Intangible Assets (Details) - USD ($) $ in Thousands |
Sep. 30, 2016 |
Jun. 30, 2016 |
|---|---|---|
| Finite-Lived Intangible Assets [Line Items] | ||
| Finite-Lived Intangible Assets, gross carrying value | $ 5,384 | $ 5,365 |
| Finite-Lived Intangible Assets, accumulated amortization | (3,361) | (3,273) |
| Net intangible assets | 2,023 | 2,092 |
| Intellectual property [Member] | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Finite-Lived Intangible Assets, gross carrying value | 3,100 | 3,100 |
| Finite-Lived Intangible Assets, accumulated amortization | (1,971) | (1,932) |
| Patents [Member] | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Finite-Lived Intangible Assets, gross carrying value | 2,284 | 2,265 |
| Finite-Lived Intangible Assets, accumulated amortization | $ (1,390) | $ (1,341) |