Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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- Definition

Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders.

+ References

No definition available.

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- Definition

Number of share options (or share units) exercised during the current period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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- Definition

The amount of cashless exercise of options in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

No definition available.

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- Definition

Value of common stock on the day of agreement.

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No definition available.

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- Definition

The date on which the consulting agreement will terminate.

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- Definition

Number of non executive directors serving in board of directors, they do not form part of the executive management team.

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Number of shares issued in lieu of cash for services contributed to the entity, to each director.

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No definition available.

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- Definition

Number of stock issued during the period as a result of the exercise of cashless warrants.

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No definition available.

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Number of warrants exercised during the current period.

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No definition available.

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COMMON STOCK (Details) (USD $)	0 Months Ended	3 Months Ended		0 Months Ended
COMMON STOCK (Details) (USD $)	Feb. 09, 2015	Mar. 31, 2015	Mar. 31, 2014	Mar. 01, 2015	Feb. 24, 2015 Director	Jan. 02, 2014 Director
Subsidiary, Sale of Stock [Line Items]
Share-based compensation expense	$ 3,749,259	$ 128,880
Warrants exercised for cash (in shares)		0ztho_WarrantsExercised	0ztho_WarrantsExercised
Exercised stock options for cash (in shares)		0	0
Cashless exercise of warrants (in shares)		0	0
Cashless stock options exercised (in shares)		0ztho_CashlessExerciseOfOptionsShares	0ztho_CashlessExerciseOfOptionsShares
Restricted Shares of Common Stock [Member]
Subsidiary, Sale of Stock [Line Items]
Shares issued for services (in shares)			0	400,000
Consulting agreement termination date		Mar. 01, 2016
Common stock valued				104,000
Non-Executive Directors [Member]
Subsidiary, Sale of Stock [Line Items]
Shares issued for services (in shares)					576,924	285,716
Number of non executive directors					3	4
Shares issued for services per director (in shares)					192,308	71,429
Share-based compensation expense					$ 150,000	$ 160,001