| Three-Month Period Ended | Six-Month Period Ended | |||||||||||||||||||
|
September 24,
2021 |
June 25,
2021 |
September 25,
2020 |
September 24,
2021 |
September 25,
2020 | ||||||||||||||||
| (Dollars in thousands) | ||||||||||||||||||||
| Reconciliation of Operating Expenses | ||||||||||||||||||||
| GAAP Operating Expenses | $ | 63,978 | $ | 61,918 | $ | 49,368 | $ | 125,896 | $ | 100,537 | ||||||||||
| Research and Development Expenses | ||||||||||||||||||||
| GAAP Research and Development Expenses | 29,590 | 29,554 | 25,130 | 59,144 | 49,510 | |||||||||||||||
| Stock-based compensation | 1,043 | 752 | 32 | 1,795 | 53 | |||||||||||||||
| AMTC Facility consolidation one-time costs | — | 2 | — | 2 | — | |||||||||||||||
| COVID-19 related expenses | 8 | 6 | — | 14 | — | |||||||||||||||
| Non-GAAP Research and Development Expenses | 28,539 | 28,794 | 25,098 | 57,333 | 49,457 | |||||||||||||||
| Selling, General and Administrative Expenses | ||||||||||||||||||||
| GAAP Selling, General and Administrative Expenses | 34,088 | 32,064 | 24,238 | 66,152 | 51,027 | |||||||||||||||
| Stock-based compensation | 4,431 | 3,551 | 495 | 7,982 | 822 | |||||||||||||||
| AMTC Facility consolidation one-time costs | 151 | 324 | 1,358 | 475 | 2,519 | |||||||||||||||
| Amortization of acquisition-related intangible assets | 16 | 29 | 9 | 45 | 9 | |||||||||||||||
| COVID-19 related expenses | 551 | 381 | 398 | 932 | 4,398 | |||||||||||||||
| Transaction fees | 6 | 23 | 1,871 | 29 | 1,988 | |||||||||||||||
| Severance | — | 168 | — | 168 | 337 | |||||||||||||||
| Non-GAAP Selling, General and Administrative Expenses | 28,933 | 27,588 | 20,107 | 56,521 | 40,954 | |||||||||||||||
| Change in fair value of contingent consideration | 300 | 300 | — | 600 | — | |||||||||||||||
| Total Non-GAAP Adjustments | 6,506 | 5,536 | 4,163 | 12,042 | 10,126 | |||||||||||||||
| Non-GAAP operating expenses * | $ | 57,472 | $ | 56,382 | $ | 45,205 | $ | 113,854 | $ | 90,411 | ||||||||||
* Non-GAAP Operating Expenses do not include adjustments for the following components of our net income: (i) additional AMTC related costs of $—, $—, and $380 for the three months ended September 24, 2021, June 25, 2021, and September 25, 2020, respectively, and (ii) additional AMTC related costs of $— and $704 for the six months ended September 24, 2021 and September 25, 2020, respectively, and labor savings costs of $— and $109 for the six months ended September 24, 2021 and September 25, 2020, respectively.
