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Commitment and Contingencies - Minimum annual lease payments under non-cancelable lease arrangements (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Capital Leases
2020	$ 272
2021	272
2022	246
2023	159
2024	0
Total minimum lease payments	949
Less: amount representing interest	(75)
Present value of future minimum lease payments	874
Less: current portion	(238)
Long-term capital lease obligations	636
Operating Leases
2020	411
2021	34
2022	0
2023	0
2024	0
Total minimum lease payments	$ 445

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Amount of capital lease obligation due within one year or the normal operating cycle, if longer.

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Amount of minimum lease payments for capital leases due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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