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Capital Stock, Treasury Stock and Additional Paid-in Capital - Additional Information (Detail) - USD ($)		12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	May 23, 2019
Stockholders' Equity Note [Abstract]
Stock repurchased during period, share	1,366,045
Treasury stock acquired, average cost per share		$ 3.40	$ 2.81
Treasury stock, shares, acquired		540,910	359,792
Stock repurchase program, authorized amount, additional				$ 10,000,000
Stock Issued During Period, Shares, Acquisitions	4,761,904
Shares Issued, Price Per Share	$ 2.10
Stock Repurchase Program Expiration Date	Apr. 28, 2020

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Stock Repurchase Program Authorized Amount Additional

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Per share or per unit amount of equity securities issued.

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Number of shares of stock issued during the period pursuant to acquisitions.

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Expiration date for the purchase of an entity's own shares under a stock repurchase plan, in the CCYY-MM-DD format.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Total cost of shares repurchased divided by the total number of shares repurchased.

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