XML 26 R18.htm IDEA: XBRL DOCUMENT v3.2.0.727

Stock-based Compensation (Tables)

3 Months Ended

Mar. 31, 2015

Stock-based Compensation

Summary of restricted stock activity

		Shares		Weighted- average purchase price per share
Unvested at December 31, 2014		15,387		$	0.69
Vested		(9,709	)	0.69
Unvested at March 31, 2015 (1)		5,678		$	0.69

Summary of stock option activity

		Shares		Weighted- average exercise price per share			Weighted- average remaining contractual term (years)		Aggregate intrinsic value
Outstanding at December 31, 2014		281,029		$	0.69
Granted		638,095		5.73
Exercised		(115,559	)	3.98
Canceled		—		—
Outstanding at March 31, 2015		803,565		$	4.23		9.3		$	1,761
Exercisable at March 31, 2015		132,057		$	1.71		7.3		$	621
Vested and expected to vest at March 31, 2015		778,817		$	4.32		9.4		$	1,636

Schedule of assumptions used in Black-Scholes option-pricing model to estimate fair value of each stock option

		Three months ended March 31,
		2015		2014
Risk-free interest rate		1.6	%	1.8	%
Dividend yield		—		—
Volatility		77	%	77	%
Expected term (years)		6.25		6.25

X

- References

No definition available.

+ Details

Name:	us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the changes in outstanding nonvested restricted stock shares.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 718



-SubTopic 10



-Section 50



-Paragraph 2



-Subparagraph (c)



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

+ Details

Name:	us-gaap_NonvestedRestrictedStockSharesActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 718



-SubTopic 10



-Section 50



-Paragraph 2



-Subparagraph (c)(1)



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

+ Details

Name:	us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 718



-SubTopic 10



-Section 50



-Paragraph 2



-Subparagraph (f)(2)



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

+ Details

Name:	us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration