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RESTRICTED CASH	3 Months Ended
RESTRICTED CASH	Mar. 31, 2019
RESTRICTED CASH
RESTRICTED CASH	3.RESTRICTED CASH Restricted cash as of both March 31, 2019 and December 31, 2018 was $114 thousand. Restricted cash as of March 31, 2019 and December 31, 2018 included a $50 thousand security deposit related to the Company’s credit card account, $4 thousand related to 401(k) reserve account and a $60 thousand standby letter of credit in favor of a landlord (see Note 5).