Annual report pursuant to Section 13 and 15(d)

Note 6 - Note Payable (Details Textual)

v3.6.0.2
Note 6 - Note Payable (Details Textual) - USD ($)
1 Months Ended 2 Months Ended 12 Months Ended
Jun. 20, 2016
Jul. 15, 2015
Apr. 06, 2015
Mar. 16, 2015
Feb. 19, 2015
Oct. 01, 2014
Sep. 30, 2014
May 31, 2015
Nov. 30, 2014
Dec. 31, 2016
Feb. 28, 2015
Class of Warrant or Right, Number of Securities Called by Warrants or Rights                 47,751 425,274 75,697
Class of Warrant or Right, Exercise Price of Warrants or Rights                 $ 4.24   $ 4
Warrant Term                 5 years    
September 2014 Issuance Related to 2014 Loan Agreement [Member]                      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights             58,962        
Class of Warrant or Right, Exercise Price of Warrants or Rights             $ 4.24        
Warrant Term             10 years 10 years      
May 2015 Issuance Related to 2014 Loan Agreement [Member]                      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights               3,125      
Class of Warrant or Right, Exercise Price of Warrants or Rights               $ 2.96      
June 2016 Issuance Related to 2016 Loan Agreement [Member]                      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights 100,402                 100,402  
Class of Warrant or Right, Exercise Price of Warrants or Rights $ 4.98                 $ 4.98  
Warrant Term 10 years                    
September 2014 Term Loan [Member]                      
Debt Instrument, Face Amount             $ 5,000,000        
September 2014 Term Loan [Member] | First Tranche [Member]                      
Proceeds from Loans           $ 2,500,000          
September 2014 Term Loan [Member] | Second Tranche [Member]                      
Debt Instrument, Face Amount             $ 1,500,000        
Proceeds from Loans     $ 500,000 $ 500,000 $ 500,000            
September 2014 Term Loan [Member] | Third Tranche [Member]                      
Proceeds from Loans   $ 1,000,000                  
The 2016 Loan Agreement [Member] | Western Alliance Bank [Member]                      
Debt Instrument, Face Amount $ 10,000,000                    
Debt Instrument Repayment Of Principal And Interest Number Of Installments 30                    
Debt Instrument, Interest Rate, Effective Percentage                   7.59%  
Debt Instrument, Covenant, Actual Performance Revenue to Planned Revenue, Minimum, Percentage                   80.00%  
Debt Instrument, Covenant, Unrestricted Cash in Accounts to Indebtedness Ratio                   1.25  
The 2016 Loan Agreement [Member] | Western Alliance Bank [Member] | Minimum [Member]                      
Debt Instrument, Interest Rate, Stated Percentage 7.40%                    
The 2016 Loan Agreement [Member] | Western Alliance Bank [Member] | London Interbank Offered Rate (LIBOR) [Member]                      
Debt Instrument, Basis Spread on Variable Rate 6.96%                    
The 2016 Loan Agreement [Member] | First Tranche [Member] | Western Alliance Bank [Member]                      
Proceeds from Issuance of Long-term Debt $ 7,500,000                    
The 2016 Loan Agreement [Member] | Second Tranche [Member] | Western Alliance Bank [Member]                      
Proceeds from Issuance of Long-term Debt $ 2,500,000