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Leases - Schedule of Lease Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Assets and Liabilities, Lessee
Operating lease assets	$ 678	$ 786
Finance lease assets	$ 101	$ 6,781
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
Total lease assets	$ 779	$ 7,567
Operating lease liabilities current	306	362
Finance lease liabilities current	17	0
Current portion of finance lease obligation - related parties	0	648
Operating lease liabilities non-current	436	490
Finance lease liabilities non-current	75	0
Present value of lease liabilities	$ 834	$ 1,500

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Present value of lessee's discounted obligation for lease payments from finance lease, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
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Amount, after accumulated amortization, of right-of-use asset from finance lease.

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