Subsequent Event - Additional Information (Detail) - USD ($)		3 Months Ended
Apr. 24, 2020	Mar. 31, 2020
Stock based compensation other than options granted during period		23,845
Stock based compensation options granted during period		59,615
Unrecognized compensation expense related to stock compensation plans		$ 118
Share-based payment arrangement, nonvested award, cost not yet recognized, period for recognition		5 years
Restricted stock [Member]
Unrecognized compensation expense related to stock compensation plans		$ 188
Share-based payment arrangement, nonvested award, cost not yet recognized, period for recognition		5 years
Subsequent Event [Member]
Stock based compensation options granted during period	150,500
Unrecognized compensation expense related to stock compensation plans	$ 770
Share-based payment arrangement, nonvested award, cost not yet recognized, period for recognition	5 years
Subsequent Event [Member] \| Restricted stock [Member]
Stock based compensation other than options granted during period	60,104

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

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).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

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