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STOCKHOLDERS’ EQUITY | 9 Months Ended
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Sep. 30, 2022
Equity [Abstract] |
STOCKHOLDERS’ EQUITY | STOCKHOLDERS’ EQUITY Share-based Compensation Plans The following table sets forth the detailed allocation of the share-based compensation expense which was included in the Company’s Condensed Consolidated Statements of Operations:
| Three Months Ended |  | Nine Months Ended
(in thousands) | September 30, 2022 |  | October 1, 2021 |  | September 30, 2022 |  | October 1, 2021
Cost of revenue | $ | 607 |  |  | $ | 545 |  |  | $ | 1,691 |  |  | $ | 1,840 |
Research and development expense | 2,109 |  |  | 2,129 |  |  | 5,988 |  |  | 5,699 |
Selling, general and administrative expense | 3,744 |  |  | 3,762 |  |  | 11,942 |  |  | 11,328 |
Total | $ | 6,460 |  |  | $ | 6,436 |  |  | $ | 19,621 |  |  | $ | 18,867 |
Restricted Stock Units:
(in thousands, except per share amounts) | Number of Shares |  | Weighted Average Grant-Date Fair Value Per Share
Balance at December 31, 2021 | 3,878 |  |  | $ | 7.31 |
Granted | 2,637 |  |  | 9.25
Vested | (2,634) |  |  | 7.48
Forfeited | (120) |  |  | 8.39
Balance at September 30, 2022 | 3,761 |  |  | $ | 8.63 |
The Company’s stock benefit plans include the 2002 Employee Stock Purchase Plan (“ESPP”) and current active stock plans adopted in 1995 and 2002 (“1995 Stock Plan” and “2002 Director Plan”, respectively). Refer to Note 12, “Employee Benefit Plans” of Notes to Consolidated Financial Statements in the 2021 Form 10-K for details pertaining to each plan. The Company’s stockholders approved an amendment to the ESPP at the 2022 annual meeting of stockholders (the “2022 Annual Meeting”) to increase the number of shares of common stock reserved for issuance under the ESPP by 1,000,000 shares. The Company’s stockholders also approved an amendment to the 1995 Stock Plan at the 2022 Annual Meeting to increase the number of shares of common stock reserved for issuance thereunder by 7,000,000 shares. As of September 30, 2022, an aggregate of 11,645,946 shares of common stock were reserved for issuance under the 1995 Stock Plan, of which 7,760,174 shares remained available for future grants. As of September 30, 2022, an aggregate of 706,377 shares of common stock were reserved for issuance under the 2002 Director Plan, of which 524,199 shares remained available for future grants. Share Repurchase Program On February 3, 2022, the Board of Directors authorized the Company to repurchase up to $100 million of the Company’s outstanding shares of common stock through February 2025. The Company is authorized to repurchase, from time-to-time, shares of its outstanding common stock through open market purchases and 10b5-1 trading plans, in accordance with applicable rules and regulations, at such time and such prices as management may decide. The program does not obligate the Company to repurchase any specific number of shares and may be discontinued at any time. The actual timing and amount of repurchases are subject to business and market conditions, corporate and regulatory requirements, stock price, acquisition opportunities and other factors. During the nine months ended September 30, 2022, the company repurchased and retired approximately 0.6 million shares of the Company’s common stock for an aggregate amount of $5.1 million. As of September 30, 2022, approximately $94.9 million of the share repurchase authorization remained available for repurchases under this program.

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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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