Property and equipment (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property and equipment
Property and equipment gross	$ 17,832	$ 16,840
Accumulated depreciation and amortization (including $1,153 and $633 at December 31, 2019 and 2018 respectively, applicable to finance leases)	(10,487)	(8,926)
Property and equipment, net	7,345	7,914
Depreciation and amortization of property and equipment	2,059	1,750	$ 1,363
Finance lease accumulated depreciation and amortization	1,153	633
Assets under finance lease
Property and equipment
Property and equipment gross	3,733	3,327
Leasehold improvements
Property and equipment
Property and equipment gross	4,392	4,340
Manufacturing, packaging and lab equipment
Property and equipment
Property and equipment gross	7,088	6,821
Office furniture and equipment
Property and equipment
Property and equipment gross	1,888	2,164
Assets under construction
Property and equipment
Property and equipment gross	$ 731	$ 188

Amount of accumulated amortization of right-of-use asset from finance lease.

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- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

+ References

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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

+ References

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- Definition

Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

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