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Stockholders' Equity | 12 Months Ended
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Dec. 31, 2022
Stockholders' Equity Note [Abstract] |
STOCKHOLDERS' EQUITY | 13. STOCKHOLDERS’ EQUITY Common Stock Issuances From February 2016 to April 2021, we sold the aggregate of 4,553,017 shares of common stock in six different transactions raising gross proceeds of approximately $26,714,000 at the weighted average price of $5.87 per share. These funds have been essential to funding our business growth plans. The details of each transaction are discussed below. 1) During February of 2016, we sold 1,123,810 shares of common stock at a price to the public of $5.25 per share in an underwritten public offering pursuant to our effective shelf registration statement on Form S-3, raising gross proceeds of approximately $5,900,000 and resulting in net proceeds to the Company of approximately $5,313,000 (after deducting underwriting discounts and offering expenses incurred in connection with the equity financing). 2) During October of 2016, we sold, in a private placement, 659,880 shares of common stock to nineteen institutional and accredited investors at $5.25 per share, raising gross proceeds of approximately $3,464,000 and resulting in net proceeds to the Company of approximately $3,161,000 (after deducting placement agent fees and other expenses incurred in connection with the equity financing). 3) During July of 2017, we sold 200,000 shares of our common stock at a price of $5.25 per share in a public, registered sale to two related investors pursuant to our effective shelf registration statement on Form S-3, raising gross proceeds of $1,050,000 and resulting in net proceeds of approximately $1,034,000 (after deducting expenses incurred in connection with the equity financing). 4) During December of 2017, we sold 417,807 shares of common stock at a price to the public of $7.30 per share in an underwritten public offering pursuant to our effective shelf registration statement on Form S-3, raising gross proceeds of approximately $3,050,000 and resulting in net proceeds to the Company of approximately $2,734,000 (after deducting underwriting discounts and offering expenses incurred in connection with the equity financing). 5) During March of 2019, we sold 1,636,364 shares of common stock at a price to the public of $5.50 per share in an underwritten public offering pursuant to our effective shelf registration statement on Form S-3, raising gross proceeds of approximately $9,000,000 and resulting in net proceeds to the Company of approximately $8,303,000 (after deducting underwriting discounts and offering expenses incurred in connection with the equity financing). 6) During April of 2021, we sold 515,156 shares of our common stock at a price of $8.25 per share in a public, registered sale to seven investors pursuant to our effective shelf registration statement on Form S-3, raising gross proceeds of approximately $4,250,000 and resulting in net proceeds of approximately $4,233,000 (after deducting expenses incurred in connection with the equity financing). Stock Option Plans In June 2010, our stockholders approved the 2010 Stock Option and Incentive Plan (the “2010 Plan”) pursuant to the provisions of the Internal Revenue Code of 1986, under which employees and certain service providers may be granted options to purchase shares of the Company’s common stock at no less than fair market value on the date of grant. At that time, 300,000 shares of common stock were reserved for issuance under the 2010 Plan and subsequently no additional shares have been reserved for the 2010 Plan. Vesting requirements are determined by the Compensation and Stock Option Committee of the Board of Directors on a case-by-case basis. All options granted under the 2010 Plan expire no later than 10 years from the date of grant. The 2010 Plan expired in June 2020, after which date no further options can be granted under the 2010 Plan. However, options outstanding under the 2010 Plan at that time can be exercised in accordance with their terms. As of December 31, 2022, there were 202,500 options outstanding under the 2010 Plan. In June 2017, our stockholders approved the 2017 Stock Option and Incentive Plan (the “2017 Plan”) pursuant to the provisions of the Internal Revenue Code of 1986, under which employees and certain service providers may be granted options to purchase shares of the Company’s common stock at no less than fair market value on the date of grant. At that time, 300,000 shares of common stock were reserved for issuance under the 2017 Plan. An amendment to the 2017 Plan increasing the number of shares reserved for issuance under the 2017 Plan from 300,000 shares to 650,000 shares was approved by a vote of stockholders at the Annual Meeting of Stockholders in June 2022. Vesting requirements are determined by the Compensation and Stock Option Committee of the Board of Directors on a case-by-case basis. All options granted under the 2017 Plan expire no later than 10 years from the date of grant. The 2017 Plan expires in March 2027, after which date no further options can be granted under the 2017 Plan. However, options outstanding under the 2017 Plan at that time can be exercised in accordance with their terms. As of December 31, 2022, there were 402,500 options outstanding under the 2017 Plan. Activity under the stock option plans described above was as follows:
|  | 2010 Plan |  |  | 2017 Plan |  |  | Weighted Average Exercise Price |  |  | Aggregate Intrinsic Value(1) |
Outstanding as of December 31, 2020 |  |  | 237,500 |  |  |  | 176,500 |  |  | $ | 6.38 |  |  | $ | (180,038 | )
Grants |  |  | — |  |  |  | 86,000 |  |  | $ | 9.78 |  |  |  |  |
Terminations/forfeitures(2) |  |  | (12,000 | ) |  |  | (20,000 | ) |  | $ | 7.26 |  |  |  |  |
Exercises |  |  | (7,000 | ) |  |  | (18,000 | ) |  | $ | 7.08 |  |  |  |  |
Outstanding as of December 31, 2021 |  |  | 218,500 |  |  |  | 224,500 |  |  | $ | 6.94 |  |  | $ | 468,425 |
Grants |  |  | — |  |  |  | 210,500 |  |  | $ | 7.73 |  |  |  |  |
Terminations/forfeitures(2) |  |  | (11,000 | ) |  |  | (32,500 | ) |  | $ | 7.34 |  |  |  |  |
Exercises |  |  | (5,000 | ) |  |  | — |  |  | $ | 6.13 |  |  |  |  |
Outstanding as of December 31, 2022 |  |  | 202,500 |  |  |  | 402,500 |  |  | $ | 7.19 |  |  | $ | (661,310 | )
Vested as of December 31, 2022 |  |  | 184,500 |  |  |  | 113,500 |  |  | $ | 6.66 |  |  | $ | (165,575 | )
Vested and expected to vest as of December 31, 2022 |  |  | 202,500 |  |  |  | 402,500 |  |  | $ | 7.19 |  |  | $ | (661,310 | )
Reserved for future grants |  |  | — |  |  |  | 229,500 |  |  |  |  |  |  |  |  |
(1) | Intrinsic value is the difference between the fair market value of the underlying common stock as of the date indicated and as of the date of the option grant (which is equal to the option exercise price).
(2) | Terminations and forfeitures are recognized when they occur.
The following table displays additional information about the stock option plans described above:
|  | Number of Shares |  |  | Weighted Average Fair Value at Grant Date |  |  | Weighted Average Exercise Price |
Non-vested stock options as of January 1, 2022 |  |  | 160,000 |  |  | $ | 3.36 |  |  | $ | 7.23 |
Non-vested stock options as of December 31, 2022 |  |  | 307,000 |  |  | $ | 3.80 |  |  | $ | 7.71 |
Stock options granted during the year ended December 31, 2022 |  |  | 210,500 |  |  | $ | 4.03 |  |  | $ | 7.73 |
Stock options that vested during the year ended December 31, 2022 |  |  | 31,000 |  |  | $ | 2.79 |  |  | $ | 5.35 |
Stock options that were terminated or forfeited during the year ended December 31, 2022 |  |  | 43,500 |  |  | $ | 4.00 |  |  | $ | 7.34 |
During the year ended December 31, 2022, one former employee and two employees exercised stock options covering 5,000 shares with $30,670 in cash. During the year ended December 31, 2021, one director and three employees exercised stock options covering 25,000 shares by the surrender of 17,128 shares of common stock with a fair market value of $165,337 at the time of exercise and the payment of $11,693 in cash. The weighted average remaining life of the options outstanding under the 2010 Plan and the 2017 Plan as of December 31, 2022 was approximately 5 years and 2 months. The weighted average remaining life of the options exercisable under these plans as of December 31, 2022 was approximately 3 years and 7 months. The exercise prices of the options outstanding as of December 31, 2022 ranged from $4.00 to $10.04 per share. The 210,500 stock options granted during the year ended December 31, 2022 had exercise prices between $6.52 and $9.39 per share. The 86,000 stock options granted during the year ended December 31, 2021 had exercise prices between $6.10 and $10.04 per share. The aggregate intrinsic value of options exercised during the years ended December 31, 2022 and 2021 approximated $10,525 and $64,977, respectively. The weighted-average grant date fair values of options granted during the years ended December 31, 2022 and 2021 were $4.03 and $4.51 per share, respectively. As of December 31, 2022, total unrecognized stock-based compensation related to non-vested stock options aggregated $793,171, which will be recognized over a weighted average remaining period of approximately 2 years. The fair value of each stock option grant has been estimated on the date of grant using the Black-Scholes option pricing model, for the purpose discussed in Note 2(n), with the following weighted-average assumptions:
|  | During the Years Ended December 31,
|  | 2022 |  | 2021
Risk-free interest rate(1) |  | 3.04% |  | 0.86%
Dividend yield(2) |  | 0% |  | 0%
Expected volatility(2) |  | 53% |  | 54%
Expected life(3) |  | 5.9 years |  | 5.0 years
| (1) | The risk-free interest rate is based on U.S. Treasury yields for a maturity approximating the expected option term.
| (2) | The dividend yield and expected volatility are derived from averages of our historical data.
| (3) | The expected life is calculated utilizing the simplified method, which uses the mid-point between the vesting period and the contractual term as the expected life.
Common Stock Rights Plan In September 1995, our Board of Directors adopted a Common Stock Rights Plan (the “Rights Plan”) and declared a dividend of one common share purchase right (a “Right”) for each of the then outstanding shares of the common stock of the Company. Each Right entitles the registered holder to purchase from the Company one share of common stock at an initial purchase price of $70.00 per share, subject to adjustment. The description and terms of the Rights are set forth in a Rights Agreement between the Company and American Stock Transfer & Trust Co., as Rights Agent. The Rights (as amended) become exercisable and transferable apart from the common stock upon the earlier of i) 10 days following a public announcement that a person or group (Acquiring Person) has, without the prior consent of the Continuing Directors (as such term is defined in the Rights Agreement), acquired beneficial ownership of 20% or more of the outstanding common stock or ii) 10 days following commencement of a tender offer or exchange offer the consummation of which would result in ownership by a person or group of 20% or more of the outstanding common stock (the earlier of such dates being called the Distribution Date). Upon the Distribution Date, the holder of each Right not owned by the Acquiring Person would be entitled to purchase common stock at a discount to the initial purchase price of $70.00 per share, effectively equal to one half of the market price of a share of common stock on the date the Acquiring Person becomes an Acquiring Person. If, after the Distribution Date, the Company should consolidate or merge with any other entity and the Company were not the surviving company, or, if the Company were the surviving company, all or part of the Company’s common stock were changed or exchanged into the securities of any other entity, or if more than 50% of the Company’s assets or earning power were sold, each Right would entitle its holder to purchase, at the Rights’ then-current purchase price, a number of shares of the acquiring company’s common stock having a market value at that time equal to twice the Right’s exercise price. At any time after a person or group becomes an Acquiring Person and prior to the acquisition by such person or group of 50% or more of the outstanding common stock, the Board of Directors of the Company may exchange the Rights (other than Rights owned by such person or group which have become void), in whole or in part, at an exchange ratio of one share of common stock per Right (subject to adjustment). At any time prior to 14 days following the date that any person or group becomes an Acquiring Person (subject to extension by the Board of Directors), the Board of Directors of the Company may redeem the then outstanding Rights in whole, but not in part, at a price of $0.005 per Right, subject to adjustment. During the third quarter of 2011, our Board of Directors voted to authorize an amendment to the Rights Plan to increase the ownership threshold for determining “Acquiring Person” status to 20%. During the second quarter of 2015, our Board of Directors also voted to authorize an amendment to remove a provision that prevented a new group of directors elected following the emergence of an Acquiring Person (an owner of more than 20% of our stock) from controlling the Rights Plan by maintaining exclusive authority over the Rights Plan with pre-existing directors. We did this because such provisions have come to be viewed with disfavor by Delaware courts. Each time that we made such amendments we entered into amendments to the Rights Agreement with the Rights Agent reflecting such extensions, threshold increases or provision changes. No other changes have been made to the terms of the Rights or the Rights Plan. At various times over the years, our Board of Directors has voted to authorize amendments to the Rights Plan to extend the Final Expiration Date. Our Board of Directors decided to seek an advisory vote by stockholders at the Annual Meeting of Stockholders held in June 2022, as to whether to extend the Rights Plan by one year to September 19, 2023. Recognizing that there might be a substantial number of broker non-votes, our Board of Directors, which has the authority to amend the Rights Plan, disclosed that it would be guided by the votes actually cast on this proposal in deciding whether to extend the expiration date of such plan by one year. Of the votes actually cast on this proposal, 65% voted in favor, 32% voted against and 3% abstained. On the basis of this vote, our Board of Directors voted to extend the Rights Plan by one year to September 19, 2023. Authorized Common Stock At the June 14, 2018 Annual Meeting of Stockholders, our stockholders voted to approve an amendment to our Certificate of Incorporation to increase the number of shares of common stock authorized for issuance from 8,000,000 to 11,000,000. At the June 10, 2020 Annual Meeting of Stockholders, our stockholders voted to approve an amendment to our Certificate of Incorporation to increase the number of shares of common stock authorized for issuance from 11,000,000 to 15,000,000.

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI https://asc.fasb.org/topic&trid=2208762 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496158-112644 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496158-112644 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 14 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496171-112644 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 14 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496171-112644 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI https://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 18 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496189-112644 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (g) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496158-112644 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 18 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496189-112644 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (h) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496158-112644 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 14 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496171-112644 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 18 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496189-112644 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 16 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496180-112644 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (i) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496158-112644 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(e)(1)) -URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 40 -Section 50 -Paragraph 6 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126731327&loc=SL126733271-114008 + Details
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