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Shareholders Equity and Share Based Compensation - Additional Information (Detail) $ / shares in Units, $ in Thousands		12 Months Ended
	Sep. 10, 2020 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2019 USD ($)	Dec. 31, 2019 $ / shares	Dec. 31, 2018 USD ($)	Dec. 31, 2018 $ / shares
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Shares issued in pubic offering, net of issuance costs (in shares) | shares	9,396,226
Purchase price | $ / shares	$ 5.30
Proceeds from issuance of common stock	$ 49,800
Description of units sold	Each unit that was sold consists of one common share of the Company and a one-half (0.5) of a warrant to purchase a common share of the Company
Class of warrant or right, exercise price of warrants or rights | $ / shares	$ 5.80
Warrants exercisable beginning date	Mar. 10, 2021
Warrants exercisable expiration date	Sep. 10, 2025
Option granted contractual term		10 years
Stock options vesting period		3 years
Weighted average grant date fair value | $ / shares			$ 5.83		$ 9.58		$ 3.22
Aggregate Intrinsic value exercised		$ 2,732		$ 1,999		$ 2,162
Unrecognized share based compensation expense		$ 9,449	$ 9,449
Share based compensation cost expected period for recognition		3 years
Share based compensation expense		$ 6,142		$ 4,714		$ 1,454
Stock Compensation Plan [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Number of shares available for issuance | shares		2,175,000	2,175,000
Maximum percentage of outstanding shares		10.00%

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