Stock Option Plan (Tables)

3 Months Ended

Mar. 31, 2015

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Stock Option Plans Activity

A summary of the Plans’ stock option activity is as follows:

	Number of Shares		Weighted- Average Exercise Price Per Share		Weighted- Average Remaining Contractual Life (Years)		Aggregate Intrinsic Value
Balance at December 31, 2014	595,577		$	3.71	7.8
Granted	—
Exercised	(1,149	)		4.32
Forfeited	(765	)		8.65
Balance at March 31, 2015	593,663			3.70	7.5	$		6,114,729
Vested and expected to vest at March 31, 2015	583,536			3.69	7.5	$		6,016,256
Exercisable at March 31, 2015	324,189		$	3.39	6.4	$		3,439,645

Summary of Stock Option Grant Activity and Fair Value Information

Below is a summary of stock option grant activity and related fair value information for the three months ended March 31, 2014:

2014 Grants	OptionsGranted		Exercise Price		Fair Value of Common Stock on Date of Grant
January	2,094	$	2.15	$	2.15
March	249,361	$	2.15	$	2.15
Total	251,455