Quarterly report pursuant to Section 13 or 15(d)

Other long-term assets (Details)

v3.4.0.3
Other long-term assets (Details) - USD ($)
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]      
Patents, trademarks and applications, net of accumulated amortization $ 994,327   $ 1,136,410
Goodwill 387,239   387,239
Total other long-term assets 1,381,566   1,523,649
Finite-lived assets, accumulated amortization 534,692   $ 548,327
Future amortization      
2016 76,000    
2017 76,000    
2018 76,000    
2019 76,000    
2020 76,000    
Impairment charges $ 134,000