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9. Other accrued expenses and liabilities (Tables)
 3 Months Ended 12 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Payables and Accruals [Abstract]    
Other accrued expenses and other liabilities

Other accrued expenses and other liabilities consisted of the following:

    March 31,     December 31,  
    2014     2013  
    (Unaudited)        
Payroll related   $ 599,706     $ 479,087  
Estimated property damage liability that may not be covered by insurance     393,592       393,592  
Professional fees     110,000       110,000  
Board fees     751,660       657,934  
Other     (25,839 )     57,101  
    $ 1,829,119     $ 1,697,714  

 
    December 31,     December 31,  
    2013     2012  
Payroll related   $ 479,087     $ 329,191  
Estimated damage liability that may not be covered by insurance     393,592       300,000  
Estimated settlement with vendor in Europe     –       300,000  
Professional fees     110,000       269,710  
Accrued board fees     657,934       241,011  
Consultant fees     –       133,777  
Other     57,101       109,819  
    $ 1,697,714     $ 1,683,508