| June 30, 2016 | June 30, 2015 | |||||||
| Machinery and equipment | $ | 2,222,670 | $ | 2,923,577 | ||||
| Buildings and structures | 401,470 | 1,385,125 | ||||||
| Computers and office equipment | 173,313 | 175,248 | ||||||
| 2,797,453 | 4,483,950 | |||||||
| Less accumulated depreciation | (2,793,194 | ) | (2,506,731 | ) | ||||
| $ | 4,259 | $ | 1,977,219 | |||||