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Subsequent Events - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	Feb. 05, 2021	Jan. 07, 2021	Dec. 31, 2020	Dec. 31, 2019
Subsequent Event [Line Items]
Common stock, shares issued			10,318,000	10,146,000
Subsequent Event \| Employment Inducement Incentive Award Plan
Subsequent Event [Line Items]
Number of shares authorized	125,000
Stock options, terms of award	10
Sale of stock, price per share	$ 24.22
Stock options, award vesting rights, percentage	25.00%
Subsequent Event \| Employment Inducement Incentive Award Plan \| Maximum
Subsequent Event [Line Items]
Common stock, shares issued	300,000
Subsequent Event \| NimbeLink Corp
Subsequent Event [Line Items]
Outstanding stock acquired		$ 15.0
Contingent consideration, liability		$ 8.0