Acquisitions and Divestitures (Asset Divestitures) (Details)					1 Months Ended	3 Months Ended									12 Months Ended
	Sep. 09, 2014 USD ($) stores	Jul. 11, 2013 USD ($) stores	Feb. 22, 2013 USD ($) stores	Sep. 27, 2012 USD ($) stores	Oct. 31, 2014 USD ($)	Jan. 31, 2016 USD ($)	Nov. 01, 2015 USD ($)	Aug. 02, 2015 USD ($)	May. 03, 2015 USD ($)	Feb. 01, 2015 USD ($)	Nov. 02, 2014 USD ($)	Aug. 03, 2014 USD ($)	May. 04, 2014 USD ($)	Nov. 03, 2013 USD ($)	Jan. 31, 2016 USD ($)	Feb. 01, 2015 USD ($)	Feb. 02, 2014 USD ($)	Feb. 03, 2013 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from refranchising																$ 1,847,000	$ 681,000
Gain on refranchising transaction																1,247,000	876,000
Gain (loss) on sale of equipment															$ (161,000)	(238,000)	$ 1,879,000
Gain on reversal of accrued rent expense															555,000	2,000
Interest income						$ 79,000	$ 68,000	$ 72,000	$ 147,000	$ 109,000	$ 62,000	$ 64,000	$ 171,000		$ 366,000	$ 406,000	$ 616,000
Maryland Divestiture [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from refranchising	$ 1,800,000
Gain on refranchising transaction	$ 1,200,000
Future store locations required | stores	20
Dallas Divestiture [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of stores sold | stores		3
Proceeds from refranchising		$ 681,000
Aggregate purchase price					$ 2,100,000
Net sales attributable to refranchised stores																		$ 7,000,000
CPG percentage of net sales																		45.00%
Gain on refranchising transaction		876,000
Gain (loss) on sale of equipment		462,000
Gain on reversal of accrued rent expense		$ 414,000
Leased stores to franchisee | stores		2
Future store locations required | stores		15
Kansas and Missouri Divestiture [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of stores sold | stores			3
Aggregate purchase price			$ 1,100,000
Notes receivable, gross			$ 1,100,000
Percent of sales used to calculate principal payment on note receivable			3.50%
Notes receivable, interest rate spread			7.00%
Net sales attributable to refranchised stores																		$ 9,000,000
September 2012 Divestiture [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of stores sold | stores				3
Proceeds from refranchising				$ 360,000
Aggregate purchase price				3,600,000
Notes receivable, gross				3,200,000
Gain on refranchising transaction														$ 1,700,000
Notes receivable, periodic payment				51,000
Deferred gain on sale				$ 1,700,000
Interest income														$ 210,000
Percent investment must exceed to consider gain recognition				20.00%
Carrying amount of assets sold				$ 1,900,000