SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Stock Option Plans
Balance at Beginning	652,179
Granted	6,200
Exercised	(5,885)
Expired	(258,648)
Forfeited	(10,276)
Balance at End	383,750
Vested and expected to vest	347,483
Exercisable	262,137
Weighted Average Exercise Price
Balance at Beginning	$ 21.30
Granted	$ 18.82
Exercised	$ 12.28
Expired	$ 27.56
Forfeited	$ 13.16
Balance at End	$ 17.39
Vested and expected to vest	$ 17.81
Exercisable	$ 19.11
Weighted Average Remaining Contractual Term
Balance at End	5 years 11 months 27 days
Vested and Expected to Vest	5 years 11 months 27 days
Exercisable	5 years 1 month 6 days
Aggregate Intrinsic Value
Balance at End	$ 526
Vested and expected to vest	696
Exercisable	$ 71