Stockholders’ Equity | Note 6. Stockholders’ Equity The following are changes in stockholders’ equity for the six months ended June 30, 2022 and 2023: Schedule of Changes in Stockholders' Equity Additional Common Stock paid in Accumulated Shares Amount Capital (Deficit) Total Balance December 31, 2021 12,905,112 $ - $ 60,341,000 $ (51,838,000 ) $ 8,503,000 Shares issued for warrant exercise 986 - 5,000 - 5,000 Equity-based compensation - - 93,000 - 93,000 Issuance of stock and options for services 13,801 - 98,000 - 98,000 Net loss - - - (1,589,000 ) (1,589,000 ) Balance June 30, 2022 12,919,899 $ - $ 60,537,000 $ (53,427,000 ) $ 7,110,000 Additional Common Stock paid in Accumulated Shares Amount Capital (Deficit) Total Balance December 31, 2022 12,934,741 $ - $ 60,905,000 $ (57,972,000 ) $ 2,933,000 Balance 12,934,741 $ - $ 60,905,000 $ (57,972,000 ) $ 2,933,000 Equity-based compensation 35,659 - 118,000 - 118,000 Cash settlement of equity-based compensation - - (24,000 ) - (24,000 ) Issuance of stock and options for services 32,203 - 83,000 - 83,000 Net loss - - - (1,647,000 ) (1,647,000 ) Balance June 30, 2023 13,002,603 $ - $ 61,082,000 $ (59,619,000 ) $ 1,463,000 Balance 13,002,603 $ - $ 61,082,000 $ (59,619,000 ) $ 1,463,000 Warrants During the six months ended June 30, 2023, 684,639 5.85 Equity Incentive Plan Through 2022, the Company issued equity awards under the 2015 Equity Incentive Plan (the “2015 Plan”) and outside the Plan. In June 2023, the Company’s stockholders adopted the 2023 Equity Incentive Plan (the “2023 Plan”), reserving 650,000 As of June 30, 2023, the Company has $ 194,000 1.7 Stock Options The following is a summary of stock option activity for the six months ended June 30, 2023: Summary of Stock Options Activity Number of Options Weighted Remaining Outstanding on December 31, 2022 682,939 $ 7.30 3.2 Issued 42,045 $ 1.48 8.0 Cancelled/expired (108,871 ) $ 8.38 Outstanding on June 30, 2023 616,113 $ 6.71 3.6 Exercisable, June 30, 2023 554,902 $ 6.96 2.8 The fair value of the options issued was calculated using the Black-Scholes option pricing model, based on the following: Summary of Fair Value of Options Using Black-Sholes Option Pricing Model 2023 Expected term (in years) 8.0 Expected volatility 84.4 % Risk-free interest rate 3.6 % Expected dividends $ - Weighted average grant date fair value per share $ 1.19 Restricted Stock The following is a summary of restricted stock award and restricted stock unit activity for the six months ended June 30, 2023: Summary of Restricted Stock Award and Restricted Stock Unit Activity Number of Weighted Unvested at January 1, 2023 41,923 $ 4.92 Granted 5,000 $ 1.25 Vested (4,386 ) $ 5.06 Forfeited (9,931 ) $ 3.33 Unvested at June 30, 2023 32,606 $ 4.82 Performance Stock Units During 2022 and 2023, the Company issued performance share units (“PSUs”) that represented shares potentially issuable based upon Company and individual performance in the years of issuance. The following table summarizes the activity for the Company’s unvested PSUs for the three months ended June 30, 2023: Summary of Performance Stock Unit Activity Number of shares Weighted Unvested at January 1, 2023 17,678 $ 4.50 Cash settled (17,678 ) $ 4.50 Granted 281,934 $ 1.58 Vested (45,251 ) $ 1.36 Unvested at June 30, 2023 236,683 $ 1.63 In February 2023, the unvested awards issued for individual performance and outstanding at January 1, 2023 were modified to cash-settle the original grant-date fair value of approximately $ 80,000 56,000 24,000 71,000 26,000 64,000 The Company adopted a 2023 PSU program in April 2023, granting approximately 211,000 67,000 no |