GOODWILL AND INTANGIBLE ASSETS: (Tables)

12 Months Ended

Dec. 31, 2012

GOODWILL AND INTANGIBLE ASSETS:

Schedule of changes in carrying amount of trademarks

	2012			2011
Original cost	$	193,767		$	193,767
Accumulated impairment losses as of January 1	(18,743		)	(18,743		)
Balance at January 1	$	175,024		$	175,024
Current year impairment losses	—			—
Balance at December 31	$	175,024		$	175,024
Accumulated impairment losses as of December 31	$	(18,743	)	$	(18,743	)