Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2015

Equity [Abstract]

Summary of Outstanding Warrants Issued By Company

Below is the summary of outstanding warrants issued by the Company as of March 31, 2015:

Warrant Type	Number of Shares Issuable Upon Exercise		Weighted Average Exercise Price		Issue Date	Expiration Date
Consultant Warrant		85,000	$	10.70	August 13, 2014	August 13, 2019
Opus Warrant		100,000		9.90	March 31, 2014	March 31, 2019
2013 Private Placement Warrants		186,878		10.00	August 14, 2013	August 14, 2017
2010 Private Placement Warrants		369,169		26.50	November 14, 2010	November 14, 2015
Total		741,047

Summary of Activity under Stock-Based Compensation Plans

A summary of activity for the Company’s stock option plans for the three months ended March 31, 2015 follows:

	Number Outstanding			Average Exercise Price per Share		Weighted Average Remaining Contractual Term (Years)		Average Intrinsic Value
Balance at December 31, 2014		897,115		$	12.09			$	3,425,558
Granted		—			—
Cancelled or Expired		(24,388	)		15.80
Exercised		(688	)		8.00
Balance at March 31, 2015		872,039		$	11.99		7.24	$	374,867
Vested or expected to vest at    March 31, 2015		799,420		$	12.25		6.99	$	339,349
Exercisable at March 31,    2015		406,673		$	15.11		5.45	$	144,478

Summary Information about Options Outstanding

The following table summarizes information about options outstanding as of March 31, 2015:

	Options Outstanding						Options Exercisable
Range of Exercise Prices	Number Outstanding		Weighted Average Remaining Contractual Life (Years)		Weighted Average Exercise Price		Number Exercisable		Weighted Average Exercise Price
$5.20 - $8.40		179,175		7.94	$	6.49		86,383	$	6.94
$8.41 - $8.80		256,625		8.93		8.80		65,375		8.80
$8.81 - $11.30		174,976		8.89		10.84		18,655		10.06
$11.31 - $24.00		177,800		4.53		14.75		153,385		14.88
$24.01 - $43.40		83,463		1.93		30.17		82,875		30.20
$5.20 - $43.40		872,039		7.24	$	11.99		406,673	$	15.11

Summary of Restricted Stock Unit Activity

The following is a summary of restricted stock and restricted stock unit (“RSU”) activity for the three months ended March 31, 2015:

	Number Outstanding			WeightedAverage Fair Value		Weighted Average Remaining Contractual Term (Years)	Average Intrinsic Value
Balance at December 31, 2014		542,342		$	13.74		$	7,533,132
Granted		264,000			12.49
Vested		(39,921	)		10.04
Forfeited		(22,000	)		10.57
Balance at March 31, 2015		744,421		$	13.34	1.65	$	6,387,133

Stock-Based Compensation Expense

The following table illustrates all employee stock-based compensation expense related to stock options and RSUs included in the condensed consolidated statements of operations for the three months ended March 31, 2015 and 2014 (in thousands):

	Three Months Ended
	March 31,
	2015		2014
Cost of revenue	$	29	$	5
Research and development		69		18
Selling and marketing		239		51
General and administrative		869		126
Total	$	1,206	$	200

Summary of Common Stock Reserved For Future Issuance

Common stock reserved for future issuance as of March 31, 2015 was as follows:

Exercise of outstanding stock options and vesting of RSUs	1,616,460
ESPP	293,888
Shares of common stock available for grant under the 2011 Plan	139,380
Noncontrolling interest in Bluehill AG	10,355
Warrants to purchase common stock	741,047
Contingent consideration for idOnDemand	321,429
Total	3,122,559