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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands | Common Stock | Additional Paid-in- Capital | Treasury Stock | Accumulated Other Comprehensive (Loss) Income | Accumulated Deficit | Total
--- | --- | --- | --- | --- | --- | ---
Beginning balance at Jan. 02, 2021 | $ 51 | $ 260,260 | $ (7,146) | $ (215) | $ (169,461) | $ 83,489
Beginning balance (in shares) at Jan. 02, 2021 | 48,091 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Net income (loss) |  |  |  |  | (2,722) | (2,722)
Issuance of shares in connection with stock option exercise |  | 163 |  |  |  | 163
Issuance of shares in connection with stock option exercise (in shares) | 130 |  |  |  |  |
Issuance of shares in connection with restricted stock units vesting | $ 2 | (6) |  |  |  | (4)
Issuance of shares in connection with restricted stock units vesting (in shares) | 2,382 |  |  |  |  |
Share-based compensation |  | 4,080 |  |  |  | 4,080
Issuance of shares in connection with BOD Fees |  | 6 |  |  |  | 6
Unrealized gain (loss) on deferred compensation trust assets |  |  |  | 35 |  | 35
Effect of changes in foreign currencies |  |  |  | 14 |  | 14
Ending balance at Apr. 03, 2021 | $ 53 | 264,503 | (7,146) | (166) | (172,183) | 85,061
Ending balance (in shares) at Apr. 03, 2021 | 50,603 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Net income (loss) |  |  |  |  | 2,072 | 2,072
Issuance of shares in connection with stock option exercise | $ 2 | 2,615 |  |  |  | 2,617
Issuance of shares in connection with stock option exercise (in shares) | 1,463 |  |  |  |  |
Share-based compensation |  | 3,821 |  |  |  | 3,821
Issuance of shares in connection with BOD Fees |  | 6 |  |  |  | 6
Issuance of stock awards |  | 389 |  |  |  | 389
Issuance of stock awards (in shares) | 118 |  |  |  |  |
Unrealized gain (loss) on deferred compensation trust assets |  |  |  | 38 |  | 38
Effect of changes in foreign currencies |  |  |  | 16 |  | 16
Ending balance at Jul. 03, 2021 | $ 55 | 271,334 | (7,146) | (112) | (170,111) | 94,020
Ending balance (in shares) at Jul. 03, 2021 | 52,184 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Net income (loss) |  |  |  |  | (4,659) | (4,659)
Issuance of shares in connection with stock option exercise |  | 451 |  |  |  | 451
Issuance of shares in connection with stock option exercise (in shares) | 108 |  |  |  |  |
Issuance of shares in connection with restricted stock units vesting (in shares) | 109 |  |  |  |  |
Share-based compensation |  | 4,364 |  |  |  | 4,364
Issuance of shares in connection with BOD Fees |  | 6 |  |  |  | 6
Issuance of stock awards |  | 233 |  |  |  | 233
Issuance of stock awards (in shares) | 14 |  |  |  |  |
Unrealized gain (loss) on deferred compensation trust assets |  |  |  | (5) |  | (5)
Effect of changes in foreign currencies |  |  |  | 60 |  | 60
Ending balance at Oct. 02, 2021 | $ 55 | 276,388 | (7,146) | (57) | (174,770) | 94,470
Ending balance (in shares) at Oct. 02, 2021 | 52,415 |  |  |  |  |
Beginning balance at Jan. 01, 2022 | $ 56 | 282,663 | (7,625) | 274 | (179,800) | 95,568
Beginning balance (in shares) at Jan. 01, 2022 | 52,960 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Net income (loss) |  |  |  |  | 2,103 | 2,103
Issuance of shares in connection with stock option exercise |  | 792 |  |  |  | 792
Issuance of shares in connection with stock option exercise (in shares) | 533 |  |  |  |  |
Issuance of shares in connection with restricted stock units vesting | $ 1 | (1) |  |  |  |
Issuance of shares in connection with restricted stock units vesting (in shares) | 519 |  |  |  |  |
Issuance of stock awards to consultants |  | 81 |  |  |  | 81
Issuance of stock awards to consultants (in shares) | 10 |  |  |  |  |
Share-based compensation |  | 4,225 |  |  |  | 4,225
Issuance of shares in connection with BOD Fees |  | 6 |  |  |  | 6
Issuance of shares in connection with ESPP |  | 431 |  |  |  | 431
Issuance of shares in connection with ESPP (in shares) | 45 |  |  |  |  |
Officers and directors stock purchase plan |  | 23 |  |  |  | 23
Officers and directors stock purchase plan (in shares) | 3 |  |  |  |  |
Unrealized gain (loss) on deferred compensation trust assets |  |  |  | (34) |  | (34)
Effect of changes in foreign currencies |  |  |  | 20 |  | 20
Ending balance at Apr. 02, 2022 | $ 57 | 288,220 | (7,625) | 260 | (177,697) | 103,215
Ending balance (in shares) at Apr. 02, 2022 | 54,070 |  |  |  |  |
Beginning balance at Jan. 01, 2022 | $ 56 | 282,663 | (7,625) | 274 | (179,800) | $ 95,568
Beginning balance (in shares) at Jan. 01, 2022 | 52,960 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Issuance of shares in connection with stock option exercise (in shares) |  |  |  |  |  | 665
Ending balance at Oct. 01, 2022 | $ 57 | 293,450 | (7,625) | 228 | (174,527) | $ 111,583
Ending balance (in shares) at Oct. 01, 2022 | 54,558 |  |  |  |  |
Beginning balance at Apr. 02, 2022 | $ 57 | 288,220 | (7,625) | 260 | (177,697) | 103,215
Beginning balance (in shares) at Apr. 02, 2022 | 54,070 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Net income (loss) |  |  |  |  | 4,118 | 4,118
Issuance of shares in connection with stock option exercise |  | 136 |  |  |  | 136
Issuance of shares in connection with stock option exercise (in shares) | 70 |  |  |  |  |
Issuance of shares in connection with restricted stock units vesting (in shares) | 220 |  |  |  |  |
Share-based compensation |  | 771 |  |  |  | 771
Issuance of shares in connection with BOD Fees |  | 6 |  |  |  | 6
Officers and directors stock purchase plan |  | 4 |  |  |  | 4
Unrealized gain (loss) on deferred compensation trust assets |  |  |  | (100) |  | (100)
Effect of changes in foreign currencies |  |  |  | 104 |  | 104
Ending balance at Jul. 02, 2022 | $ 57 | 289,137 | (7,625) | 264 | (173,579) | 108,254
Ending balance (in shares) at Jul. 02, 2022 | 54,360 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Net income (loss) |  |  |  |  | (948) | (948)
Issuance of shares in connection with stock option exercise |  | 184 |  |  |  | 184
Issuance of shares in connection with stock option exercise (in shares) | 63 |  |  |  |  |
Issuance of shares in connection with restricted stock units vesting (in shares) | 72 |  |  |  |  |
Share-based compensation |  | 3,760 |  |  |  | 3,760
Issuance of shares in connection with BOD Fees |  | 6 |  |  |  | 6
Issuance of shares in connection with BOD Fees (in shares) | 1 |  |  |  |  |
Issuance of shares in connection with ESPP |  | 363 |  |  |  | 363
Issuance of shares in connection with ESPP (in shares) | 62 |  |  |  |  |
Unrealized gain (loss) on deferred compensation trust assets |  |  |  | (36) |  | (36)
Ending balance at Oct. 01, 2022 | $ 57 | $ 293,450 | $ (7,625) | $ 228 | $ (174,527) | $ 111,583
Ending balance (in shares) at Oct. 01, 2022 | 54,558 |  |  |  |  |

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