Salem Media Group, Inc. Annual report pursuant to Section 13 and 15(d)

Stock Incentive Plan - Stock Options Outstanding Additional Information (Detail)

Stock Incentive Plan - Stock Options Outstanding Additional Information (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options	1,706,340	1,925,417
Weighted Average Contractual Life Remaining	4 years 2 months 12 days
Weighted Average Exercise Price	$ 2.68
Exercisable Options	968,590
Weighted Average Grant Date Fair Value	$ 3.3
Range of Exercise Prices From $1.00 to $3.00 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Lower Limit	1
Range of Exercise Prices, Upper Limit	$ 3
Options	904,000
Weighted Average Contractual Life Remaining	5 years 4 months 24 days
Weighted Average Exercise Price	$ 1.63
Exercisable Options	266,250
Weighted Average Grant Date Fair Value	$ 1.54
Range of Exercise Prices From $3.01 to $3.28 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Lower Limit	3.01
Range of Exercise Prices, Upper Limit	$ 3.28
Options	455,587
Weighted Average Contractual Life Remaining	3 years 10 months 24 days
Weighted Average Exercise Price	$ 3.25
Exercisable Options	355,587
Weighted Average Grant Date Fair Value	$ 3.25
Range of Exercise Prices From $3.29 to $4.63 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Lower Limit	3.29
Range of Exercise Prices, Upper Limit	$ 4.63
Options	63,500
Weighted Average Contractual Life Remaining	2 years 8 months 12 days
Weighted Average Exercise Price	$ 3.77
Exercisable Options	63,500
Weighted Average Grant Date Fair Value	$ 3.77
Range of Exercise Prices From $4.64 to $6.65 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Lower Limit	4.64
Range of Exercise Prices, Upper Limit	$ 6.65
Options	278,753
Weighted Average Contractual Life Remaining	1 year 1 month 6 days
Weighted Average Exercise Price	$ 4.85
Exercisable Options	278,753
Weighted Average Grant Date Fair Value	$ 4.85
Range of Exercise Prices From $6.66 to $8.76 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Lower Limit	6.66
Range of Exercise Prices, Upper Limit	$ 8.76
Options	4,500
Weighted Average Contractual Life Remaining	4 months 24 days
Weighted Average Exercise Price	$ 8.49
Exercisable Options	4,500
Weighted Average Grant Date Fair Value	$ 8.49