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CASH, CASH EQUIVALENTS AND RESTRICTED CASH (Details) - USD ($)
Jun. 30, 2019
Dec. 31, 2018
Jun. 30, 2018
Dec. 31, 2017
Restricted Cash and Cash Equivalents Items [Line Items]        
Cash and cash equivalents $ 115,000 $ 237,000    
Restricted cash 70,000 501,000    
Total cash, cash equivalents, and restricted cash shown in the Condensed Consolidated Statement of Cash Flows 185,000 $ 738,000 $ 1,262,000 $ 541,000
INTL FC Stone        
Restricted Cash and Cash Equivalents Items [Line Items]        
Restricted cash $ 70,200