Leases (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Weighted Average Remaining Lease Term [Abstract]
Operating leases		3 years 3 months 18 days
Finance leases		9 years 1 month 6 days
Weighted Average Discount Rate [Abstract]
Operating leases		5.75%
Finance leases		5.04%
Operating Leases, Right-of-Use Assets and Lease Liabilities [Abstract]
Right-of-use asset		$ 1,904		$ 1,979
Operating lease liabilities, non-current		1,443		$ 1,553
Future Minimum Lease Commitments [Abstract]
2019 (excluding the six months ended June 30, 2019)		546
2021		742
2022		592
2023		373
2024		27
2024 and thereafter		0
Total lease payments		2,280
Less imputed interest		(206)
Total		2,074
Finance Lease Liabilities, Payments, Due [Abstract]
2019 (excluding the six months ended June 30, 2019)		1,541
2021		2,096
2022		2,149
2023		2,203
2024		2,258
2024 and thereafter		10,658
Total lease payments		20,905
Less imputed interest		(4,334)
Total		16,571
Lease, Cost [Abstract]
Operating lease cost		177	$ 147
Short-term lease cost	[1]	18	42
Amortization of finance lease assets		305	305
Interest on finance lease liabilities		211	225
Total finance lease cost		516	530
Total lease costs		711	719
Cash paid for amounts included in the measurement of lease liabilities: [Abstract]
Cash flows from operating activities - operating leases		184	138
Cash flows from operating activities - finance leases		504	492
Right-of-use assets obtained in exchange for lease obligations: [Abstract]
Operating lease right-of-use assets obtained in exchange for operating lease liabilities		$ 145	$ 127

[1] Leases that have terms of 12 months or less.