STOCKHOLDERS' EQUITY (Details) (USD $)	1 Months Ended	3 Months Ended
	Jan. 31, 2012	Mar. 31, 2012 D multiplier
STOCKHOLDERS' EQUITY
Number of preferred share purchase rights declared as dividend distributions for each outstanding share of common stock	1
Fraction of share of junior participating preferred stock that could be purchased, for each Right		0.01
Exercise price for 1/100th of a share of junior participating preferred stock		$ 120.00
Number of days after a public announcement by the company that a person or group has become an acquiring person for the rights to be exercisable		10
Number of business days after a person or group begins a tender or exchange offer that would result in that person or group becoming the beneficial owner of 20% or more of the entity's common stock for the rights to be exercisable		10
Minimum percentage of beneficial ownership interest in the Entity's common stock to be achieved by a person or group for the rights to be exercisable		10.00%
Market value of shares of common stock, received upon exercise by the rightholder (other than an acquiring person), expressed as a multiplier of the Right's exercise price		2
Market value of shares of common stock of the acquiring company, received upon exercise by the rightholder (other than an acquiring person), expressed as a multiplier of the Right's excercise price		2
Dividend per share on junior participating preferred stock (in dollars per share)		$ 1.00
Dividend per share on junior participating preferred stock expressed as a multiplier of the aggregate per share amount of all cash and non cash dividends, other than dividends payable in common shares, declared on the common shares		100
Redemption price per right of junior participating preferred stock (in dollars per share)		$ 0.001
Authorized shares of preferred stock designated as junior participating preferred stock		1,000,000