Note 4 - Property, Plant, and Equipment (Details) - USD ($)
$ in Thousands |
12 Months Ended |
|
Jun. 30, 2016 |
Jun. 30, 2015 |
| Machinery and Equipment [Member] | Minimum [Member] |
|
|
| Estimated Useful Life |
2 years 182 days
|
|
| Machinery and Equipment [Member] | Maximum [Member] |
|
|
| Estimated Useful Life |
10 years
|
|
| Machinery and Equipment [Member] |
|
|
| Property, Plant, and Equipment, Gross |
$ 6,604
|
$ 5,895
|
| Computer and Software [Member] | Minimum [Member] |
|
|
| Estimated Useful Life |
2 years
|
|
| Computer and Software [Member] | Maximum [Member] |
|
|
| Estimated Useful Life |
5 years
|
|
| Computer and Software [Member] |
|
|
| Property, Plant, and Equipment, Gross |
$ 397
|
897
|
| Office Equipment [Member] | Minimum [Member] |
|
|
| Estimated Useful Life |
5 years
|
|
| Office Equipment [Member] | Maximum [Member] |
|
|
| Estimated Useful Life |
10 years
|
|
| Office Equipment [Member] |
|
|
| Property, Plant, and Equipment, Gross |
$ 260
|
741
|
| Leasehold Improvements [Member] | Minimum [Member] |
|
|
| Estimated Useful Life |
5 years
|
|
| Leasehold Improvements [Member] | Maximum [Member] |
|
|
| Estimated Useful Life |
5 years
|
|
| Leasehold Improvements [Member] |
|
|
| Property, Plant, and Equipment, Gross |
$ 149
|
339
|
| Property, Plant, and Equipment, Gross |
7,410
|
7,872
|
| Less accumulated depreciation and amortization |
(4,448)
|
(4,935)
|
| Property, Plant, and Equipment, Net |
$ 2,962
|
$ 2,937
|