Leases - Future minimum rental payments (Details) $ in Thousands	Mar. 31, 2020 USD ($)
Operating Leases
2020	$ 919
2021	1,118
2022	1,060
2023	1,055
2024	1,106
Total lease payments	5,258
Less amount representing interest	(1,484)
Total lease obligations	3,774
Finance Leases
2020	538
2021	117
2022	115
2023	95
2024	40
Total lease payments	905
Less amount representing interest	(64)
Total lease obligations	$ 841