COMMITMENTS AND CONTINGENCIES: (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended			3 Months Ended		6 Months Ended
	Dec. 31, 2010	Dec. 31, 2009	Jun. 30, 2013 Standby Letters Of Credit [Member]	Jun. 30, 2013 Music License Agreements [Member]	Jun. 30, 2012 Music License Agreements [Member]	Jun. 30, 2013 Music License Agreements [Member]	Jun. 30, 2012 Music License Agreements [Member]
Percentage Of Provisional Discount On Music Licensing Fee	11.00%	7.00%
License Costs Continuing Operations				$ 2.5	$ 2.6	$ 4.8	$ 5.4
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability			$ 1.0