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Financing Obligation Arising from Sale Leaseback Transaction - Schedule of Future Minimum Payments Under Financing Obligation (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Leases [Abstract]    
2019 $ 408  
2020 417  
2021 427  
2022 438  
2023 450  
Thereafter 2,025  
Total of payments 4,165  
Less deferred issuance costs (245)  
Less discount on debt instrument (1,054)  
Less imputed interest (349)  
Total balance 2,517  
Less current portion 199
Long term portion $ 2,318