COMMITMENTS AND CONTINGENCIES - Lease Arrangements (Details)	1 Months Ended	12 Months Ended
	Jan. 31, 2015 USD ($)	Jan. 31, 2016 USD ($) ft²	Dec. 31, 2014 USD ($)
Operating lease commitments
2017		$ 246,000
Total		246,000
Purchase commitments
2017		421,000
2018		263,000
2019		263,000
2020		263,000
2021		263,000
Total		1,473,000
Contractual obligation commitments
2017		667,000
2018		263,000
2019		263,000
2020		263,000
2021		263,000
Total		$ 1,719,000
Rent expense
Leased office and laboratory space | ft²		10,800
Rent expense	$ 26,000	$ 357,000	$ 310,000