Geographical Data (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Net Sales	[1]	$ 20,715	$ 20,497	$ 40,883	$ 38,646
Total Identifiable Assets		64,039		64,039		$ 64,769
Domestic [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[1]	20,100	19,729	39,593	37,286
Foreign [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[1]	615	$ 768	1,290	$ 1,360
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Identifiable Assets		48,813		48,813		51,272
Dominican Republic [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Identifiable Assets	[2]	$ 15,226		$ 15,226		$ 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 (December 31, 2016 = $11,781, June 30, 2016 = $10,076) and fixed assets (December 31, 2016 = $3,219, June 30, 2016 = $3,311) located at the Company's principal manufacturing facility in the Dominican Republic.