Nature of Business and Summary of Significant Accounting Policies (Narrative) (Detail) (USD $)	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Significant Accounting Policies [Line Items]
Carrying amount of long-term debt, including current portion	$ 11,800,000	$ 16,400,000
Short-term time deposits	460,000	460,000
Intangible assets amortization expense	782,000	917,000
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 10 months 24 days	14 years 9 months 18 days
Antidilutive options outstanding excluded from diluted EPS computations	145,673	370,750
Stock-based compensation costs	76,000	0
Inventory Write-down	(827,000)	354,000
Sales Returns And Allowances Percentage	7.00%	6.00%
Stock-based compensation costs, effect on EPS	$ 0.00	$ 0.00
Selling, General and Administrative Expenses [Member]
Significant Accounting Policies [Line Items]
Advertising and promotion costs	1,408,000	1,318,000
Sales revenue, net [Member]
Significant Accounting Policies [Line Items]
Shipping and handling revenue	531,000	532,000
Cost of sales [Member]
Significant Accounting Policies [Line Items]
Research and development costs	5,059,000	5,119,000
Shipping and handling expense	985,000	1,090,000
Allowance for doubtful accounts current [Member]
Significant Accounting Policies [Line Items]
Valuation allowances and reserves, balance	180,000	220,000
Returns and other allowances [Member]
Significant Accounting Policies [Line Items]
Valuation allowances and reserves, balance	1,005,000	1,055,000
Inventory Valuation Reserve [Member]
Significant Accounting Policies [Line Items]
Valuation allowances and reserves, balance	2,565,000	3,392,000
Inventory Write-down	$ (827,000)	$ 354,000
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