Geographical Data (Detail) - USD ($) $ in Thousands		3 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Jun. 30, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Net Sales	[1]	$ 20,168	$ 18,149
Total Identifiable Assets		64,246		$ 64,769
Domestic [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[1]	19,493	17,557
Foreign [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[1]	675	$ 592
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Identifiable Assets		50,148		51,272
Dominican Republic [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Identifiable Assets	[2]	$ 14,098		$ 13,497

[1] All of the Company's sales originate in the United States and are shipped primarily from the Company's facilities in the United States. There were no sales into any one foreign country in excess of 10% of total Net Sales.

[2] Consists primarily of inventories (September 30, 2016 = $10,666, June 30, 2016 = $10,076) and fixed assets (September 30, 2016 = $3,223, June 30, 2016 = $3,311) located at the Company's principal manufacturing facility in the Dominican Republic.