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Future Operating Lease Payment Obligations and Future Minimum Lease Payments under Capital Leases (Detail) - Lease Obligations [Member] - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Operating leases
Rest of 2021	$ 479
2022	1,695
2023	1,399
2024	1,069
2025	503
2026-2030	320
Total Payments	5,465
Less: Interest	365
Amount of Lease Obligations Recorded on Consolidated Balance Sheets	5,100	$ 5,200	$ 5,600
Capital lease
Rest of 2021	39
2022	150
2023	107
2024	52
2025	20
2026-2030	0
Total Payments	368
Less: Interest	15
Amount of Lease Obligations Recorded on Consolidated Balance Sheets	$ 353	$ 400	$ 500

X

- Definition

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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

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