Quarterly report pursuant to Section 13 or 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Other Current Assets) (Details)

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Other Current Assets) (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Accounting Policies [Abstract]    
Prepaid expenses $ 2,372 $ 2,651
Deposits 2,516 2,494
Inventory 2,743 2,855
Miscellaneous current assets, net 12,840 12,505
Other current assets $ 20,471 $ 20,505