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Significant Accounting Policies (Narrative) (Detail) (USD $) | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended |  |  |  |  |  | 3 Months Ended
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Dec. 31, 2012 | Jun. 30, 2012 | Dec. 31, 2011 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2012 Selling, General and Administrative Expenses [Member] | Dec. 31, 2011 Selling, General and Administrative Expenses [Member] | Dec. 31, 2012 Selling, General and Administrative Expenses [Member] | Dec. 31, 2011 Selling, General and Administrative Expenses [Member] | Dec. 31, 2012 Cost of sales [Member] | Dec. 31, 2011 Cost of sales [Member] | Dec. 31, 2012 Cost of sales [Member] | Dec. 31, 2011 Cost of sales [Member] | Dec. 31, 2012 Sales revenue, net [Member] | Dec. 31, 2011 Sales revenue, net [Member] | Dec. 31, 2012 Sales revenue, net [Member] | Dec. 31, 2011 Sales revenue, net [Member] | Dec. 31, 2012 Allowance for doubtful accounts current [Member] | Jun. 30, 2012 Allowance for doubtful accounts current [Member] | Dec. 31, 2012 Returns and other allowances [Member] | Jun. 30, 2012 Returns and other allowances [Member] | Aug. 18, 2008 Marks USA I, LLC [Member] | Dec. 31, 2012 Marks USA I, LLC [Member] Customer relationships [Member] | Dec. 31, 2012 Marks USA I, LLC [Member] Non-compete agreement [Member]
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term time deposits | $ 460,000 | $ 460,000 |  | $ 460,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Valuation allowances and reserves, balance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 220,000 | 200,000 | 1,075,000 | 1,184,000 |  |  |
Intangible assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 16,440,000 |  |
Period of amortization |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20 years | 7 years
Intangible assets amortization expense | 229,000 |  | 266,000 | 459,000 | 533,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated amortization expense-2013 | 917,000 |  |  | 917,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated amortization expense-2014 | 781,000 |  |  | 781,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated amortization expense-2015 | 667,000 |  |  | 667,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated amortization expense-2016 | 529,000 |  |  | 529,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated amortization expense-2017 | 441,000 |  |  | 441,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average amortization period for acquired intangible assets | 15 years 3 months 18 days | 15 years 9 months 18 days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Advertising and promotion costs |  |  |  |  |  | 294,000 | 232,000 | 721,000 | 483,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Research and development costs |  |  |  |  |  |  |  |  |  | 1,319,000 | 1,009,000 | 2,655,000 | 2,040,000 |  |  |  |  |  |  |  |  |  |  |
Antidilutive options outstanding excluded from diluted EPS computations |  |  |  | 681,140 | 1,330,210 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation costs | 0 |  | 1,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shipping and handling revenue |  |  |  |  |  |  |  |  |  |  |  |  |  | 128,000 | 139,000 | 249,000 | 275,000 |  |  |  |  |  |  |
Shipping and handling expense |  |  |  |  |  |  |  |  |  | $ 259,000 | $ 293,000 | $ 482,000 | $ 557,000 |  |  |  |  |  |  |  |  |  |  |

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