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Subsequent Event (Narrative) (Detail) (USD $)
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6 Months Ended | 1 Months Ended | 6 Months Ended | 1 Months Ended | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Jun. 24, 2012
Restaurants
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Jun. 26, 2011
|
Dec. 25, 2011
|
Jun. 24, 2012
Common Stock [Member]
|
Jun. 24, 2012
Preferred Stock [Member]
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Jul. 27, 2012
IPO [Member]
|
Jul. 27, 2012
IPO [Member]
Grants To Non Executive Employees [Member]
|
Jul. 11, 2012
Subsequent Event
Ratio
|
Jun. 24, 2012
Subsequent Event
Restaurants
|
Aug. 30, 2012
Subsequent Event
Restaurants
|
Jul. 27, 2012
Subsequent Event
|
Jul. 27, 2012
Subsequent Event
Common Stock [Member]
|
Jul. 27, 2012
Subsequent Event
Preferred Stock [Member]
|
Jul. 27, 2012
Subsequent Event
IPO [Member]
|
Jul. 27, 2012
Subsequent Event
IPO [Member]
Grants To Non Executive Employees [Member]
|
|
| Subsequent Event [Line Items] | |||||||||||||||
| Number of new restaurants | 2 | ||||||||||||||
| Total number of restaurants | 35 | 37 | |||||||||||||
| Shares issued at IPO, shares | 192,878 | 208,505 | 6,708,332 | 6,708,332 | |||||||||||
| Shares issued to cover over allotment | 874,999 | 874,999 | |||||||||||||
| Proceeds from issuance of common stock | $ 83,000 | $ 79,400,000 | |||||||||||||
| Long term debt repaid | 325,000 | 28,107,000 | 79,400,000 | ||||||||||||
| Total outstanding debt | 5,000,000 | ||||||||||||||
| Reverse stock split ratio | 2.7585470602 | ||||||||||||||
| Common stock conversion | 1 | ||||||||||||||
| Convertible preferred stock, liquidation preference | $ 16,200,000 | ||||||||||||||
| Common shares outstanding | 9,210,095 | ||||||||||||||
| Common stock par value | $ 0.01 | $ 0.01 | $ 0.01 | $ 0.01 | |||||||||||
| Number of authorized shares before IPO | 11,818,345 | 9,017,217 | |||||||||||||
| Number of authorized shares after IPO | 60,000,000 | 15,000,000 | |||||||||||||
| Preferred stock par value | $ 0.01 | $ 0.01 | $ 0.01 | $ 0.01 | |||||||||||
| Common stock issued and outstanding | 15,918,427 | ||||||||||||||