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Equity Compensation Plan - Additional Information (Detail) - USD ($)						12 Months Ended
	Aug. 23, 2018	Nov. 20, 2017	Nov. 20, 2016	Nov. 20, 2015	Nov. 20, 2014	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share Based Compensation Arrangement By Share Based Payment Award Options [Line Items]
Dividends, total						$ 0	$ 0	$ 0
Share-based compensation arrangement by share-based payment award, equity instruments other than options, vested in period, fair value						$ 844,141	0	220,907
Non Vested Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award Options [Line Items]
Share-based compensation arrangement by share-based payment award, equity instruments other than options, grants in period	264,621				230,713
Share-based compensation arrangement by share-based payment award, equity instruments other than options, grants in period, weighted average grant date fair value	$ 3.59				$ 7.58
Share-based compensation arrangement by share-based payment award, award vesting period	1 year				3 years
Share-based compensation arrangement by share-based payment award, equity instruments other than options, vested in period		57,678	57,678	115,357		264,621
Restricted Stock [Member] | General and Administrative Expense [Member]
Share Based Compensation Arrangement By Share Based Payment Award Options [Line Items]
Allocated share-based compensation expense, total						$ 611,644	$ 338,356	$ 129,245
The Plan Member
Share Based Compensation Arrangement By Share Based Payment Award Options [Line Items]
Common stock, reserved percentage						10.00%
The Plan Member | Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award Options [Line Items]
Share-based compensation arrangement by share-based payment award, equity instruments other than options, grants in period						264,621
2007 Plan [Member] | Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award Options [Line Items]
Share-based compensation arrangement by share-based payment award, equity instruments other than options, grants in period						555,479

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Common Stock Reserved Percentage

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Share Based Compensation Arrangement By Share Based Payment Award Options [Line Items]

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of paid and unpaid cash, stock, and paid-in-kind (PIK) dividends declared, for example, but not limited to, common and preferred stock.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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