STOCK-BASED COMPENSATION (Details - RSA & RSU Rollforwards)	9 Months Ended
	Sep. 30, 2015 $ / shares shares
RSUs
Nonvested RSUs and Restricted Stock, Number of Shares
Nonvested at the beginning of the period (in shares)	351,801
Granted (in shares)	94,310
Vested (in shares)	(176,914)
Forfeited (in shares)	(27,788)
Nonvested at the end of the period (in shares)	241,409
Nonvested RSUs and Restricted Stock, Weighted Average Grant Date Fair Value
Nonvested at the beginning of the period (in dollars per share) | $ / shares	$ 22.83
Granted (in dollars per share) | $ / shares	65.57
Vested (in dollars per share) | $ / shares	20.31
Forfeited (in dollars per share) | $ / shares	32.37
Nonvested at the end of the period (in dollars per share) | $ / shares	$ 40.29
Restricted stock
Nonvested RSUs and Restricted Stock, Number of Shares
Nonvested at the beginning of the period (in shares)	123,057
Granted (in shares)	0
Vested (in shares)	(35,295)
Nonvested at the end of the period (in shares)	87,762
Nonvested RSUs and Restricted Stock, Weighted Average Grant Date Fair Value
Nonvested at the beginning of the period (in dollars per share) | $ / shares	$ 23.41
Granted (in dollars per share) | $ / shares	0.00
Vested (in dollars per share) | $ / shares	20.62
Nonvested at the end of the period (in dollars per share) | $ / shares	$ 24.54