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Note 7 - Accrued Expenses
 12 Months Ended
Dec. 31, 2013
Payables and Accruals [Abstract]  
Accounts Payable and Accrued Liabilities Disclosure [Text Block]
7.
Accrued Expenses

The accrued expenses consisted of:

   
As of December 31,
2012
   
As of December 31,
2013
 
             
Accrued payroll expenses
    144,286       224,396  
Accrued interest
    117,605       82,589  
Accrued general and administrative expenses
    359,050       167,485  
Accrued commissions
    98,199       157,803  
Other accrued expenses
    424,486       370,172  
Total
    1,143,626       1,002,445