Quarterly report pursuant to Section 13 or 15(d)

Note 10 - Leases - Amount, Timing and Uncertainty of Cash Flows Arising From Operating Leases (Details)

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Note 10 - Leases - Amount, Timing and Uncertainty of Cash Flows Arising From Operating Leases (Details) - USD ($)
Jun. 30, 2019
Jan. 01, 2019
Dec. 31, 2018
2019 (remaining) $ 153,858    
2020 319,034    
2021 306,781    
2022 253,339    
Total undiscounted operating lease payments 1,033,012    
Less imputed interest 168,313    
Present value of operating lease liabilities 864,699 $ 998,602  
Current lease liabilities 250,946  
Noncurrent lease liabilities $ 613,753  
Weighted-average remaining lease term for operating leases (in years) (Year) 3 years 73 days    
Weighted-average discount rate for operating leases 12.30%