SHARE-BASED COMPENSATION - Other Award Information (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Significant ranges of outstanding and exercisable options [Line Items]
Number of options outstanding	486,675	557,550
Weighted average remaining contractual life options outstanding	4 years 1 month 6 days
Weighted average exercise price options outstanding	$ 2.11	$ 2.58
Number of options exercisable	482,925
Weighted average exercise price options exercisable	$ 2.06
Recognized Non-Cash Compensation Expense [Line Items]
Total Non cash compensation expense recognized	$ 3,730	$ 3,190	$ 4,214
The amount of the Company's windfall tax benefit account	2,648	2,136
Station operating expenses [Member]
Recognized Non-Cash Compensation Expense [Line Items]
Total Non cash compensation expense recognized	919	766	584
Corporate general and administrative expenses [Member]
Recognized Non-Cash Compensation Expense [Line Items]
Total Non cash compensation expense recognized	4,313	3,504	5,170
Stock-based compensation expense included in operating expenses [Member]
Recognized Non-Cash Compensation Expense [Line Items]
Total Non cash compensation expense recognized	5,232	4,270	5,754
Income tax benefit (net of a fully reserved valuation allowance for prior year) [Member]
Recognized Non-Cash Compensation Expense [Line Items]
Total Non cash compensation expense recognized	$ 1,502	$ 1,080	$ 1,540
Exercise prices from 1.34 to 1.34
Significant ranges of outstanding and exercisable options [Line Items]
Number of options outstanding	440,675
Weighted average remaining contractual life options outstanding	4 years 1 month 6 days
Weighted average exercise price options outstanding	$ 1.34
Number of options exercisable	440,675
Weighted average exercise price options exercisable	$ 1.34
Exercise prices from 2.02 to 11.78
Significant ranges of outstanding and exercisable options [Line Items]
Number of options outstanding	45,000
Weighted average remaining contractual life options outstanding	4 years 3 months 18 days
Weighted average exercise price options outstanding	$ 9
Number of options exercisable	41,250
Weighted average exercise price options exercisable	$ 9.02
Exercise prices from 33.90 to 33.90
Significant ranges of outstanding and exercisable options [Line Items]
Number of options outstanding	1,000
Weighted average remaining contractual life options outstanding	0 years 2 months 12 days
Weighted average exercise price options outstanding	$ 33.9
Number of options exercisable	1,000
Weighted average exercise price options exercisable	$ 33.9