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