SHARE-BASED COMPENSATION - Other Award Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Significant ranges of outstanding and exercisable options [Line Items]
Number of options outstanding	322,937		322,937		329,562
Weighted average remaining contractual life options outstanding			1 year 7 months 6 days
Weighted average exercise price options outstanding	$ 1.88		$ 1.88		$ 1.91
Number of options exercisable	322,937		322,937
Weighted average exercise price options exercisable	$ 1.88		$ 1.88
Recognized Non-Cash Compensation Expense [Line Items]
Total Non cash compensation expense recognized	$ 982	$ 1,006	$ 2,067	$ 1,936
Exercise prices from 1.34 to 1.34
Significant ranges of outstanding and exercisable options [Line Items]
Number of options outstanding	300,437		300,437
Weighted average remaining contractual life options outstanding			1 year 7 months 6 days
Weighted average exercise price options outstanding	$ 1.34		$ 1.34
Number of options exercisable	300,437		300,437
Weighted average exercise price options exercisable	$ 1.34		$ 1.34
Exercise prices from 2.02 to 11.78
Significant ranges of outstanding and exercisable options [Line Items]
Number of options outstanding	22,500		22,500
Weighted average remaining contractual life options outstanding			1 year 2 months 12 days
Weighted average exercise price options outstanding	$ 9.12		$ 9.12
Number of options exercisable	22,500		22,500
Weighted average exercise price options exercisable	$ 9.12		$ 9.12
Station operating expenses [Member]
Recognized Non-Cash Compensation Expense [Line Items]
Total Non cash compensation expense recognized	$ 372	363	$ 577	590
Corporate general and administrative expenses [Member]
Recognized Non-Cash Compensation Expense [Line Items]
Total Non cash compensation expense recognized	1,105	1,174	2,494	2,429
Stock-based compensation expense included in operating expenses [Member]
Recognized Non-Cash Compensation Expense [Line Items]
Total Non cash compensation expense recognized	1,477	1,537	3,071	3,019
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	$ 495	$ 531	$ 1,004	$ 1,083