Description of Business - Additional Information (Detail) - Jun. 28, 2015	ft² Store Segment
Description Of Business [Line Items]
Number of operating stores	439
Area of traditional sporting goods store \| ft²	11,000
Number of reportable segment \| Segment	1
Big 5 Corp [Member]
Description Of Business [Line Items]
Subsidiary interest ownership percentage	100.00%
Big 5 Service Corp [Member]
Description Of Business [Line Items]
Subsidiary interest ownership percentage	100.00%

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

No definition available.

Name:	us-gaap_NumberOfOperatingSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration