Note 4 - Debentures and Notes Payable (Details Textual) - USD ($) | Jun. 21, 2017 | Mar. 30, 2017 | Jun. 30, 2019 | Jun. 30, 2018 | Dec. 31, 2018 | Sep. 30, 2018 | Apr. 18, 2016 | Feb. 24, 2016 | Jun. 01, 2015 | Nov. 03, 2006 |
Notes Payable, Related Parties | | | $ 1,992,434 | | $ 1,702,300 | | | | | |
Amortization of Debt Discount (Premium) | | | $ 45,134 | $ 90,222 | | | | | | |
Six Point Zero Five Percent Insurance Premium Finance Agreement, Due July 2019 [Member] | | | | | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | | | 6.05% | | 6.05% | 6.05% | | | | |
Debt Instrument, Face Amount | | | | | | $ 48,855 | | | | |
Debt Instrument, Periodic Payment, Total | | | $ 4,441 | | | | | | | |
Repayments of Debt | | | $ 26,648 | | | | | | | |
Four Point Seventy Five Percent Convertible Debenture Due September 2019 [Member] | | | | | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | | | 4.75% | | 4.75% | | | | | 4.75% |
Debt Instrument, Face Amount | | | | | | | | | | $ 100,000 |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | | | | | | | | | | 61 |
Class of Warrant or Right, Exercise Price of Warrants or Rights | | | | | | | | | | $ 114,450 |
Fourteen Percent Term Loan Due September 2019, One [Member] | | | | | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | | | 14.00% | | 14.00% | | | | | |
Notes Payable, Related Parties | | | $ 374,993 | | $ 374,993 | | | | | |
Fourteen Percent Term Loan Due September 2019, One [Member] | Carlton James North Dakota Limited [Member] | | | | | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | | | | | | | 14.00% | | | |
Debt Agreement, Maximum Borrowing Capacity | | | | | | | $ 100,000 | | | |
Debt Instrument, Interest Rate, Monthly | | | | | | | 1.167% | | | |
Notes Payable, Related Parties | | | 374,993 | | | | | | | |
Debt Instrument, Advances in Excess of Facility Limit | | | $ 274,993 | | | | | | | |
Fourteen Percent Term Loan Due September 2019, Two [Member] | | | | | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | | | 14.00% | | 14.00% | | | | | |
Notes Payable, Related Parties | | | $ 746,500 | | $ 621,500 | | | | | |
Fourteen Percent Term Loan Due September 2019, Two [Member] | Co-chairman of Board of Directors [Member] | | | | | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | | | | | | | | 14.00% | | |
Debt Agreement, Maximum Borrowing Capacity | | | | | | | | $ 300,000 | | |
Debt Instrument, Interest Rate, Monthly | | | | | | | | 1.167% | | |
Notes Payable, Related Parties | | | 746,500 | | | | | | | |
Debt Instrument, Advances in Excess of Facility Limit | | | $ 446,500 | | | | | | | |
Fourteen Percent Term Loan Due September 2019, Three [Member] | | | | | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | | | 14.00% | | 14.00% | | | | | |
Notes Payable, Related Parties | | | $ 520,941 | | $ 400,941 | | | | | |
Fourteen Percent Term Loan Due September 2019, Three [Member] | Carlton James North Dakota Limited [Member] | | | | | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | | | | | | | | | 14.00% | |
Debt Instrument, Face Amount | | | | | | | | | $ 500,000 | |
Debt Instrument, Interest Rate, Monthly | | | | | | | | | 1.167% | |
Notes Payable, Related Parties | | | 520,941 | | | | | | | |
Debt Instrument, Advances in Excess of Facility Limit | | | $ 20,941 | | | | | | | |
Seven Percent Convertible Promissory Note Due September 2019, One [Member] | | | | | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | | | 7.00% | | 7.00% | | | | | |
Notes Payable, Related Parties | | | $ 250,000 | | $ 228,627 | | | | | |
Seven Percent Convertible Promissory Note Due September 2019, One [Member] | Co-chairman of Board of Directors [Member] | | | | | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | | 7.00% | | | | | | | | |
Debt Instrument, Face Amount | | $ 250,000 | | | | | | | | |
Debt Instrument, Convertible, Conversion Percentage | | 8.00% | | | | | | | | |
Debt Instrument, Unamortized Discount, Total | | $ 250,000 | | | | | | | | |
Amortization of Debt Discount (Premium) | | | $ 21,373 | 65,220 | | | | | | |
Seven Percent Convertible Promissory Note Due September 2019, Two [Member] | | | | | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | | | 7.00% | | 7.00% | | | | | |
Notes Payable, Related Parties | | | $ 100,000 | | $ 76,239 | | | | | |
Seven Percent Convertible Promissory Note Due September 2019, Two [Member] | Co-chairman of Board of Directors [Member] | | | | | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | 7.00% | | | | | | | | | |
Debt Instrument, Face Amount | $ 100,000 | | | | | | | | | |
Debt Instrument, Convertible, Conversion Percentage | 4.00% | | | | | | | | | |
Debt Instrument, Unamortized Discount, Total | $ 100,000 | | | | | | | | | |
Amortization of Debt Discount (Premium) | | | $ 23,761 | $ 25,002 | | | | | | |