
Broadcast [Member] | Network [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 4,388 4,306
Broadcast [Member] | Digital Advertising [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 3,326 2,352
Broadcast [Member] | Digital Streaming [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 608 161
Broadcast [Member] | Subscriptions [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 282 274
Broadcast [Member] | Book Sales and e-commerce, net of estimated sales returns and allowances [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 76 37
Broadcast [Member] | Print Advertising [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 1 2
Broadcast [Member] | Other Revenues [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 2,035 2,466
Broadcast [Member] | Transferred at Point in Time [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 44,563 45,472
Broadcast [Member] | Rental Income [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 617 621
Digital [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 9,104 10,240
Digital [Member] | Digital Advertising [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 4,713 5,317
Digital [Member] | Digital Streaming [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 915 1,011
Digital [Member] | Digital Downloads and eBooks [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 1,245 1,275
Digital [Member] | Subscriptions [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 2,135 2,084
Digital [Member] | Book Sales and e-commerce, net of estimated sales returns and allowances [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 28 410
Digital [Member] | Other Revenues [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 68 143
Digital [Member] | Transferred at Point in Time [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 9,104 10,225
Digital [Member] | Rental Income [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net   15
Publishing [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 3,966 4,136
Publishing [Member] | Digital Advertising [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 99 85
Publishing [Member] | Digital Downloads and eBooks [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 254 162
Publishing [Member] | Subscriptions [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 177 201
Publishing [Member] | Book Sales and e-commerce, net of estimated sales returns and allowances [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 1,723 1,841
Publishing [Member] | Self-Publishing Fees [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 1,402 1,477
Publishing [Member] | Print Advertising [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 102 135
Publishing [Member] | Other Revenues [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net 209 235
Publishing [Member] | Transferred at Point in Time [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Net $ 3,966 $ 4,136