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Commitments - Summary of Lease Liabilities and Right-of-Use Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Assets
Operating	$ 744	$ 781
Financing	102
Total leased assets	846
Liabilities
Operating lease liabilities, current	136	147
Financing lease liabilities, current	108
Operating lease liabilities. noncurrent	624	$ 646
Financing lease liabilities, noncurrent	4
Total lease liabilities	$ 872
Weighted-average remaining lease term (years) - operating leases	6 years 8 months 26 days
Weighted-average remaining lease term (years) - finance leases	9 months 25 days
Weighted-average discount rate - operating leases	7.91%
Weighted-average discount rate - finance leases	5.00%

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