ACCOUNTS RECEIVABLE ALLOWANCES (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Accounts Receivable, Net, Current [Abstract]
Gross accounts receivable	$ 79,696,000		$ 79,696,000		$ 74,855,000
Less:
Chargebacks and rebates	(11,515,000)		(11,515,000)		(13,452,000)
Products returns	(8,359,000)		(8,359,000)		(8,409,000)
Discount and allowances	(1,616,000)		(1,616,000)		(1,362,000)
Advertising and promotions	(468,000)		(468,000)		(585,000)
Doubtful accounts	(31,000)		(31,000)		(30,000)
Trade accounts receivable, net	57,707,000		57,707,000		51,017,000
Chargeback and rebate expense	42,900,000	23,000,000	86,700,000	45,000,000
Provision for product returns	500,000	1,600,000	1,700,000	3,000,000
Provision for cash discounts	$ 1,900,000	$ 1,400,000	$ 3,900,000	$ 2,600,000