SUBSEQUENT EVENT (Details) - USD ($)	1 Months Ended
	Apr. 30, 2019	Mar. 31, 2019
Subsequent Event [Line Items]
Operating lease term, option to extend additional period		2 years
Operating lease initial term, aggregate minimum future lease payments		$ 583,000
Subsequent Event
Subsequent Event [Line Items]
Operating lease, initial term	11 years
Operating lease term, option to extend additional period	5 years
Operating lease initial term, aggregate minimum future lease payments	$ 3,700,000
Operating lease, rent abatement period	7 months