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Leases - Schedule of Finance Lease Liability Maturity (Details) - USD ($) $ in Thousands | Jun. 30, 2019 | Dec. 31, 2018
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Leases [Abstract] |  |
Finance Leases 2019 Remainder | $ 141 |
Finance Leases 2020 | 336 |
Finance Leases 2021 | 27 |
Finance Leases 2022 |  |
Finance Leases 2023 |  |
Finance Leases 2024 and thereafter |  |
Finance Leases Total undiscounted lease payments | 504 |
Finance Leases Less: Imputed interest | (47) |
Finance Leases Present value of lease payments | 457 |
Current portion of finance lease obligations | 245 | $ 181
Long-term finance lease obligations, less current portion | $ 212 | $ 268

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- Definition Amount of lessee's undiscounted obligation for lease payments for finance lease, due after fifth fiscal year following latest fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980 + Details
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