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Employee benefit plan | 12 Months Ended
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Dec. 31, 2018
Retirement Benefits [Abstract] |
Employee benefit plan | Employee benefit plan The Company maintains a defined contribution 401(k) profit-sharing plan (the “401(k) Plan”) for eligible employees. Participants may make voluntary contributions up to the maximum amount allowable by law. The Company may make contributions to the 401(k) Plan on a discretionary basis which vest to the participants 100%. The Company made $0.2 million of matching contributions to the 401(k) Plan during the year ended December 31, 2018 and 2017, and $0.1 million during the year ended December 31, 2016.

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- Definition The entire disclosure for an entity's employee compensation and benefit plans, including, but not limited to, postemployment and postretirement benefit plans, defined benefit pension plans, defined contribution plans, non-qualified and supplemental benefit plans, deferred compensation, share-based compensation, life insurance, severance, health care, unemployment and other benefit plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -URI http://asc.fasb.org/topic&trid=2228938 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 712 -URI http://asc.fasb.org/topic&trid=2197446 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -URI http://asc.fasb.org/topic&trid=2127225 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
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