|
Stockholders' Equity (Details) (USD $)
|
12 Months Ended |
|
|
Dec. 27, 2014
|
Dec. 28, 2013
|
Dec. 29, 2012
|
Dec. 31, 2005
|
| Additional disclosures |
|
|
|
|
| Preferred stock, shares authorized |
50,000 |
|
|
|
| Preferred stock, par value (in dollars per share) |
$ 100 |
|
|
|
| Preferred stock, shares outstanding |
0 |
|
|
|
| Equity Incentive 2005 Plan |
|
|
|
|
| Additional disclosures |
|
|
|
|
| Number of shares reserved for issuance |
418,314 |
|
|
410,518 |
| Number of shares authorized |
2,710,518 |
|
|
|
| Common stock available for any awards other than Incentive Stock Options (in shares) |
576,391 |
|
|
|
| Restricted Stock |
|
|
|
|
| Number of Shares |
|
|
|
|
| Nonvested at the beginning of the period (in shares) |
314,350 |
|
|
|
| Granted (in shares) |
25,000 |
|
|
|
| Vested, including shares withheld to cover taxes (in shares) |
(64,789) |
|
|
|
| Forfeited (in shares) |
(65,961) |
|
|
|
| Nonvested at the end of the period (in shares) |
208,600 |
314,350 |
|
|
| Weighted Average Grant Date Fair Value Per Share |
|
|
|
|
| Nonvested at the beginning of the period (in dollars per share) |
$ 5.82 |
|
|
|
| Granted (in dollars per share) |
$ 12.78 |
|
|
|
| Vested, including shares withheld to cover taxes (in dollars per share) |
$ 4.80 |
|
|
|
| Forfeited (in dollars per share) |
$ 4.09 |
|
|
|
| Nonvested at the end of the period (in dollars per share) |
$ 7.52 |
$ 5.82 |
|
|
| Additional disclosures |
|
|
|
|
| Stock-based compensation expense |
$ 1,100,000 |
$ 300,000 |
$ 500,000 |
|
| Unrecognized costs related to non-vested stock awards granted |
500,000 |
|
|
|
| Weighted average period for recognition of unrecognized compensation costs |
7 months 21 days |
|
|
|
| Restricted Stock | Minimum |
|
|
|
|
| Shareholders equity |
|
|
|
|
| Vesting period |
1 year |
|
|
|
| Restricted Stock | Maximum |
|
|
|
|
| Shareholders equity |
|
|
|
|
| Vesting period |
5 years |
|
|
|
| Restricted Stock | Officer | Maximum |
|
|
|
|
| Shareholders equity |
|
|
|
|
| Vesting period |
3 years |
|
|
|
| Restricted Stock | Director | Minimum |
|
|
|
|
| Shareholders equity |
|
|
|
|
| Vesting period |
1 year |
|
|
|
| Restricted Stock Units R S U [Member] |
|
|
|
|
| Number of Shares |
|
|
|
|
| Granted (in shares) |
146,748 |
|
|
|
| Forfeited (in shares) |
(1,819) |
|
|
|
| Nonvested at the end of the period (in shares) |
144,929 |
|
|
|
| Weighted Average Grant Date Fair Value Per Share |
|
|
|
|
| Granted (in dollars per share) |
$ 13.21 |
|
|
|
| Forfeited (in dollars per share) |
$ 13.21 |
|
|
|
| Nonvested at the end of the period (in dollars per share) |
$ 13.21 |
|
|
|
| Additional disclosures |
|
|
|
|
| Unrecognized costs related to non-vested stock awards granted |
1,500,000 |
|
|
|
| Weighted average period for recognition of unrecognized compensation costs |
2 years 6 months |
|
|
|
| Stock Options |
|
|
|
|
| Additional disclosures |
|
|
|
|
| Stock-based compensation expense |
600,000 |
600,000 |
700,000 |
|
| Stock-based compensation costs which were capitalized |
0 |
|
|
|
| Unrecognized costs related to non-vested stock options awards granted |
900,000 |
|
|
|
| Weighted average period for recognition of unrecognized compensation costs |
2 years 4 months 24 days |
|
|
|
| Expiration term of awards |
10 years |
|
|
|
| Weighted-average assumptions used to estimate fair value of each stock option grant |
|
|
|
|
| Expected dividend yield (as a percent) |
0.00% |
0.00% |
0.00% |
|
| Risk-free interest rate, minimum (as a percent) |
2.50% |
1.90% |
|
|
| Risk-free interest rate, maximum (as a percent) |
2.70% |
|
|
|
| Options Outstanding |
|
|
|
|
| Outstanding at the beginning of the period (in shares) |
934,300 |
|
|
|
| Granted (in shares) |
46,652 |
|
|
|
| Forfeited or expired (in shares) |
(208,500) |
|
|
|
| Exercised (in shares) |
(39,600) |
|
|
|
| Outstanding at the end of the period (in shares) |
732,852 |
934,300 |
|
|
| Weighted Average Exercise Price |
|
|
|
|
| Outstanding at the beginning of the period (in dollars per share) |
$ 4.58 |
|
|
|
| Granted (in dollars per share) |
$ 12.98 |
|
|
|
| Forfeited or expired (in dollars per share) |
$ 3.69 |
|
|
|
| Exercised (in dollars per share) |
$ 6.23 |
|
|
|
| Outstanding at the end of the period (in dollars per share) |
$ 5.27 |
$ 4.58 |
|
|
| Aggregate Intrinsic Value (in-the-money option) |
|
|
|
|
| Intrinsic value related to options outstanding |
5,196,255 |
|
|
|
| Closing stock price (in dollars per share) |
$ 12.32 |
|
|
|
| Intrinsic value related to vested options outstanding |
$ 3,300,000 |
|
|
|
| Weighted Average Remaining Contractual Life |
|
|
|
|
| Weighted Average Remaining Contractual Life |
6 years 6 months 15 days |
|
|
|
| Stock Options | Minimum |
|
|
|
|
| Shareholders equity |
|
|
|
|
| Vesting period |
1 year |
|
|
|
| Weighted-average assumptions used to estimate fair value of each stock option grant |
|
|
|
|
| Expected volatility (as a percent) |
38.00% |
53.00% |
56.00% |
|
| Expected life |
5 years 6 months |
5 years 6 months |
5 years 6 months |
|
| Risk-free interest rate, minimum (as a percent) |
|
|
1.70% |
|
| Stock Options | Maximum |
|
|
|
|
| Shareholders equity |
|
|
|
|
| Vesting period |
5 years |
|
|
|
| Weighted-average assumptions used to estimate fair value of each stock option grant |
|
|
|
|
| Expected volatility (as a percent) |
39.00% |
55.00% |
58.00% |
|
| Expected life |
6 years 6 months |
6 years 6 months |
6 years 6 months |
|
| Risk-free interest rate, maximum (as a percent) |
|
2.90% |
3.50% |
|
| Stock Options | Employees |
|
|
|
|
| Shareholders equity |
|
|
|
|
| Vesting period |
5 years |
|
|
|
| Stock Options | Director |
|
|
|
|
| Shareholders equity |
|
|
|
|
| Vesting period |
1 year |
|
|
|
| Stock Options Prior to May 2008 |
|
|
|
|
| Additional disclosures |
|
|
|
|
| Expiration term of awards |
5 years |
|
|
|
| Stock Options Prior to May 2008 | Employees |
|
|
|
|
| Shareholders equity |
|
|
|
|
| Vesting period |
5 years |
|
|
|
| Stock Options Prior to May 2008 | Director |
|
|
|
|
| Shareholders equity |
|
|
|
|
| Vesting period |
1 year |
|
|
|