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Equity (Tables)
3 Months Ended
Mar. 31, 2024
Equity  
Schedule of status of the restricted stock grants

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Three Months Ended March 31,

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2024

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2023

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Weighted 

    

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Weighted 

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Average

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Average 

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Grant Date 

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Grant Date 

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Number of 

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Fair Value 

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Number of 

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Fair Value 

Restricted Stock Grants

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Shares

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 Per Share

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Shares

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Per Share

Outstanding at beginning of period

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5,800

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$

8.89

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19,800

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$

10.95

Granted during the period

 

—

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—

 

—

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—

Restrictions lifted during the period

 

—

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—

 

(1,333)

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11.15

Forfeited during the period

 

—

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—

 

—

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—

Outstanding at end of period

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5,800

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$

8.89

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18,467

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$

10.94

Schedule of restricted stock units

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Three Months Ended March 31,

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2024

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2023

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Weighted 

    

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Weighted 

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Average 

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Average 

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Grant Date 

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Grant Date 

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Number of 

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Fair Value 

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Number of 

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Fair Value 

Restricted Stock Units

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Shares

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Per Share

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Shares

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Per Share

Outstanding at beginning of period

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272,409

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$

13.09

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232,409

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$

15.06

Granted during the period

 

—

​

 

—

 

—

​

 

—

Shares issued during the period

 

—

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—

 

—

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—

Forfeited during the period

 

—

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—

 

—

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—

Outstanding at end of period

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272,409

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$

13.09

 

232,409

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$

15.06

Schedule of stock-based compensation

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Three Months Ended March 31,

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2024

    

2023

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(in thousands)

Restricted stock grants

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$

12

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$

33

Restricted stock units

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​

58

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117

KELTIP units

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​

3

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39

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$

73

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$

189

Summary of the status of the Company's common stock warrants

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Three Months Ended March 31,

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2024

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2023

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Weighted 

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Weighted 

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Number of

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Average

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Number of

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Average

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Underlying

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Exercise Price

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Underlying

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Exercise Price

Common Stock Warrants 

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Shares

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Per Share

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Shares

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Share

Outstanding at beginning of period

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11,308,314

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$

1.09

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392,155

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$

8.58

Granted during period

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—

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—

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—

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Exercised during period

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November 2023 Pre-Funded Warrants

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(488,572)

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0.0001

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—

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Expired during the period

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—

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—

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—

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Outstanding at end of period

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10,819,742

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$

1.14

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392,155

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$

8.58

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Number of

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Exercise

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Common Stock Warrants

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Warrants

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Price

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Expiration Date

July 2019 Series A Warrants

    

338,155

    

$

8.75

    

January 17, 2025

April 2020 Series A Warrants

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44,000

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$

7.50

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October 22, 2025

April 2020 Series B Warrants

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10,000

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$

7.50

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October 22, 2025

June 2023 Warrants

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1,427,587

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$

1.90

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December 26, 2028

November 2023 Series A Warrants

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6,000,000

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$

0.70

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November 6, 2028

November 2023 Series B Warrants

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3,000,000

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$

0.70

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May 6, 2025

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10,819,742

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