Loan Receivable Related Party, Decrease, Forgiveness

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The number of shares under options that were cancelled during the reporting period and re-issued as non-vesting shares.

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Number of share options (or share units) modified during period.

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- Definition

Modified weighted average price at which option holders acquired shares when converting their stock options into shares.

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- Definition

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.

+ References

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-Name Staff Accounting Bulletin (SAB)

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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.

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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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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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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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- Definition

Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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-Publisher FASB

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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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- Definition

Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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- Definition

Number of options outstanding, including both vested and non-vested options.

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- Definition

Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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No definition available.

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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

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Stock Based Compensation (Narrative) (Details) (USD $)	0 Months Ended	12 Months Ended			1 Months Ended
Stock Based Compensation (Narrative) (Details) (USD $)	Jun. 14, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jan. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate intrinsic value of options exercised		$ 200,000
Stock based compensation expense		2,669,000	1,049,000	1,305,000
Forgiveness of related party note	500,000
Nonvested stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense		843,000	512,000	580,000
Stock options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum contractual term (in years)		10 years
Options, grants in period (in dollars per share)		$ 20.29	$ 14.17	$ 0.97
Stock based compensation expense		1,632,000	511,000	383,000
Options outstanding (in shares)		1,023,637	714,484	772,851		910,189
Weighted average remaining contractual life, exercisable (in years)		7 years 5 months
Weighted average remaining contractual life, outstanding (in years)		8 years 6 months
Aggregate intrinsic value, exercisable		1,795,000
Aggregate intrinsic value, outstanding		3,602,000
Shares modified (in shares)				910,189
Modified exercise price (in dollars per share)				$ 0.97
Shares canceled and reissued (in shares)				234,086
Options exercised (in shares)	546,244	14,804	546,244	0
Fair value at issue date (in dollars per share)		$ 9.81	$ 7.03	$ 1.23
Restricted stock units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense		194,000	26,000	0
Stock purchases [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense		0	0	342,000
2013 Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized (in shares)		1,800,000
Shares available for future issuance (in shares)		875,163
Class B Nonvoting common stock [Member] \| Stock purchases [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized (in shares)					337,636
Options, grants in period (in dollars per share)					$ 0.97
Fair value at issue date (in dollars per share)					$ 1.98
Minimum [Member] \| Nonvested stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)		3 years
Minimum [Member] \| Stock options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)		3 years
Minimum [Member] \| Restricted stock units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)		1 year
Maximum [Member] \| Nonvested stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)		4 years
Maximum [Member] \| Stock options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)		4 years
Maximum [Member] \| Restricted stock units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)		2 years
January 2012 [Member] \| Class B Nonvoting common stock [Member] \| Stock purchases [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense			$ 300,000