CAPITAL STOCK (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Mar. 17, 2015
Notes to Financial Statements
Fair Value Of Stock Options Granted	$ 309	$ 117
Weighted Average Fair Value of Options	$ 9.00	$ 3.68
Intrinsic Value of Options Exercised	$ 3,100	$ 516
Cash Proceeds from Options Exercised	$ 1,400	$ 889
Fractional Shares of Outstanding Options	$ 8.6
Weighted Average Reamining Contractual Life	0.8
Weighted Average Exercise Price	15.27
Exercise Price Range Low	9.50
Exercise Price Range High	$ 22.50
Unrecognized Compensation Costs of Options	$ 1,000
Weighted Average Period of Unrecognized Cost	1.6
Option Compensation Costs to be Recognized this Year	$ 163
Aggregate Intrinsic Value of Outstanding Options	17,700
Aggregate Intrinsic Value of Exercisable Options	$ 13,200
ESPP share increase		23,418
ESPP shares issued	11,475
Weighted Average Fair Value of Purchase Rights Granted	$ 5.77	$ 2.37
Shares vested by Mr. Wilson	39,000
Shares subject to time-based vesting	55,000
Performance Grant shares issued			52,956
MIP Grant shares issued			24,649