Quarterly report pursuant to Section 13 or 15(d)

Equity Incentive Plan - Stock option activity and related Information (Details)

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Equity Incentive Plan - Stock option activity and related Information (Details) - 2013 Equity Incentive Plan - $ / shares
6 Months Ended 12 Months Ended
Jun. 30, 2023
Dec. 31, 2022
Stock Options    
Outstanding at December 31, 2022 513,948  
Granted 12,000  
Outstanding at June 30, 2023 525,948 513,948
Exercisable at June 30, 2023 459,950  
Weighted Average Exercise Price    
Outstanding at December 31, 2022 (in dollars per share) $ 7.59  
Granted 11.96  
Outstanding at June 30, 2023 (in dollars per share) 7.69 $ 7.59
Exercisable at June 30, 2023 (in dollars per share) $ 7.04  
Weighted Average Remaining Life (in years)    
Outstanding (in years) 6 years 2 months 12 days 6 years 7 months 6 days
Exercisable 5 years 9 months 18 days