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Lease Supplemental Balance Sheet Information Related to Leases (Detail) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Operating Leases |  |
Operating lease right-of-use assets | $ 1,308 | $ 0
Total operating lease liabilities | 2,004 |
Finance Leases |  |
Property and equipment, at cost | 15,392 | 15,457
Accumulated depreciation | (13,543) | (12,464)
Property and equipment, net | 1,849 | $ 2,993
Total finance lease liabilities | $ 34 |
Weighted Average Remaining Lease Term |  |
Operating leases | 3 years |
Finance leases | 1 year |
Weighted Average Discount Rate |  |
Operating leases | 6.00% |
Finance leases | 13.80% |
Finance Lease [Member] |  |
Finance Leases |  |
Property and equipment, at cost | $ 66 |
Accumulated depreciation | (25) |
Property and equipment, net | 41 |
Other Noncurrent Liabilities [Member] |  |
Finance Leases |  |
Total finance lease liabilities | 25 |
Other Current Liabilities [Member] |  |
Operating Leases |  |
Total operating lease liabilities | 656 |
Finance Leases |  |
Total finance lease liabilities | 9 |
Operating Lease Liabilities [Member] |  |
Operating Leases |  |
Total operating lease liabilities | $ 1,348 |

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