Stockholders' Equity - Additional information (Detail)		3 Months Ended		9 Months Ended
	Nov. 04, 2020 USD ($) shares	Sep. 30, 2020 USD ($) shares	Sep. 30, 2019 shares	Sep. 30, 2020 USD ($) shares	Sep. 30, 2019 shares	Jul. 23, 2020 shares	Jul. 22, 2020 shares	Dec. 31, 2019 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, shares authorized (in shares)		235,000,000		235,000,000		235,000,000	175,000,000	175,000,000
Granted (in shares)				2,639,978
Fair market value of shares granted | $				$ 6,800,000
Term of options granted period				10 years
Vesting period of shares				3 years
Exercisable period				3 years
Stock option exercisable (in shares)		3,008,632		3,008,632
Unrecognized compensation cost related to non-vested share-based compensation awards granted | $		$ 7,600,000		$ 7,600,000
Warrants outstanding (in shares)		2,136,019		2,136,019
Antidilutive shares excluded from the computation of diluted earnings per common share (in shares)		4,752,251	15,488,972	5,458,745	15,260,949
Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized stock repurchase amount | $	$ 25,000,000
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted (in shares)				302,404
Fair market value of RSUs granted | $				$ 1,500,000
Awards vested (in shares)				712,654
Restricted Stock Units (RSUs) | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of shares				1 year
Restricted Stock Units (RSUs) | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of shares				3 years
Preferred Stock Series B
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred stock converted (in shares)				175
Preferred Stock, shares outstanding (in shares)		443		443				618
Preferred Stock Series A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred stock converted (in shares)				2,093,155
Share conversion ratio		1		1
Preferred Stock, shares outstanding (in shares)		0		0				2,093,155
Common Stock | Preferred Stock Series B
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of common stock upon conversion (in shares)			100,000	972,222	7,788,888
Common Stock | Preferred Stock Series A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of common stock upon conversion (in shares)				2,093,155
Chief Executive Officer | Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	840,000
Fair market value of shares granted | $	$ 1,700,000
Options vested (in shares)	160,000
Options vested, value | $	$ 300,000
Chief Executive Officer | Restricted Stock Units (RSUs) | Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted (in shares)	160,000
Fair market value of RSUs granted | $	$ 600,000
Awards vested (in shares)	40,000
Shares vested, value | $	$ 200,000