DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Offerings (Details) $ in Thousands	1 Months Ended							12 Months Ended
	Dec. 31, 2016 USD ($)	Nov. 30, 2016 USD ($)	Sep. 30, 2016 USD ($)	Aug. 31, 2016 USD ($)	Apr. 30, 2016 USD ($)	Dec. 31, 2015 USD ($)	Jun. 30, 2015 USD ($)	Jan. 31, 2017 USD ($) subsidiary	Jan. 31, 2016 USD ($)	Jan. 23, 2014
Other Disclosures
Number of wholly owned subsidiaries | subsidiary								1
Net proceeds from issuance of common stock, preferred stock and warrants								$ 16,712	$ 13,316
Equity interest percentage										77.80%
Allowance for Doubtful Accounts Receivable								0	0
Unrecognized Tax Benefits, Interest on Income Taxes Expense								$ 0	$ 0
Business Acquisition, Percentage of Voting Interests Acquired										100.00%
Private Placement
Other Disclosures
Net proceeds from the sale of common stock			$ 800	$ 1,300		$ 5,500
Net proceeds from private offering			$ 800
Private Placement | Secured Convertible Notes Payable
Other Disclosures
Net proceeds from convertible promissory notes				$ 1,500
Public Offering
Other Disclosures
Net proceeds from the sale of common stock							$ 7,800
Net proceeds from issuance of common stock and warrants					$ 3,600
Net proceeds from issuance of common stock, preferred stock and warrants		$ 10,600
Over-Allotment Option
Other Disclosures
Net proceeds from the sale of common stock	$ 400