Note 7 - Leases, Commitments and Contingencies (Details Textual)						1 Months Ended	3 Months Ended		12 Months Ended	14 Months Ended	21 Months Ended
	Sep. 01, 2019	Apr. 17, 2018 USD ($) $ / shares shares	Oct. 17, 2017 USD ($) $ / shares shares	Oct. 17, 2016 USD ($) a $ / shares shares	Mar. 25, 2014 USD ($)	Jul. 31, 2018 USD ($)	Dec. 31, 2019 USD ($) $ / shares	Dec. 31, 2018 USD ($)	Dec. 31, 2018 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2016 USD ($)	Oct. 01, 2019 USD ($)	Sep. 30, 2019 USD ($) $ / shares	Jun. 26, 2019 shares	Jan. 14, 2015 USD ($) a
Lessee, Operating Lease, Term of Contract							47 years
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares							$ 1.52						$ 1.52
Capital Funding Commitment Fulfilled						$ 2.60
Common Stock, Par or Stated Value Per Share | $ / shares							$ 0.0001						$ 0.0001
Operating Lease, Percentage of Leassee's Gross Revenue	15.00%
Operating Lease, Right-of-Use Asset							$ 6,964,302					$ 6,980,957
Operating Lease, Liability, Total							4,254,705					4,256,869
Prepaid Rent													57,959
Operating Lease, Liability, Current							9,093
Operating Lease, Liability, Noncurrent							4,245,612
Operating Cash Flows from Operating Leases							85,375
Operating Lease, Expense							103,666	$ 103,615
1550 Wewatta St, Denver, CO 80202 [Member]
Operating Lease, Expense							$ 3,801		$ 3,801
BASK [Member]
Lessee, Operating Sublease, Term	15 years
Lessee, Operating Sublease, Percentage of Gross Revenues	15.00%
Additional Paid-in Capital [Member]
Warrants Issued During Period, Value, Sale Leaseback Transaction				$ 1,899,966
Stock Issued During Period, Value, Sale Leaseback Transaction				73,000
Warrants Issued for Lease Amendment #1 [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares			100,000
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares			$ 1.50
Warrants Issued for Lease Amendment #3 [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares		100,000
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares		$ 1.50
Allocated Warrants or Rights Expense								$ 0
Warrants Issued In Connection With Sale Leaseback Transaction [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares														3,640,000
Sale Leaseback to MMP [Member]
Payments to Acquire Land				$ 925,000
Lessee, Operating Lease, Term of Contract				50 years
Lessee Leasing Arrangements, Operating Leases, Number of Renewal Periods				4
Lessee, Operating Lease, Renewal Term				10 years
Sale Leaseback Transaction, Monthly Rental Payments				$ 30,000
Sale Leaseback Transaction, Monthly Rental Payments, Per Square Foot				0.38
Sale Leaseback Transaction, Monthly Rental Payments, Percentage of Gross Monthly Sales				1.50%
Sale Leaseback Transaction, Monthly Rental Payments, Adjustment Period				5 years
Sale Leaseback Transaction, Period Available to Obtain Capital Funding for Construction of the First Phase Building		1 year 240 days	1 year 120 days	180 days
Sales Leaseback Transaction, Amount of Capital Funding to Obtain For Construction of the First Phase Building		$ 2,600,000	$ 2,600,000	$ 2,600,000
Sale Leaseback Transaction, Additional Period Available to Obtain Capital Funding for Construction of the First Phase Building				180 days
Sale Leaseback Transaction, Period Unable to Obtain Capital Funding for Construction of the First Phase Building, After Which the Arrangement Will Terminate				1 year
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares				3,640,000
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares				$ 1
Sale Leaseback Transaction, Discount to the Purchase Price, Monthly Reduction in Payments				$ 1,542
Stock Issued During Period, Shares, Sale Leaseback Transaction | shares				100,000
Common Stock, Par or Stated Value Per Share | $ / shares				$ 0.0001
Sale Leaseback to MMP [Member] | Accounting Standards Update 2016-02 [Member]
Operating Lease, Right-of-Use Asset												2,724,088
Prepaid Rent												$ (2,724,088)
Sale Leaseback to MMP [Member] | Measurement Input, Risk Free Interest Rate [Member]
Warrants and Rights Outstanding, Measurement Input				0.0112
Sale Leaseback to MMP [Member] | Measurement Input, Expected Term [Member]
Warrants and Rights Outstanding, Measurement Input				4
Sale Leaseback to MMP [Member] | Measurement Input, Price Volatility [Member]
Warrants and Rights Outstanding, Measurement Input				1.15
Massachusetts Land Purchase [Member]
Area of Land | a				52.6											52.6
Deposits on Land															$ 100,000
Land, Selling Price				$ 4,475,000						$ 4,325,000
Payments to Acquire Land										$ 725,000	$ 925,000
Payments to Acquire Land Held-for-use				$ 3,550,000
Chief Executive Officer [Member]
Officer Employment Agreement, Initial Term					3 years
Chief Executive Officer [Member] | Officer Employment Agreement [Member]
Officer Employment Agreement, Time Devoted, Percentage					50.00%
Officer Employment Agreement, Monthly Payment					$ 12,000