INVESTMENTS: (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Proceeds from sales	$ 250	$ 1,708	$ 753	$ 5,567
Gross realized gains	0	6	0	19
Gross realized losses	$ 0	$ (33)	$ 0	$ (98)