Significant Accounting Policies (Narrative) (Detail) (USD $)	3 Months Ended														3 Months Ended
	Sep. 30, 2012	Jun. 30, 2012	Sep. 30, 2011	Sep. 30, 2012 Selling, General and Administrative Expenses [Member]	Sep. 30, 2011 Selling, General and Administrative Expenses [Member]	Sep. 30, 2012 Cost of sales [Member]	Sep. 30, 2011 Cost of sales [Member]	Sep. 30, 2012 Sales revenue, net [Member]	Sep. 30, 2011 Sales revenue, net [Member]	Sep. 30, 2012 Allowance for doubtful accounts current [Member]	Jun. 30, 2012 Allowance for doubtful accounts current [Member]	Sep. 30, 2012 Returns and other allowances [Member]	Jun. 30, 2012 Returns and other allowances [Member]	Aug. 18, 2008 Marks USA I, LLC [Member]	Jun. 30, 2011 Marks USA I, LLC [Member] Marks trade name [Member]	Sep. 30, 2012 Marks USA I, LLC [Member] Customer relationships [Member]	Sep. 30, 2012 Marks USA I, LLC [Member] Non-compete agreement [Member]
Significant Accounting Policies [Line Items]
Short-term time deposits	$ 460,000	$ 460,000
Valuation allowances and reserves, balance										200,000	200,000	1,010,000	1,184,000
Intangible assets														16,440,000
Period of amortization																20 years	7 years
Asset impairment															400,000
Intangible assets amortization expense	230,000		266,000
Estimated amortization expense-2013	917,000
Estimated amortization expense-2014	781,000
Estimated amortization expense-2015	667,000
Estimated amortization expense-2016	529,000
Estimated amortization expense-2017	441,000
Weighted average amortization period for acquired intangible assets	15 years 6 months	15 years 9 months 18 days
Advertising and promotion costs				427,000	251,000
Research and development costs						1,336,000	1,031,000
Antidilutive options outstanding excluded from diluted EPS computations	1,383,140		1,410,140
Stock-based compensation costs	0		7,000
Shipping and handling revenue								121,000	136,000
Shipping and handling expense						$ 223,000	$ 264,000