XML 49 R36.htm IDEA: XBRL DOCUMENT v3.23.1
Note 6 - Share-based Compensation (Details Textual) - USD ($)
12 Months Ended
Jun. 10, 2022
Jan. 03, 2022
Dec. 31, 2022
Dec. 31, 2021
Apr. 16, 2021
Dec. 31, 2020
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number, Ending Balance (in shares)     5,031,097 4,774,215   4,638,390
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)     865,825 [1] 870,825    
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)     $ 4.43 $ 5.11    
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares)     333,943 [2] 735,000    
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price (in dollars per share)     $ 1.63 $ 1.67    
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Expirations in Period (in shares)     200,000 [3] (0)    
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price (in dollars per share)     $ 5.47 $ 0    
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)     $ 2.49 $ 2.49    
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value     $ 365,000 $ 1,730,000    
Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount     $ 919,000 $ 857,000    
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)     2 years 9 months 3 days 3 years 25 days    
Share-Based Payment Arrangement, Expense     $ 1,888,944 $ 1,784,102    
Range 1 [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares)     150,000      
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price (in dollars per share)     $ 1.87      
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Expirations in Period (in shares)     30,000      
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price (in dollars per share)     $ 6.87      
Range 2 [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)     40,000      
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)     $ 1.63      
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Expirations in Period (in shares)     90,000      
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price (in dollars per share)     $ 5.27      
Range 3 [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)     8,943      
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)     $ 1.57      
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Expirations in Period (in shares)     80,000      
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price (in dollars per share)     $ 5.16      
Range 4 [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)     50,000      
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)     $ 1.44      
Range 5 [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)     50,000      
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)     $ 1.39      
Range 6 [Member}            
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)     35,000      
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)     $ 1.21      
Minimum [Member]            
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term (Year)     5 years 6 months 6 months    
Executives and Key Personnel [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)   325,000        
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)   $ 4.81        
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period (Year)   1 year        
Director [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)   277,500        
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)   $ 4.81        
Share-Based Payment Arrangement, Option [Member] | Director [Member]            
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)   1 year        
Share-Based Payment Arrangement, Option [Member] | Employees [Member] | Minimum [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)   23,325        
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)   $ 4.81        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)   4 years        
Share-Based Payment Arrangement, Option [Member] | Consultant [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)   15,000        
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)   $ 4.81        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)   1 year        
Share-Based Payment Arrangement, Option [Member] | Non-executive Members of the Board [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares) 150,000          
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share) $ 2.60          
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year) 1 year          
Share-Based Payment Arrangement, Option [Member] | Share-based Compensation Award Tranche Two through Five [Member] | Executives and Key Personnel [Member]            
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)   4 years        
Performance Shares [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)   75,000        
Performance Award [Member]            
Share-Based Payment Arrangement, Expense     $ 0 $ 0    
The 2011 Plan [Member]            
Common Stock, Capital Shares Reserved for Future Issuance (in shares)         3,000,000  
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number, Ending Balance (in shares)     5,031,097 4,774,215    
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)     3,672,561 4,263,386    
The 2011 Plan [Member] | Share-Based Payment Arrangement, Option [Member]            
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)     10 years      
The 2011 Plan [Member] | Share-Based Payment Arrangement, Option [Member] | Share-Based Payment Arrangement, Tranche One [Member]            
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)     1 year      
The 2011 Plan [Member] | Share-Based Payment Arrangement, Option [Member] | Share-Based Payment Arrangement, Tranche One [Member] | Contractor [Member]            
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term (Year)     1 year      
The 2011 Plan [Member] | Share-Based Payment Arrangement, Option [Member] | Share-Based Payment Arrangement, Tranche One [Member] | Chief Executive Officer [Member]            
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term (Year)     5 years      
The 2011 Plan [Member] | Share-Based Payment Arrangement, Option [Member] | Share-Based Payment Arrangement, Tranche Two [Member]            
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)     3 years      
The 2011 Plan [Member] | Share-Based Payment Arrangement, Option [Member] | Share-Based Payment Arrangement, Tranche Two [Member] | Contractor [Member]            
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term (Year)     3 years      
The 2011 Plan [Member] | Share-Based Payment Arrangement, Option [Member] | Share-Based Payment Arrangement, Tranche Two [Member] | Chief Executive Officer [Member]            
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term (Year)     10 years      
[1] Represents the following stock options granted: • Annual share-based compensation awards on January 3, 2022, including: (a)325,000 stock options with an exercise price of $4.81 per share granted to executives and key personnel, upon one year anniversary, or vesting annually in equal installments over four years, (b) 75,000 performance-based stock option to a key personnel with an exercise price of $4.81 per share, vesting upon the achievement of specified performance conditions, (c) 277,500 stock options with an exercise price of $4.81 per share granted to members of the Board of Directors, vesting upon one year anniversary, (d) 23,325 stock options with an exercise price of $4.81 per share granted to employees, vesting annually in equal installments over four years and (e) 15,000 stock options with an exercise price of $4.81 per share granted to a consultant, vesting upon one year anniversary. • One-time award on June 10, 2022, 150,000 stock options with an exercise price of $2.60 per share granted to the Board of Directors, vesting in one year from the grant date as a result of a reduction in director cash compensation.
[2] Represents the following stock options exercised: • 150,000 stock options exercised at $1.87, 40,000 stock options exercised at $1.63, 8,943 stock options exercised at $1.57, and 50,000 stock options exercised at $1.44, 50,000 stock options exercised at $1.39, and 35,000 stock options exercised at $1.21.
[3] Represents the following stock options expired: 30,000 stock options with exercise price of $6.87, 90,000 stock options with exercise price of $5.27, 80,000 stock option with exercise price of $5.16.