PREPAID EXPENSES AND OTHER ASSETS, Prepaid Expenses and Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Prepaid Expense and Other Assets [Abstract]
Prepaid insurance	$ 404	$ 300
Prepaid fees	1,211	719
Notes receivable	648	451
Prepaid taxes	1,025	878
Other prepaid expenses and current assets	867	823
Prepaid expenses and other current assets	$ 4,155	$ 3,171