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Financing Obligation Arising from Sale Leaseback Transaction - Schedule of Future Minimum Payments Under Financing Obligation (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Leases [Abstract]    
2019 $ 204  
2020 417  
2021 427  
2022 438  
2023 450  
Thereafter 2,025  
Total of payments 3,961  
Less deferred issuance costs (232)  
Less discount on debt instrument (996)  
Less imputed interest (315)  
Total balance 2,418  
Less current portion 205 $ 199
Long term portion $ 2,213 $ 2,318