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Nature of Business and Summary of Significant Accounting Policies (Narrative) (Detail) (USD $) | 3 Months Ended |
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Jun. 30, 2014
Significant Accounting Policies [Line Items] |  |  |
Carrying amount of long-term debt, including current portion | $ 11,400,000 |  | $ 11,800,000
Short-term time deposits | 460,000 |  | 460,000
Intangible assets amortization expense | 166,000 | 195,000 |
Estimated amortization expense-2015 | 667,000 |  |
Estimated amortization expense-2016 | 529,000 |  |
Estimated amortization expense-2017 | 441,000 |  |
Estimated amortization expense-2018 | 371,000 |  |
Estimated amortization expense-2019 | 313,000 |  |
Weighted average amortization period for acquired intangible assets | 13 years 8 months 12 days | 14 years 7 months 6 days |
Antidilutive options outstanding excluded from diluted EPS computations | 145,500 | 268,116 |
Stock-based compensation costs | 33,000 | 1,000 |
Sales Returns And Allowances Percentage | 8.00% | 7.00% |
Stock-based compensation costs, effect on EPS | $ 0.00 | $ 0 |
Selling, General and Administrative Expenses [Member] |  |  |
Significant Accounting Policies [Line Items] |  |  |
Advertising and promotion costs | 544,000 | 365,000 |
Sales revenue, net [Member] |  |  |
Significant Accounting Policies [Line Items] |  |  |
Shipping and handling revenue | 127,000 | 131,000 |
Cost of sales [Member] |  |  |
Significant Accounting Policies [Line Items] |  |  |
Research and development costs | 1,307,000 | 1,286,000 |
Shipping and handling expense | 241,000 | 242,000 |
Allowance for doubtful accounts current [Member] |  |  |
Significant Accounting Policies [Line Items] |  |  |
Valuation allowances and reserves, balance | 165,000 |  | 180,000
Returns and other allowances [Member] |  |  |
Significant Accounting Policies [Line Items] |  |  |
Valuation allowances and reserves, balance | $ 840,000 |  | $ 1,005,000
G. Marks Hardware, Inc. [Member] | Customer relationships [Member] |  |  |
Significant Accounting Policies [Line Items] |  |  |
Period of amortization | 20 years |  |
G. Marks Hardware, Inc. [Member] | Non-compete agreement [Member] |  |  |
Significant Accounting Policies [Line Items] |  |  |
Period of amortization | 7 years |  |

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