Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Valuation allowance		$ 4,757
Federal statutory rate	21.00%	34.00%
Retained Earnings	$ 8,315
Income Taxes	2,278
Additional income tax expense	0	$ 2,062
Domestic Tax Authority [Member]
Federal Loss Carryforwards	$ 12,500
Expiration Period	2029 years
State and Local Jurisdiction [Member]
Federal Loss Carryforwards	$ 22,600
Expiration Period	2021 years

Amount represents the value of income tax which is expected in future to be imposed.

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- Definition

Expiration period of each operating loss carryforward included in operating loss carryforward.

+ References

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- Definition

Amount represents the value of retained earnings excluding deferred federal or state income taxes.

+ References

No definition available.

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- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

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- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

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