Quarterly report pursuant to Section 13 or 15(d)

Amortizable intangible assets -Amounts related to intangible assets (Details)

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Amortizable intangible assets -Amounts related to intangible assets (Details) (USD $)
 3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]          
Amortization of Intangible Assets $ 22,255 $ 24,247 $ 63,181 $ 72,741  
Intangible Assets, Current 1,019,944   1,019,944    
Finite-Lived Intangible Assets, Gross 1,216,559   1,216,559   1,088,315
Finite-Lived Intangible Assets, Accumulated Amortization (196,615)   (196,615)   (134,988)
Intangible assets, net 1,019,944   1,019,944   953,327
Patents [Member]
          
Finite-Lived Intangible Assets [Line Items]          
Intangible Assets, Current 442,476   442,476    
Finite-Lived Intangible Assets, Gross 498,215   498,215   441,610
Finite-Lived Intangible Assets, Accumulated Amortization (55,739)   (55,739)   (39,583)
Intangible assets, net         402,027
Product Certification [Member]
          
Finite-Lived Intangible Assets [Line Items]          
Intangible Assets, Current 361,468   361,468    
Finite-Lived Intangible Assets, Gross 478,344   478,344   406,705
Finite-Lived Intangible Assets, Accumulated Amortization (116,876)   (116,876)   (83,405)
Intangible assets, net         323,300
Developed Technology Rights [Member]
          
Finite-Lived Intangible Assets [Line Items]          
Intangible Assets, Current 216,000   216,000    
Finite-Lived Intangible Assets, Gross 240,000   240,000   240,000
Finite-Lived Intangible Assets, Accumulated Amortization (24,000)   (24,000)   (12,000)
Intangible assets, net         $ 228,000