Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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+ Details

NET INCOME (LOSS) PER SHARE (Details) (USD $)	3 Months Ended		6 Months Ended
NET INCOME (LOSS) PER SHARE (Details) (USD $)	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
NET INCOME (LOSS) PER SHARE
Equivalent shares of options excluded from computation of diluted net income (loss) per share because anti-dilutive effect	6,122,000	4,291,000	5,789,000	4,039,000
Convertible Notes
Net income (loss) per share
Net shares issued			0
Minimum stock price to trigger conversion of debt (in dollars per share)			$ 20