|3 Months Ended|
Mar. 31, 2023
|Share-Based Payment Arrangement [Abstract]|
|Stock-Based Compensation||Stock-Based Compensation
Equity Incentive Plans
In 2005, the Company approved the 2005 Equity Incentive Plan (the “2005 Plan”). The 2005 Plan provides for the granting of stock options (incentive and nonqualified), restricted stock or other stock-based awards to
employees, officers, directors, consultants, and advisors. During 2010, the maximum number of shares of Common Stock that may be issued pursuant to the 2005 Plan was increased to 59,414 shares. The Board of Directors (the “Board”) is responsible for administration of the 2005 Plan. The Company’s Board determines the term of each option, the option exercise price, the number of shares for which each option is granted and the rate at which each option is exercisable. Incentive stock options may be granted to any officer or employee at an exercise price per share of not less than the fair value per common share on the date of the grant (not less than 110% of fair value in the case of holders of more than 10% of the Company’s voting stock) and with a term not to exceed ten years from the date of the grant (five years for incentive stock options granted to holders of more than 10% of the Company’s voting stock). Nonqualified stock options may be granted to any officer, employee, consultant, or director at an exercise price per share of not less than the par value per share. Following adoption of the 2014 Equity Incentive Plan (the “2014 Plan”), no further grants were made under the 2005 Plan. General terms of the 2014 Plan remain the same as that of the 2005 plan.
The Company’s Board adopted the 2014 Plan and the Employee Stock Purchase Plan (the “ESPP”), and the Company’s Stockholders approved the 2014 Plan and the ESPP Plan in February 2015. In January 2023, the number of shares of common stock issuable under the 2014 Plan automatically increased by 76,632 shares pursuant to the terms of the 2014 Plan. As of March 31, 2023, the maximum number of shares of Common Stock that may be issued pursuant to the 2014 Plan was 297,363 of which 11,175 shares were available for awards.
Stock-based compensation expense is presented in the same expense line items as cash compensation paid and for the three months ended March 31 is as follows:
The Company grants time-based stock options which generally vest one-third of the underlying shares on the one-year anniversary of the grant date and the remainder ratably over a 24-month period. The fair value of time-based stock options is determined using the Black-Scholes Option Pricing Model, with such value recognized as expense over the service period, which is typically three years, net of actual forfeitures. A summary of the Company’s assumptions used in determining the fair value of the stock options granted during the three months ended March 31, 2023 and 2022 is shown in the following table.
The weighted-average grant date fair value of options granted during the three months ended March 31, 2023 and 2022 was $3.83 and $30.42, respectively. The expected term of the options granted is based on management's estimate. Expected volatility is based on the historical volatility of the Company’s peers common stock. The risk-free interest rate is determined based upon a constant U.S. Treasury security rate with a contractual life that approximates the expected term of the option. Unamortized compensation expense related to the options amounted to $1.1 million as of March 31, 2023 and is expected to be recognized over a weighted average period of approximately 2.24 years.
Following is a summary of stock option activity for the three months ended March 31, 2023:
The stock options outstanding and exercisable as of March 31, 2023 had no aggregate intrinsic value. The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying options and the market price of the Company’s common stock for options that had exercise prices lower than $3.34, the closing price of the Company’s stock on March 31, 2023.
Restricted Stock Awards
Restricted stock compensation expense is recognized over the vesting period, which is typically one-third of the underlying shares on the one-year anniversary of the grant date and the remainder ratably over a 24-month period. Unamortized compensation expense related to the restricted stock awards amounted to $0.3 million as of March 31, 2023 and is expected to be recognized over a weighted average period of approximately 2.76 years. The following is a summary of restricted stock activity for the three months ended March 31, 2023:
Employee Stock Purchase Plan
The Company has a non-qualified Employee Stock Purchase Plan (ESPP), which provides for the issuance of shares of the Company’s common stock to eligible employees of the Company that elect to participate in the plan and purchase shares of common stock through payroll deductions at a discounted price. Six month offering periods are made at the Board’s discretion. The ESPP provides for 284 aggregate shares of the Company’s common stock for participants to purchase. As of March 31, 2023 and 2022, the remaining shares reserved for future offerings was 191.
The entire disclosure for shareholders' equity and share-based payment arrangement. Includes, but is not limited to, disclosure of policy and terms of share-based payment arrangement, deferred compensation arrangement, and employee stock purchase plan (ESPP).
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef