PREPAID EXPENSES AND OTHER CURRENT ASSETS (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
PREPAID EXPENSES AND OTHER CURRENT ASSETS.
Prepaid PDUFA fees	$ 512
Prepaid development costs	485
Prepaid Insurance	328	$ 420
Other current assets	304	205
Other prepaid expenses	276	208
Deferred financing costs		353
Total prepaid expenses and other current assets	$ 1,905	$ 1,186