Valuation Accounts (Details)

Valuation Accounts (Details) (USD $)	12 Months Ended
Valuation Accounts (Details) (USD $)	Nov. 30, 2014	Nov. 30, 2013
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning Of Year	$ 2,345,628	$ 2,559,048
Additions Charged To Costs and Expenses	8,259,322	9,816,568
Deductions	8,487,876	10,029,988
Balance At End Of Year	2,117,074	2,345,628
Allowance for cooperative advertising
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning Of Year	1,212,067	1,561,215
Additions Charged To Costs and Expenses	1,862,856	5,141,552
Deductions	2,039,125	5,490,700
Balance At End Of Year	1,035,798	1,212,067
Allowance for doubtful accounts
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning Of Year	26,340	53,191
Additions Charged To Costs and Expenses	55,204	(26,851)
Deductions	25,032	0
Balance At End Of Year	56,512	26,340
Reserve for returns and allowances
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning Of Year	1,107,221	944,642
Additions Charged To Costs and Expenses	6,341,262	4,701,867
Deductions	6,423,719	4,539,288
Balance At End Of Year	1,024,764	1,107,221
Accrual for returns included in accrued liabilities
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning Of Year	665,185	1,069,661
Additions Charged To Costs and Expenses	1,045,458	0
Deductions	665,185	404,477
Balance At End Of Year	1,045,458	665,185
Accrual for cooperative advertising in accrued liabilities
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning Of Year	2,471,174	2,015,217
Additions Charged To Costs and Expenses	3,218,259	2,975,136
Deductions	2,471,174	2,519,179
Balance At End Of Year	3,218,259	2,471,174
Reserve for inventory obsolescence
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning Of Year	671,609	892,226
Additions Charged To Costs and Expenses	2,903,499	707,674
Deductions	544,802	928,291
Balance At End Of Year	$ 3,030,306	$ 671,609

Annual report pursuant to Section 13 and 15(d)

Valuation Accounts (Details)