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SALE OF COMMON STOCK AND ISSUANCE OFSECURED DEBT (Details) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Secured Debt $ 2,427 $ 2,427
Transaction costs (299) (287)
Long-term Debt, Gross 2,128 2,140
Amortization 64 41
Secured Long Term Debt, Gross 2,192 2,181
Accrued interest 104 68
Secured Long-term Debt, Noncurrent $ 2,296 $ 2,249