ACQUISITIONS, DIVESTITURES AND PRO FORMA SUMMARY (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Acquisition [Line Items]
Payments to Acquire Businesses, Gross	$ 92	$ 83,553	$ 0
Purchase price allocation [Abstract]
Total intangible assets	0	79,209
Property, Plant and Equipment, Gross	187,796	181,861
Property Plant And Equipment Net	63,375	57,993
Depreciation	8,689	7,419	6,748
AssetRetirementObligation	1,044	569	541
The expense recognized in the consolidated statement of income as merger and acquisition costs [Abstract]
Merger and acquisition costs	708	3,978	1,042
Merger and acquisition costs and restructuring charges	708	6,836	1,042
Restructuring Charges	0	2,858	0
Unaudited Pro Forma Summary Of Financial Information
Net revenues	460,245	442,485	437,597
Net income	$ 38,065	$ 33,050	$ 22,736
Net income per common share - basic	$ 0.94	$ 0.81	$ 0.56
Net income per common share - diluted	$ 0.91	$ 0.79	$ 0.55
Net income, available to common shareholders	$ 36,164	$ 30,850	$ 21,086
Acquisition Price Paid Using Convertible Preferred Stock	27,500	27,500
Adjustment [Member]
The expense recognized in the consolidated statement of income as merger and acquisition costs [Abstract]
Restructuring Charges	0	(13)	0
Lease abandonment expense [Member]
The expense recognized in the consolidated statement of income as merger and acquisition costs [Abstract]
Restructuring Charges	0
Lease abandonment expense [Member] | Adjustment [Member]
The expense recognized in the consolidated statement of income as merger and acquisition costs [Abstract]
Restructuring Charges	0	687	0
Cost Of Terminating Contracts [Member]
The expense recognized in the consolidated statement of income as merger and acquisition costs [Abstract]
Restructuring Charges	0
Cost Of Terminating Contracts [Member] | Adjustment [Member]
The expense recognized in the consolidated statement of income as merger and acquisition costs [Abstract]
Restructuring Charges	0	646	0
One Time Termination Expenses [Member]
The expense recognized in the consolidated statement of income as merger and acquisition costs [Abstract]
Restructuring Charges	0
One Time Termination Expenses [Member] | Adjustment [Member]
The expense recognized in the consolidated statement of income as merger and acquisition costs [Abstract]
Restructuring Charges	0	1,538	$ 0
Equipment [Member]
Purchase price allocation [Abstract]
Property, Plant and Equipment, Gross	$ 112,362	108,399
Equipment [Member] | Maximum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	40 years
Equipment [Member] | Minimum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	3 years
Building [Member]
Purchase price allocation [Abstract]
Property, Plant and Equipment, Gross	$ 22,698	22,711
Building [Member] | Maximum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	40 years
Building [Member] | Minimum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	20 years
LFM [Member]
Acquisition [Line Items]
Acquisition price paid from borrowing		42,000
Purchases of radio station assets		(77,500)
Purchase price allocation [Abstract]
Total tangible assets	$ 18,175
Total intangible assets	87,539
Total assets	120,863
Net assets acquired	113,390
Total current assets	15,149
Total current liabilities	4,201
Total liabilities acquired	7,473
The expense recognized in the consolidated statement of income as merger and acquisition costs [Abstract]
Merger and acquisition costs and restructuring charges	$ 708	3,978
Unaudited Pro Forma Summary Of Financial Information
Acquisition Price Paid Using Convertible Preferred Stock		27,500
Aquisition Related Working Capital Reimbursement		11,000
Aquisition Related Working Capital Credit		2,700
Aquisition Purchase Price Total		105,000
Discount Rates	9.60%
LFM [Member] | Cash [Member]
Purchase price allocation [Abstract]
Total current assets	$ 2,246
LFM [Member] | Accounts Receivable [Member]
Purchase price allocation [Abstract]
Total current assets	11,933
LFM [Member] | Prepaid Expenses And Other Current Assets [Member]
Purchase price allocation [Abstract]
Total current assets	$ 970
LFM [Member] | Maximum [Member]
Unaudited Pro Forma Summary Of Financial Information
Fair Value Inputs Long Term Revenue Growth Rate	1.50%
LFM [Member] | Minimum [Member]
Unaudited Pro Forma Summary Of Financial Information
Fair Value Inputs Long Term Revenue Growth Rate	1.00%
LFM [Member] | Unfavorable lease liability [Member]
Purchase price allocation [Abstract]
Total current liabilities	$ 3,272
LFM [Member] | Accrued Liabilities [Member]
Purchase price allocation [Abstract]
Total current liabilities	3,466
LFM [Member] | Accounts Payable [Member]
Purchase price allocation [Abstract]
Total current liabilities	723
LFM [Member] | Liability [Member]
Purchase price allocation [Abstract]
Total current liabilities	12
LFM [Member] | Leasehold improvements [Member]
Purchase price allocation [Abstract]
Total tangible assets	$ 973
LFM [Member] | Leasehold improvements [Member] | Maximum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	11 years
LFM [Member] | Leasehold improvements [Member] | Minimum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	2 years
LFM [Member] | Furniture and equipment [Member]
Purchase price allocation [Abstract]
Total tangible assets	$ 29
LFM [Member] | Furniture and equipment [Member] | Maximum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	5 years
LFM [Member] | Furniture and equipment [Member] | Minimum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	5 years
LFM [Member] | Equipment [Member]
Purchase price allocation [Abstract]
Total tangible assets	$ 8,651
LFM [Member] | Equipment [Member] | Maximum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	40 years
LFM [Member] | Equipment [Member] | Minimum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	3 years
LFM [Member] | Land and Land Improvements [Member]
Purchase price allocation [Abstract]
Total tangible assets	$ 87
LFM [Member] | Land and Land Improvements [Member] | Maximum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	15 years
LFM [Member] | Land and Land Improvements [Member] | Minimum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	15 years
LFM [Member] | Land [Member]
Purchase price allocation [Abstract]
Total tangible assets	$ 7,368
LFM [Member] | Building [Member]
Purchase price allocation [Abstract]
Total tangible assets	$ 1,067
LFM [Member] | Building [Member] | Maximum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	25 years
LFM [Member] | Building [Member] | Minimum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	15 years
LFM [Member] | Radio Broadcasting Licences [Member]
Purchase price allocation [Abstract]
Total intangible assets	$ 79,209
LFM [Member] | Goodwill [Member]
Purchase price allocation [Abstract]
Total intangible assets	4,594
LFM [Member] | Assets Held For Sale [Member]
Purchase price allocation [Abstract]
Total intangible assets	1,885
LFM [Member] | Lease Agreements [Member]
Purchase price allocation [Abstract]
Total intangible assets	$ 487
LFM [Member] | Lease Agreements [Member] | Maximum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	5 years
LFM [Member] | Lease Agreements [Member] | Minimum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	1 year
LFM [Member] | Other Noncurrent Assets [Member]
Purchase price allocation [Abstract]
Total intangible assets	$ 1,364
BonnevilleSwap [Member]
Acquisition [Line Items]
Net time brokerage agreement (income) fees		$ 300
Purchase price allocation [Abstract]
Total tangible assets	1,133
Total intangible assets	53,326
Total assets	59,323
Net assets acquired	$ 59,000
Unaudited Pro Forma Summary Of Financial Information
Fair Value Inputs Long Term Revenue Growth Rate	1.00%
Discount Rates	9.20%
BonnevilleSwap [Member] | Accounts Receivable [Member]
Purchase price allocation [Abstract]
Total current assets	$ 4,864
BonnevilleSwap [Member] | Unfavorable lease liability [Member]
Purchase price allocation [Abstract]
Other long-term liabilities	$ 323
BonnevilleSwap [Member] | Unfavorable lease liability [Member] | Maximum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	4 years
BonnevilleSwap [Member] | Unfavorable lease liability [Member] | Minimum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	1 year
BonnevilleSwap [Member] | Furniture and equipment [Member]
Purchase price allocation [Abstract]
Total tangible assets	$ 121
BonnevilleSwap [Member] | Furniture and equipment [Member] | Maximum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	5 years
BonnevilleSwap [Member] | Furniture and equipment [Member] | Minimum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	5 years
BonnevilleSwap [Member] | Equipment [Member]
Purchase price allocation [Abstract]
Total tangible assets	$ 1,012
BonnevilleSwap [Member] | Equipment [Member] | Maximum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	15 years
BonnevilleSwap [Member] | Equipment [Member] | Minimum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	3 years
BonnevilleSwap [Member] | Radio Broadcasting Licences [Member]
Purchase price allocation [Abstract]
Total intangible assets	$ 53,057
BonnevilleSwap [Member] | Goodwill [Member]
Purchase price allocation [Abstract]
Total intangible assets	266
BonnevilleSwap [Member] | Advertiser lists and customer relationships [Member]
Purchase price allocation [Abstract]
Total intangible assets	$ 1
BonnevilleSwap [Member] | Advertiser lists and customer relationships [Member] | Maximum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	3 years
BonnevilleSwap [Member] | Advertiser lists and customer relationships [Member] | Minimum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	3 years
BonnevilleSwap [Member] | Trademarks [Member]
Purchase price allocation [Abstract]
Total intangible assets	$ 2
BonnevilleSwap [Member] | Trademarks [Member] | Maximum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	5 years
BonnevilleSwap [Member] | Trademarks [Member] | Minimum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	5 years
KOSI [Member]
Unaudited Pro Forma Summary Of Financial Information
Expected gain on sale of station	$ 1,500
KRWZAM [Member]
Unaudited Pro Forma Summary Of Financial Information
Expected gain on sale of station	300
ProceedsFromDivestitureOfBusinesses	3,800
Belinder [Member]
Unaudited Pro Forma Summary Of Financial Information
Expected gain on sale of station	700
Charlotte [Member]
Acquisition [Line Items]
Payments to Acquire Businesses, Gross	24,000
Purchase price allocation [Abstract]
Total assets	24,996
Net assets acquired	24,000
Total liabilities acquired	996
Property, Plant and Equipment, Gross	$ 7,325
Unaudited Pro Forma Summary Of Financial Information
Discount Rates	9.60%
Charlotte [Member] | Maximum [Member]
Unaudited Pro Forma Summary Of Financial Information
Fair Value Inputs Long Term Revenue Growth Rate	1.50%
Charlotte [Member] | Minimum [Member]
Unaudited Pro Forma Summary Of Financial Information
Fair Value Inputs Long Term Revenue Growth Rate	1.00%
Charlotte [Member] | Unfavorable lease liability [Member]
Purchase price allocation [Abstract]
Total current liabilities	$ 735
Charlotte [Member] | OtherNoncurrentLiabilitiesMember
Purchase price allocation [Abstract]
Other long-term liabilities	261
Charlotte [Member] | Equipment [Member]
Purchase price allocation [Abstract]
Total tangible assets	$ 4,569
Charlotte [Member] | Equipment [Member] | Maximum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	40 years
Charlotte [Member] | Equipment [Member] | Minimum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	3 years
Charlotte [Member] | Land [Member]
Purchase price allocation [Abstract]
Total tangible assets	$ 2,539
Charlotte [Member] | Building [Member]
Purchase price allocation [Abstract]
Total tangible assets	$ 217
Charlotte [Member] | Building [Member] | Maximum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	25 years
Charlotte [Member] | Building [Member] | Minimum [Member]
Purchase price allocation [Abstract]
Tangible assets amortization period	15 years
Charlotte [Member] | Radio Broadcasting Licences [Member]
Purchase price allocation [Abstract]
Total intangible assets	$ 17,384
Charlotte [Member] | Other Noncurrent Assets [Member]
Purchase price allocation [Abstract]
Intangible assets non amortizable	287
WQXIAM [Member]
Unaudited Pro Forma Summary Of Financial Information
Expected gain on sale of station	200
ProceedsFromDivestitureOfBusinesses	900
Charlotte VIE [Member]
Purchase price allocation [Abstract]
Total assets	25,139
Total current assets	2,689
Property Plant And Equipment Net	6,346
Charlotte VIE [Member] | Cash [Member]
Purchase price allocation [Abstract]
Total current assets	302
Charlotte VIE [Member] | Accounts Receivable [Member]
Purchase price allocation [Abstract]
Total current assets	2,143
Charlotte VIE [Member] | Prepaid Expenses And Other Current Assets [Member]
Purchase price allocation [Abstract]
Total current assets	244
Charlotte VIE [Member] | Accrued Liabilities [Member]
Purchase price allocation [Abstract]
Total liabilities acquired	1,180
Charlotte VIE [Member] | Non Controlling Interest Variable Interest Entity [Member]
Purchase price allocation [Abstract]
Total liabilities acquired	23,959
Charlotte VIE [Member] | Radio Broadcasting Licences [Member]
Purchase price allocation [Abstract]
Total intangible assets	15,738
Charlotte VIE [Member] | Other Noncurrent Assets [Member]
Purchase price allocation [Abstract]
Total assets	$ 366