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SUPPLEMENTAL FINANCIAL STATEMENT DATA (Tables) | 12 Months Ended
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Dec. 29, 2023
SUPPLEMENTAL FINANCIAL STATEMENT DATA |
Schedule of reconciliation of cash and cash equivalents, and restricted cash | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 29, | ​ | December 30, | ​ | January 1,
​ |  | 2023 |  | 2022 |  | 2022
​ | ​ | (in thousands)
Cash and cash equivalents | ​ | $ | 23,397 | ​ | $ | 8,806 | ​ | $ | 11,221
Restricted cash | ​ |  | — | ​ |  | 10,679 | ​ |  | —
Total cash, cash equivalents, and restricted cash shown in the consolidated statement of cash flows | ​ | $ | 23,397 | ​ | $ | 19,485 | ​ | $ | 11,221
Schedule of accounts receivable | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 29, | ​ | December 30,
​ |  | 2023 |  | 2022
​ | ​ | (in thousands)
Billed | ​ | $ | 70,543 | ​ | $ | 60,842
Allowance for doubtful accounts | ​ | ​ | (866) | ​ | ​ | (640)
Accounts receivable, net | ​ | $ | 69,677 | ​ | $ | 60,202
Schedule of the movements in the allowance for doubtful accounts | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Fiscal Year
​ |  | 2023 |  | 2022 |  | 2021
​ | ​ | (in thousands)
Balance as of the beginning of the year | ​ | $ | 640 | ​ | $ | 1,115 | ​ | $ | 2,127
(Recovery of) provision for doubtful accounts | ​ |  | 826 | ​ |  | 243 | ​ |  | 102
Write-offs of uncollectible accounts | ​ |  | (600) | ​ |  | (718) | ​ |  | (1,224)
Fair value adjustment | ​ |  | — | ​ |  | — | ​ |  | 110
Balance as of the end of the year | ​ | $ | 866 | ​ | $ | 640 | ​ | $ | 1,115
Schedule of contract assets | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 29, | ​ | December 30,
​ |  | 2023 |  | 2022
​ | ​ | (in thousands)
Unbilled short-term | ​ | $ | 79,585 | ​ | $ | 74,545
Contract retentions | ​ | ​ | 14,300 | ​ | ​ | 8,515
Contract assets | ​ | ​ | 93,885 | ​ | ​ | 83,060
Unbilled long-term (1) | ​ | ​ | 2,849 | ​ | ​ | 2,330
Total contract assets | ​ | $ | 96,734 | ​ | $ | 85,390
| (1) | Included in Other assets in the consolidated financial statements.
Schedule of equipment and leasehold improvements | ​
​ | ​ | ​ | ​
Category |  | Estimated Useful Life
Furniture and fixtures |  | 5 | years
Computer hardware |  | 3 | years
Computer software |  | 3 | years
Automobiles and trucks |  | 3 | years
Field equipment |  | 5 | years
​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 29, | ​ | December 30,
​ | ​ | 2023 |  | 2022
​ | ​ | (in thousands)
Furniture and fixtures | ​ | $ | 4,379 | ​ | $ | 4,062
Computer hardware and software | ​ |  | 44,594 | ​ |  | 35,635
Leasehold improvements | ​ |  | 3,382 | ​ |  | 3,097
Equipment under finance leases | ​ |  | 6,139 | ​ |  | 5,503
Automobiles, trucks, and field equipment | ​ |  | 3,373 | ​ |  | 3,134
Subtotal | ​ |  | 61,867 | ​ |  | 51,431
Accumulated depreciation and amortization | ​ |  | (34,770) | ​ |  | (28,894)
Equipment and leasehold improvements, net | ​ | $ | 27,097 | ​ | $ | 22,537
Schedule of accrued liabilities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 29, | ​ | December 30,
​ |  | 2023 |  | 2022
​ | ​ | (in thousands)
Accrued subcontractor costs | ​ | $ | 30,196 | ​ | $ | 28,374
Accrued bonuses | ​ | ​ | 14,423 | ​ | ​ | 8,470
Employee withholdings | ​ |  | 3,123 | ​ |  | 2,571
Compensation and payroll taxes | ​ |  | 3,125 | ​ |  | 2,340
Rebate and other | ​ | ​ | 139 | ​ | ​ | 14,643
Accrued accounting costs and taxes | ​ |  | 3,123 | ​ |  | 2,712
Total accrued liabilities | ​ | $ | 54,129 | ​ | $ | 59,110

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