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Stockholders' Equity (Tables)
3 Months Ended
Mar. 31, 2024
Stockholders' Equity  
Schedule of common stock warrants outstanding

    

Common Stock 

Warrants

Outstanding, December 31, 2022

 

747,383

Expired

 

(31,000)

Outstanding, March 31, 2023

 

716,383

Schedule of stock option activity

    

    

Weighted

 

 

Weighted

Average

 

Aggregate

 

Average

Exercise

 

Intrinsic

 

Remaining

Shares

Price

 

Value

 

Contractual Life

Stock options outstanding at December 31, 2023

6,438,931

$

3.63

$

9,052

Expired

 

(193,308)

4.79

Forfeited

 

(35,006)

2.13

Stock options outstanding and expected to vest at March 31, 2024

 

6,210,617

$

3.60

$

3,158

8.0

Years

Stock options exercisable at March 31, 2024

4,636,176

$

4.37

$

3,158

7.7

Years

Schedule of restricted stock activity

Weighted

   

Average

Shares

Fair Value

Restricted stock at December 31, 2022

34,001

$

3.22

Vested

(34,001)

3.22

Restricted stock at March 31, 2023

$

Schedule of RSU activity

Weighted

Average

Shares

   

Fair Value

RSUs at December 31, 2023

250,000

$

1.18

Vested

 

(10,000)

 

1.18

Cancelled

 

(240,000)

 

1.18

RSUs at March 31, 2024

 

$