Liquidity (Details Textual) - USD ($) |
3 Months Ended | 12 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2016 |
Mar. 31, 2016 |
Dec. 31, 2015 |
Sep. 30, 2015 |
Jun. 30, 2015 |
Mar. 31, 2015 |
Dec. 31, 2014 |
Sep. 30, 2014 |
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2013 |
|
| Liquidity Details Textual | ||||||||||||
| Cash and cash equivalents | $ 6,310,000 | $ 8,410,000 | $ 6,310,000 | $ 8,410,000 | $ 4,988,000 | $ 2,955,000 | ||||||
| Net loss | (3,243,000) | $ (3,709,000) | $ (3,323,000) | $ (2,577,000) | (3,101,000) | $ (2,895,000) | $ (2,754,000) | $ (4,395,000) | (12,852,000) | (13,145,000) | $ (8,247,000) | |
| Working capital (deficit) | (1,800,000) | $ 1,474,000 | (1,800,000) | $ 1,474,000 | ||||||||
| Common stock purchase available balance | $ 22,000,000 | $ 22,000,000 | ||||||||||