Property and equipment (Narrative) (Details) - USD ($) |
1 Months Ended | 3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|---|
Feb. 29, 2016 |
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
|
| Property, Plant and Equipment [Abstract] | |||||
| Depreciation expense | $ 5,200 | $ 36,000 | $ 6,000 | $ 114,000 | |
| Sales price of corporate headquarters, land and building to a third party | $ 4,000,000 | ||||
| Proceeds from sale of property and equipment | 1,700,000 | 1,799,143 | |||
| Gain on sale of property and equipment | $ 1,900,000 | $ 13,062 | $ 1,933,335 | ||
| X | ||||||||||
- Definition Sales price of corporate headquarters, land and building to a third party. No definition available.
|
| X | ||||||||||
- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|