Class of warrant or right exercised.

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- Definition

Class of warrant or right expiration year and month.

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Class Of Warrant Or Right Expired

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- Definition

Increase in percentage per year of number of common stock outstanding.

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- Definition

Period of termination of stock options from date of grant.

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- Definition

Period of termination of stock options vested after termination date.

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vesting Period Number Of Installments

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No definition available.

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- Definition

Share based compensation arrangement by share based payment award number of maximum shares issued upon exercise of incentive stock options.

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No definition available.

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- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

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- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i)(2))

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph i

-Subparagraph 2

-Article 4

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

+ References

No definition available.

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- Definition

Unrecognized cost of unvested options awarded to employees as compensation.

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No definition available.

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- Definition

Percentage of vesting of share-based compensation awards.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

General descriptive information regarding an arrangement under which employees and directors receive: (a) awards of equity shares, equity share options, or other equity instruments; or (b) the entity incurs liabilities to them: (1) in amounts based, at least in part, on the price of the entity's shares or other equity instruments; or (2) that require or may require settlement by issuance of the entity's shares. Such an arrangement is usually provided to employees and directors to compensate them, provide performance incentives to them, and to attract or retain their services. May also include pertinent information particular to a plan that is not elsewhere specified in the taxonomy.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (a)

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-Paragraph 2

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- Definition

Date the equity-based award expires, in CCYY-MM-DD format.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(2)

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(2)

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- Definition

Number of additional shares authorized for issuance under an established share-based compensation plan.

+ References

No definition available.

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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-Publisher FASB

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-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

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- Definition

Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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-Publisher FASB

-Name Accounting Standards Codification

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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-Publisher FASB

-Name Accounting Standards Codification

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- Definition

Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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- Definition

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

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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Stockholders' Equity - Additional Information (Detail) (USD $)	3 Months Ended		0 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Jan. 01, 2015	Oct. 13, 2006
Shareholders' Equity [Line Items]
Number of warrants exercised	0glyc_ClassOfWarrantOrRightExercised
Number of warrants expired	0glyc_ClassOfWarrantOrRightExpired
Weighted-average fair value of the options granted	$ 5.10	$ 6.13
2003 Stock Incentive Plan [Member]
Shareholders' Equity [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage	25.00%
Share-based compensation arrangement by share-based payment award, description	Unless otherwise stated in a stock option agreement, 25% of the shares subject to an option grant will vest upon the first anniversary of the vesting start date and thereafter at the rate of one forty-eighth of the option shares per month as of the first day of each month after the first anniversary.
Period that vested options shall terminate after termination date	60 days
Termination period of stock options from date of grant	10 years
Share-based compensation arrangement by share-based payment award, expiration date	May 21, 2013
Unrecognized compensation expense related to unvested options not yet recognized	$ 52,640		$ 52,640
Intrinsic value of options exercised during the period	5,376,000		5,376,000
Number of options exercised	67,295
Fair value of shares vested	13,785	17,825
2013 Equity Incentive Plan [Member]
Shareholders' Equity [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage	25.00%
Share-based compensation arrangement by share-based payment award, description	Unless otherwise stated in a stock option agreement, 25% of the shares subject to an option grant will typically vest upon the first anniversary of the vesting start date and thereafter at the rate of one forty-eighth of the option shares per month as of the first day of each month after the first anniversary.
Period that vested options shall terminate after termination date	90 days
Unrecognized compensation expense related to unvested options not yet recognized	6,635,271		6,635,271
Period for unrecognized compensation expense related to unvested options not yet recognized			3 years
Intrinsic value of options exercised during the period	65,000		65,000
Fair value of shares vested	1,252,769	0
Termination period of stock options from date of grant	10 years
Shares of common stock reserved for issuance, percentage increase	3.00%
Maximum number of shares that may be issued pursuant to exercise of incentive stock	20,000,000		20,000,000
Stock Incentive Plan [Member]
Shareholders' Equity [Line Items]
Intrinsic value of options exercised during the period	473,016		473,016
Number of options exercised		0
Stock Incentive Plan [Member] \| Maximum [Member]
Shareholders' Equity [Line Items]
Period for unrecognized compensation expense related to unvested options not yet recognized			1 year
RSU [Member] \| 2013 Equity Incentive Plan [Member]
Shareholders' Equity [Line Items]
Unrecognized compensation expense related to unvested service	$ 46,602		$ 46,602
Vesting period of RSUs	3
Common Stock [Member]
Shareholders' Equity [Line Items]
Number of shares underlying warrants					1,544
Exercise price per share					$ 25.92
Warrant expiration	2016-10
Common Stock [Member] \| Convertible Notes Payable [Member]
Shareholders' Equity [Line Items]
Number of shares underlying warrants	633,709		633,709
Common Stock [Member] \| 2013 Equity Incentive Plan [Member]
Shareholders' Equity [Line Items]
Common stock issued under 2013 plan				1,568,195
Shares of common stock reserved for issuance, percentage increase				3.00%
Increase in number of shares of common stock				568,195
Common Stock [Member] \| 2013 Equity Incentive Plan [Member] \| Maximum [Member]
Shareholders' Equity [Line Items]
Common stock issued under 2013 plan	1,000,000		1,000,000