Revenue Recognition (Disaggregation of Revenue) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Net revenue	$ 58,183,000	$ 68,062,000
Accounts receivable	200,000	600,000
Contract with customer, liability	2,800,000	2,200,000
Consumer Media
Disaggregation of Revenue [Line Items]
Net revenue	10,301,000	12,581,000
Consumer Media | Business To Business
Disaggregation of Revenue [Line Items]
Net revenue	5,838,000	7,693,000
Consumer Media | Sales Channel, Directly to Consumer
Disaggregation of Revenue [Line Items]
Net revenue	4,463,000	4,888,000
Consumer Media | Software License
Disaggregation of Revenue [Line Items]
Net revenue	5,076,000	5,957,000
Consumer Media | Subscription Services
Disaggregation of Revenue [Line Items]
Net revenue	3,158,000	3,586,000
Consumer Media | Product Sales
Disaggregation of Revenue [Line Items]
Net revenue	1,306,000	1,301,000
Consumer Media | Advertising And Other
Disaggregation of Revenue [Line Items]
Net revenue	761,000	1,737,000
Mobile Services
Disaggregation of Revenue [Line Items]
Net revenue	23,788,000	26,889,000
Mobile Services | Business To Business
Disaggregation of Revenue [Line Items]
Net revenue	23,450,000	26,495,000
Mobile Services | Sales Channel, Directly to Consumer
Disaggregation of Revenue [Line Items]
Net revenue	338,000	394,000
Mobile Services | Software License
Disaggregation of Revenue [Line Items]
Net revenue	6,397,000	5,110,000
Mobile Services | Subscription Services
Disaggregation of Revenue [Line Items]
Net revenue	17,391,000	21,779,000
Mobile Services | Product Sales
Disaggregation of Revenue [Line Items]
Net revenue	0	0
Mobile Services | Advertising And Other
Disaggregation of Revenue [Line Items]
Net revenue	0	0
Games
Disaggregation of Revenue [Line Items]
Net revenue	24,094,000	28,592,000
Games | Business To Business
Disaggregation of Revenue [Line Items]
Net revenue	3,928,000	4,664,000
Games | Sales Channel, Directly to Consumer
Disaggregation of Revenue [Line Items]
Net revenue	20,166,000	23,928,000
Games | Software License
Disaggregation of Revenue [Line Items]
Net revenue	0	0
Games | Subscription Services
Disaggregation of Revenue [Line Items]
Net revenue	9,606,000	10,794,000
Games | Product Sales
Disaggregation of Revenue [Line Items]
Net revenue	11,058,000	13,879,000
Games | Advertising And Other
Disaggregation of Revenue [Line Items]
Net revenue	$ 3,430,000	$ 3,919,000