Share Capital (Details) - $ / shares	9 Months Ended
Sep. 30, 2017	Sep. 30, 2016
Stockholders' Equity Note [Abstract]
Common stock fair value	$ 1.92	$ 1.92
Risk-free interest rate	2.50%	2.50%
Expected dividend yield	0.00%	0.00%
Expected warrant life (years)	6 months	6 months
Expected stock volatility	107.00%	107.00%

Price of a single share of a number of saleable stocks of a company.

No definition available.

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Namespace Prefix:	ohgi_
Data Type:	num:perShareItemType
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Period Type:	duration

- Definition

Expected dividends to be paid to holders of the underlying shares or financial instruments (expressed as a percentage of the share or instrument's price).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

+ Details

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Period Type:	duration

- Definition

Period the instrument, asset or liability is expected to be outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

+ Details

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- Definition

Risk-free interest rate assumption used in valuing an instrument.

+ References

+ Details

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Period Type:	duration

- Definition

Weighted average expected volatility of stock price.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

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