Advertising and promotion (Details) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Advertising and promotion details | ||
| Advertising and promotion costs | $ 56,097 | $ 202,439 |
| X | ||||||||||
- Definition Goodwill was recorded on the acquisition of CAST No definition available.
|
| X | ||||||||||
- Definition The total expense recognized in the period for promotion, public relations, and brand or product advertising. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|