Maturities of Lease Liabilities (Detail) $ in Thousands	Jun. 30, 2019 USD ($)
Years Ended December 31,
Operating leases, 2019	$ 321
Operating leases, 2020	656
Operating leases 2021	676
Operating leases, 2022	696
Operating leases, 2023	175
Operating leases, thereafter	0
Operating leases, total mimimum lease payments	2,524
Operating leases, less amount representing interest	(262)
Operating leases present value	2,261
Finance leases, 2019	14
Finance leases, 2020	27
Finance leases, 2021	9
Finance leases, 2022	0
Finance leases, 2023	0
Finance leases, thereafter	0
Finance leases, total minimum lease payments	50
Finance leases, less amount representing interest	(5)
Finance leases present value	$ 45

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Present value of lessee's discounted obligation for lease payments from finance lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980

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-Paragraph 1
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Amount of lessee's undiscounted obligation for lease payments for finance lease, due in remainder of fiscal year following latest fiscal year ended.

+ References

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-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980

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