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Geographical Data (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Jun. 30, 2018
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |
Total Net Sales |  | $ 24,829 | $ 21,112 | $ 48,205 | $ 42,286 |
Total Identifiable Assets |  | 78,301 |  | 78,301 |  | $ 73,269
Domestic [Member] |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |
Total Net Sales | [1] | 24,013 | 20,451 | 46,886 | 41,103 |
Foreign [Member] |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |
Total Net Sales | [1] | 816 | $ 661 | 1,319 | $ 1,183 |
United States [Member] |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |
Total Identifiable Assets |  | 53,600 |  | 53,600 |  | 52,928
Dominican Republic [Member] |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |
Total Identifiable Assets | [2] | $ 24,701 |  | $ 24,701 |  | $ 20,341
[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, 2018 = $20,948, June 30, 2018 = $16,592) and long-lived assets (December 31, 2018 = $3,522, June 30, 2018 = $3,462) located at the Company's principal manufacturing facility in the Dominican Republic.

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