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Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Schedule Of Income Tax [Line Items]
Pre-tax federal net operating losses		$ 3,671,000
Pre-tax federal net operating losses expiration date		2024
Tax effected NOLs - Foreign		$ 3,841,000	$ 4,551,000	$ 2,051,000
Federal statutory rate		35.00%	35.00%	35.00%
Remeasurement of DTAs charges		$ 489,000
statutory federal and state and local tax rate used to remeasure DTAs		25.00%
Unrecognized tax benefits		$ 0	$ 0
Income tax examination description		Tax returns filed with each jurisdiction generally remain open to examination under the normal three-year statute of limitation. As of December 31, 2017, with few exceptions, the Company was no longer subject to income tax examinations by any taxing authority for years before 2014.
Scenario, Forecast [Member]
Schedule Of Income Tax [Line Items]
Federal statutory rate	21.00%

X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319

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- Definition

A brief description of status of the tax examination, significant findings to date, and the entity's position with respect to the findings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (d)(2)
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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
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- Definition

Amount of unrecognized tax benefits.

+ References

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-Name Accounting Standards Codification
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-Paragraph 15A
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- Definition

Deferred tax assets, operating loss carryforwards, net of tax.

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No definition available.

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- Definition

This represent the amount that our DTAs were reduced by - due to applying a new tax rate to them.

+ References

No definition available.

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- Definition

Statutory federal and state and local tax rate used to remeasure DTAs in connection with tax reform.

+ References

No definition available.

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Operating loss carry forward expiration year.

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- Definition

Schedule Of Income Tax [Line Items]

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