Stock Compensation
 12 Months Ended
Dec. 31, 2021
Stock Compensation [Abstract]  
Stock Compensation Note 14 – Stock Compensation   Incentive compensation plans The 2019 Non-Employee Director Stock Option and Incentive Plan (the “2019 Director Plan”) adopted and approved by the shareholders on December 5, 2019 was designed to enhance the flexibility to grant equity awards to Directors and to ensure grant of equity awards to eligible recipients. The 2019 Plan has an aggregate of 2.0 million shares and permits an award of stock options (both incentive and non-qualified options), stock appreciation rights, restricted stock, restricted stock units, unrestricted stock, dividend equivalent rights and cash-based awards. A minimum vesting period of one year is required for all equity awards. The 2019 Employee and Consultant Stock Option and Incentive Plan (the “2019 Employee and Consultant Plan”) adopted and approved by the shareholders on December 5, 2019 was designed to enhance the flexibility to grant equity awards to officers, employees and consultants and to ensure grant of equity awards to eligible recipients. The 2019 Plan has an aggregate of 5.0 million shares and permits an award of stock options (both incentive and non-qualified options), stock appreciation rights, restricted stock, restricted stock units, unrestricted stock, dividend equivalent rights and cash-based awards. A minimum vesting period of one year is required for all equity awards. Stock Option Summary A summary of the Company’s stock option activity for the year ended December 31, 2021 is presented in the following table:  Number of‎Shares Weighted‎Average‎Exercise‎Price Weighted‎Average‎Remaining‎Contractual‎Life (In Years) Aggregate‎Intrinsic‎ValueOutstanding at December 31, 2020 4,797,834 $ 2.17 Options granted 230,000 3.24 Options exercised (514,707) 1.92 Options forfeited — — Options cancelled or expired (800,259) 4.27 Outstanding at December 31, 2021 3,712,868 $ 1.81 3.31 $ 901,111Vested or expected to vest at December 31, 2021 (1) 3,711,637 $ 1.81 3.31 $ 901,015Exercisable at December 31, 2021 3,586,867 $ 1.77 3.13 $ 892,211(1) The expected to vest options are the result of applying the pre-vesting forfeiture rate assumptions to total unvested options.  At December 31, 2021, there were 4,459,833 shares available for grant under the 2019 Employee and Consultant Plan and 1,640,000 shares available under the 2019 Non - Employee Director Incentive Plans. There are no shares available for grant under older plans. The aggregate intrinsic value in the table above represents the difference between the exercise price of the underlying options and the quoted price of the Company’s common stock on December 31, 2021 for the options that were in-the-money. As of December 31, 2021 there were 1,406,281 options that were in-the-money. The Company’s closing stock price was $1.29 as of December 31, 2021. The Company issues new shares of common stock upon exercise of stock options. The aggregate intrinsic value of options exercised was $1.0 million for the year ended December 31, 2021. The following key assumptions were used in the Black-Scholes option pricing model to determine the fair value of stock options granted:  Twelve Months Ended December 31 2021 2020Dividend yield 0 % 0 %Risk free interest rates 0.89-0.95 % 0.3 %Expected volatility 75.9 to 79.0 % 69.6 %Expected term (in years) 5.0 to 5.5 5.5 The weighted average fair value per share for options granted in 2021 and 2020 was $2.21 and $0.48, respectively. There were no dividends declared or paid in 2021 or 2020. The Company does not expect to pay dividends in the near future. Therefore, the Company used an expected dividend yield of 0%. The risk-free interest rate used in the Black-Scholes option pricing model is based on an applicable yield available at the date of the option grant on U.S. Treasury securities with an equivalent term. Expected volatility is based on the weighted average historical volatility of the Company’s common stock for the equivalent term. The expected term of options represents the period that the Company’s stock-based awards are expected to be outstanding and was determined based on historical experience and vesting schedules of similar awards.  Restricted Stock Units (“RSU”) Summary A summary of the Company’s stock option activity for the year ended December 31, 2021 is presented in the following table: Weighted Average Grant Date Number of Awards Fair Value Per Share Service Performance Service Performance based based based basedRSUs outstanding, beginning of period 50,000 — $ 0.84 $ —Granted 430,945 103,048 3.50 3.60Vested and settled (16,667) — 0.84 —Forfeited (58,825) — 1.84 —RSUs outstanding, end of period 405,453 103,048 3.52 3.60 Stock- based compensation The Company uses the fair value method of accounting for share-based compensation arrangements. The fair value of stock options is estimated at the date of grant using the Black-Scholes option valuation model. Stock-based compensation expense is reduced for estimated forfeitures and is amortized over the vesting period using the straight-line method.  The fair value of Restricted Stock Units, or RSUs, is established by the market price of the Company’s common stock at the date of grant and for time based grants, is amortized over the vesting period using the straight line method. Performance-based RSUs are typically granted such that they vest upon the achievement of EBITDA targets, during a specified performance period, subject to the satisfaction of certain time-based service criteria. Compensation expense from these awards is equal to the fair market value of the Company’s ordinary shares on the date of grant and is recognized over the remaining service period based on the probable outcome of achievement of the financial metrics used in the specific grant’s performance criteria. Management’s estimate of the number of shares expected to vest is based on the anticipated achievement of the specified non-market performance criteria, which are assessed at each reporting period. The following table summarizes the allocation of non-cash stock-based compensation to the Company’s expense categories for the years ended December 31, 2021 and 2020 (in thousands): Twelve Months Ended December 31 2021 2020Cost of revenues $ 62 $ 16Research and development 138 42Selling, general and administrative 450 100Total stock compensation expense $ 650 $ 158 At December 31, 2021, total unrecognized compensation costs related to stock options and RSUs was approximately $118 thousand and $1.1 million, net of estimated forfeitures. Total unrecognized compensation cost for stock options and RSUs will be adjusted for future changes in estimated forfeitures and is expected to be recognized over a weighted average period of approximately 0.5 years and approximately 2.4 years, respectively.