Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation

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Stock-Based Compensation
9 Months Ended
Sep. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Stock-Based Compensation Stock-Based Compensation
 
We maintain a stock-based compensation program intended to attract, retain and provide incentives for talented employees and directors and align stockholder and employee interests. Currently, we grant options and restricted stock units ("RSUs") from the 2010 Equity Compensation Plan (“2010 ECP”) and 2017 Equity Compensation Plan ("2017 ECP"). Option and RSUs vesting periods are generally up to three years and/or achieving certain financial targets.

Compensation Expense

For the three and nine months ended September 30, 2018, we recorded stock-based compensation expense for all equity incentive plans of $159,799 and $827,595, respectively. For the three and nine months ended September 30, 2017, we recorded stock-based compensation expense for all equity incentive plans of $336,913 and $923,072, respectively. Total compensation cost not yet recognized at September 30, 2018 was $1,138,696 to be recognized over a weighted-average recognition period of 1.7 years.

The following table summarizes the stock grants outstanding under our 2005 Long-Term Incentive Plan ("2005 LTIP"), the 2010 ECP and the 2017 ECP as of September 30, 2018:
Options Outstanding
RSUs Outstanding
Options and RSUs Exercised
Available Shares
Total
2017 ECP  —  733,500  41,664  1,374,836  2,150,000 
2010 ECP  250,498  910,449  3,380,919  290,152  4,832,018 
2005 LTIP (*)  13,748  —  950,085  —  963,833 
Total
264,246  1,643,949  4,372,668  1,664,988  7,945,851 
(*) Expired June 2015

The following table summarizes the activities of stock option awards under the 2005 LTIP and the 2010 ECP as of September 30, 2018:
Shares Subject to Options Outstanding
Number of Shares
Weighted Average Exercise Price
Weighted Average Remaining Contractual Term (in years)
Aggregate Intrinsic Value
Balance as of December 31, 2017  264,246  $ 2.84  2.7 $ 2,019 
Stock options exercised
—  $ —  —  — 
Balance as of September 30, 2018  264,246  $ 2.84  2.7 $ 2,019 
Stock options exercisable as of September 30, 2018  264,246  $ 2.84  2.7 $ 2,019 

The following table summarizes the activities for our unvested RSUs for the nine months ended September 30, 2018:
Unvested RSUs
Number of Shares
Weighted Average Grant Date Fair Value
Unvested as of December 31, 2017
1,071,538  $ 1.84 
Granted  1,664,266  $ 0.76 
Vested  641,843  $ 2.26 
Forfeited  450,012  $ 1.05 
Unvested as of September 30, 2018  1,643,949  $ 0.80