COMMITMENTS - Leases (Details) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 30, 2016 |
Jan. 01, 2016 |
|
| Future minimum rental payments under capital leases | ||
| 2017 | $ 340,000 | |
| 2018 | 189,000 | |
| 2019 | 22,000 | |
| Total future minimum lease payments | 551,000 | |
| Amount representing interest | $ (7,000) | |
| Interest rate, minimum (as a percent) | 3.25% | |
| Interest rate, maximum (as a percent) | 3.75% | |
| Present value of net minimum lease payments under capital leases | $ 544,000 | |
| Less current portion | 334,000 | $ 444,000 |
| Capital lease noncurrent | 210,000 | $ 255,000 |
| Future minimum rental payments under non-cancelable operating leases | ||
| 2017 | 2,735,000 | |
| 2018 | 2,146,000 | |
| 2019 | 1,423,000 | |
| 2020 | 720,000 | |
| 2021 | 651,000 | |
| 2022 | 579,000 | |
| 2023 | 90,000 | |
| Total future minimum lease payments | $ 8,344,000 |