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Shareholders' Equity | 9 Months Ended
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Sep. 30, 2021
Equity [Abstract] |
Shareholders' Equity | Shareholders’ Equity A summary of changes in shareholders’ equity for the three months ended September 30, 2021 is presented below:
|  | Common Stock |  | Additional Paid-In Capital |  | Retained Earnings |  | Treasury Stock |  | Deferred Compensation Trust |  | Deferred Compensation Liability |  | Total
Balance, June 30, 2021 |  | $ | 206 |  |  | $ | 2,314,564 |  |  | $ | 9,381,177 |  |  | $ | (8,653,659) |  |  | $ | (16,710) |  |  | $ | 16,710 |  |  | $ | 3,042,288 |
Net income |  | — |  |  | — |  |  | 332,081 |  |  | — |  |  | — |  |  | — |  |  | 332,081 |
Purchase of common stock for treasury |  | — |  |  | — |  |  | — |  |  | (398,489) |  |  | — |  |  | — |  |  | (398,489) |
Equity-based compensation |  | — |  |  | 15,009 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 15,009 |
Proceeds from Options exercised |  | — |  |  | 26,162 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 26,162 |
Treasury stock issued upon option exercise and restricted share vesting |  | — |  |  | (6,735) |  |  | — |  |  | 6,735 |  |  | — |  |  | — |  |  | — |
Balance, September 30, 2021 |  | $ | 206 |  |  | $ | 2,349,000 |  |  | $ | 9,713,258 |  |  | $ | (9,045,413) |  |  | $ | (16,710) |  |  | $ | 16,710 |  |  | $ | 3,017,051 |
A summary of changes in shareholders’ equity for the nine months ended September 30, 2021 is presented below:
|  | Common Stock |  | Additional Paid-In Capital |  | Retained Earnings |  | Treasury Stock |  | Deferred Compensation Trust |  | Deferred Compensation Liability |  | Total
Balance, December 31, 2020 |  | $ | 206 |  |  | $ | 2,214,426 |  |  | $ | 8,811,120 |  |  | $ | (7,922,678) |  |  | $ | (16,710) |  |  | $ | 16,710 |  |  | $ | 3,103,074 |
Net income |  | — |  |  | — |  |  | 902,138 |  |  | — |  |  | — |  |  | — |  |  | 902,138 |
Purchase of common stock for treasury |  | — |  |  | — |  |  | — |  |  | (1,152,855) |  |  | — |  |  | — |  |  | (1,152,855) |
Equity-based compensation |  | — |  |  | 42,859 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 42,859 |
Proceeds from Options exercised |  | — |  |  | 121,835 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 121,835 |
Treasury stock issued upon option exercise and restricted share vesting |  | — |  |  | (30,120) |  |  | — |  |  | 30,120 |  |  | — |  |  | — |  |  | — |
Balance, September 30, 2021 |  | $ | 206 |  |  | $ | 2,349,000 |  |  | $ | 9,713,258 |  |  | $ | (9,045,413) |  |  | $ | (16,710) |  |  | $ | 16,710 |  |  | $ | 3,017,051 |
We repurchased approximately 80 and 245 shares of our common stock during the three and nine months ended September 30, 2021, respectively. We settle Option exercises and vesting of RSUs by issuing shares of treasury stock. Approximately 13 and 62 shares were issued from the treasury account during the three and nine months ended September 30, 2021, respectively, in settlement of Option exercises and vesting of RSUs. Shares are relieved from the treasury account based on the weighted average cost basis of treasury shares. A summary of changes in shareholders’ equity for the three months ended September 30, 2020 is presented below:
|  | Common Stock |  | Additional Paid-In Capital |  | Retained Earnings |  | Treasury Stock |  | Deferred Compensation Trust |  | Deferred Compensation Liability |  | Total |  |  |  |  |  |
Balance, June 30, 2020 |  | $ | 206 |  |  | $ | 2,151,623 |  |  | $ | 8,249,650 |  |  | $ | (7,789,067) |  |  | $ | (16,710) |  |  | $ | 16,710 |  |  | $ | 2,612,412 |  |  |  |  |  |  |
Net income |  | — |  |  | — |  |  | 256,466 |  |  | — |  |  | — |  |  | — |  |  | 256,466 |  |  |  |  |  |  |
Equity-based compensation |  | — |  |  | 13,639 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 13,639 |  |  |  |  |  |  |
Proceeds from Options exercised |  | — |  |  | 36,476 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 36,476 |  |  |  |  |  |  |
Treasury stock issued upon option exercise and restricted share vesting |  | — |  |  | (13,531) |  |  | — |  |  | 13,531 |  |  | — |  |  | — |  |  | — |  |  |  |  |  |  |
Balance, September 30, 2020 |  | $ | 206 |  |  | $ | 2,188,207 |  |  | $ | 8,506,116 |  |  | $ | (7,775,536) |  |  | $ | (16,710) |  |  | $ | 16,710 |  |  | $ | 2,918,993 |  |  |  |  |  |  |
A summary of changes in shareholders’ equity for the nine months ended September 30, 2020 is presented below:
|  | Common Stock |  | Additional Paid-In Capital |  | Retained Earnings |  | Treasury Stock |  | Deferred Compensation Trust |  | Deferred Compensation Liability |  | Total
Balance, December 31, 2019 |  | $ | 206 |  |  | $ | 2,055,407 |  |  | $ | 7,909,872 |  |  | $ | (7,624,241) |  |  | $ | (16,912) |  |  | $ | 16,912 |  |  | $ | 2,341,244 |
Net income |  | — |  |  | — |  |  | 596,244 |  |  | — |  |  | — |  |  | — |  |  | 596,244 |
Deferred compensation activity, net |  | — |  |  | — |  |  | — |  |  | — |  |  | 202 |  |  | (202) |  |  | — |
Purchase of common stock for treasury |  | — |  |  | — |  |  | — |  |  | (216,582) |  |  | — |  |  | — |  |  | (216,582) |
Equity-based compensation |  | — |  |  | 35,565 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 35,565 |
Proceeds from Options exercised |  | — |  |  | 162,522 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 162,522 |
Treasury stock issued upon option exercise and restricted share vesting |  | — |  |  | (65,287) |  |  | — |  |  | 65,287 |  |  | — |  |  | — |  |  | — |
Balance, September 30, 2020 |  | $ | 206 |  |  | $ | 2,188,207 |  |  | $ | 8,506,116 |  |  | $ | (7,775,536) |  |  | $ | (16,710) |  |  | $ | 16,710 |  |  | $ | 2,918,993 |
We repurchased approximately 58 shares of our common stock during the nine months ended September 30, 2020, all of which were repurchased in the first quarter. Approximately 29 and 143 shares were issued from the treasury account during the three and nine months ended September 30, 2020, respectively, in settlement of Option exercises and vesting of RSUs.

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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://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=123467817&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 14 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644 Reference 5: 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 http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 18 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 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 http://asc.fasb.org/extlink&oid=123467817&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 http://asc.fasb.org/extlink&oid=123467817&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 http://asc.fasb.org/extlink&oid=123467817&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 http://asc.fasb.org/extlink&oid=123467817&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 http://asc.fasb.org/extlink&oid=123467817&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 http://asc.fasb.org/extlink&oid=123467817&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 http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
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