Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands |
Mar. 26, 2016 |
Dec. 26, 2015 |
|---|---|---|
| Allowance for doubtful accounts on accounts receivable | $ 211 | $ 244 |
| Common Class A | ||
| Common Stock, par value | $ 0.01 | $ 0.01 |
| Common Stock, shares authorized | 22,700,000 | 22,700,000 |
| Common Stock, shares issued | 9,293,632 | 9,389,005 |
| Common Stock, shares outstanding | 9,293,632 | 9,389,005 |
| Common Class B | ||
| Common Stock, par value | $ 0.01 | $ 0.01 |
| Common Stock, shares authorized | 4,200,000 | 4,200,000 |
| Common Stock, shares issued | 3,367,355 | 3,367,355 |
| Common Stock, shares outstanding | 3,367,355 | 3,367,355 |