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Leases - Future minimum lease payments under noncancellable leases (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jan. 01, 2019
Leases [Abstract]
Six months ending December 31, 2020	$ 1,148
Years ending December 31:
2021	2,221
2022	2,193
2023	1,211
2024	807
2025	294
Thereafter	370
Total operating lease payments	8,244
Less imputed interest	(834)
Total operating lease liabilities	$ 7,410	$ 6,847

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
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Amount of lessee's undiscounted obligation for lease payments for operating lease, due after fifth fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fourth fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due in third fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments for operating lease having an initial or remaining lease term in excess of one year due in remainder of fiscal year following latest fiscal year.

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

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