Description of the factors used to identify reportable segments, including the basis of organization (for example, whether management has chosen to organize the enterprise around differences in products and services, geographic areas, regulatory environments, or a combination of factors and whether operating segments have been aggregated to reportable segments).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8721-108599

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Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9038-108599

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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.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Segments - Additional Information (Detail)	3 Months Ended								12 Months Ended
Segments - Additional Information (Detail)	Dec. 31, 2016 USD ($)	Sep. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2016 USD ($) Segment	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments \| Segment									3
Number of operating segments \| Segment									0
Description of factors used to identify entity's reportable segments									No operating segments aggregated to arrive at the Company’s reportable segments
Revenue	$ 116,419,000	$ 87,007,000	$ 91,472,000	$ 83,343,000	$ 105,845,000	$ 68,817,000	$ 78,952,000	$ 76,923,000	$ 378,241,000	$ 330,537,000	$ 279,777,000
Franchise [Member]
Segment Reporting Information [Line Items]
Revenue									116,488,000	88,085,000	71,806,000
Franchise [Member] \| International [Member]
Segment Reporting Information [Line Items]
Revenue									1,771,000	786,000
Franchise [Member] \| Placement Services [Member]
Segment Reporting Information [Line Items]
Revenue									10,513,000	9,806,000	8,450,000
Corporate-owned Stores [Member]
Segment Reporting Information [Line Items]
Revenue									104,721,000	98,390,000	85,041,000
Corporate-owned Stores [Member] \| International [Member]
Segment Reporting Information [Line Items]
Revenue									4,180,000	2,931,000	$ 19,000
Long-lived assets	$ 2,795,000				$ 3,149,000				2,795,000	$ 3,149,000
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenue									$ 0