Leases - Maturity Analysis (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Future minimum lease commitments
Remainder of 2019	$ 603
2020	533
2021	516
2022	396
2023	302
Total minimum payments	2,350
Less: amount representing interest	304
Lease liability	$ 2,046
Future minimum lease commitments
2019		$ 1,571
2020		367
2021		350
2022		355
2023		302
Total		$ 2,945

Amount of lessee's undiscounted obligation for lease payments for operating lease.

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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