ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - ANTI-DILUTIVE SHARES (Details) - shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share
Potential dilutive securities excluded from diluted earnings (loss) per share calculation (in shares)	9,375,851	9,113,088	17,580,121
Stock options, restricted stock awards and warrants excluded from diluted net loss per share calculation due to net loss position
Antidilutive Securities Excluded from Computation of Earnings Per Share
Potential dilutive securities excluded from diluted earnings (loss) per share calculation (in shares)		3,072,340	532,120