LOAN PAYABLE (Details) - USD ($)	1 Months Ended	3 Months Ended		9 Months Ended
	Oct. 31, 2012	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Mar. 31, 2016	Feb. 29, 2016
Loans Payable
Interest expense		$ 32,000	$ 32,000	$ 117,000	$ 97,000
Warrants
Loans Payable
Number of shares into which a warrant may be converted						587,950	395,716
Exercise price of warrant (in dollars per share)						$ 3.87	$ 5.75
Equipment Line of Credit
Loans Payable
Interest expense		$ 24,000	$ 32,000	$ 76,000	$ 97,000
MassDev
Loans Payable
Line of credit, maximum	$ 2,000,000
Line of credit for working capital purpose	$ 200,000
Fixed interest rate (as a percent)		6.50%		6.50%
Period for interest-only payments				30 months
Period for charging equal interest and principal payments				54 months
Maturity date				Oct. 05, 2019
Amount of monthly principal payment				$ 41,000
Commencement date of monthly installments				May 01, 2015
Future Principal payment due : 2016		$ 101,000		$ 101,000
Future Principal payment due : 2017		423,000		423,000
Future Principal payment due : 2018		452,000		452,000
Future Principal payment due : 2019		400,000		400,000
MassDev | Interest Expense
Loans Payable
Amortization of deferred financing costs		$ 1,000		$ 3,000
MassDev | Common Stock
Loans Payable
Number of shares into which a warrant may be converted	9,037
MassDev | Warrants
Loans Payable
Warrant period	7 years
Exercise price of warrant (in dollars per share)	$ 6.64
Fair value of warrants	$ 32,000
MassDev | Warrants
Loans Payable
Amortization period of deferred financing cost	7 years