STOCKHOLDERS' EQUITY: (Details 2) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Shares, Unvested at beginning of year	144,000	2,310,000	393,000
Shares Granted	0	60,000	3,375,000
Shares Vested	(62,000)	(2,203,000)	(1,226,000)
Shares Forfeited/cancelled/expired	0	(23,000)	(232,000)
Shares, Unvested at end of year	82,000	144,000	2,310,000
Average Fair Value at Grant Date, Unvested at beginning of year	$ 1.1	$ 2.92	$ 1.94
Average Fair Value at Grant Date, Grants	$ 0	$ 1.19	$ 3.09
Average Fair Value at Grant Date, Vested	$ 1.09	$ 2.99	$ 3.01
Average Fair Value at Grant Date, Forfeited/cancelled/expired	$ 0	$ 3.17	$ 3.23
Average Fair Value at Grant Date, Unvested at end of year	$ 1.11	$ 1.1	$ 2.92