Annual report pursuant to Section 13 and 15(d)

Note 19 - Supplemental Disclosure for Statements of Cash Flows (Details Textual)

Note 19 - Supplemental Disclosure for Statements of Cash Flows (Details Textual) - USD ($)	1 Months Ended		12 Months Ended
	May 31, 2020	Feb. 29, 2020	Dec. 31, 2020	Dec. 31, 2019	Nov. 30, 2020	Nov. 30, 2019	Jan. 01, 2019	Nov. 30, 2018
Interest Paid, Excluding Capitalized Interest, Operating Activities			$ 6,000	$ 8,000
Operating Lease, Right-of-Use Asset			$ 250,095	$ 281,688			$ 406,842
Stock Issued During Period, Shares, Issued for Employee Bonuses (in shares)			32,651	8,128
Issuance of Stock to Defined Contribution Plan for Employer Matching Contribution			$ 39,834	$ 19,588
Stock Issued During Period, Shares, Employee Benefit Plan (in shares)			32,651	8,128
Operating Lease, Liability, Total			$ 590,957				998,602
Conversion from Series C Preferred Stock To Common Stock [Member]
Conversion of Stock, Shares Converted (in shares)			420,000
Conversion of Stock, Shares Issued (in shares)			1,425,076
Conversion from Series D Preferred Stock To Common Stock [Member]
Conversion of Stock, Shares Converted (in shares)			17,750
Conversion of Stock, Shares Issued (in shares)			827,280
Series C Preferred Stock [Member]
Preferred Stock, Deemed Dividend			$ 467,000
Conversion of Stock, Shares Converted (in shares)			420,000
Series D Preferred Stock [Member]
Preferred Stock, Deemed Dividend			$ 197,000
Conversion of Stock, Shares Converted (in shares)			17,750
Series OO Warrants [Member]
Class of Warrant or Right, Exercised During Period (in shares)	411,000		411,000
Issued Stock Upon Exercise of Warrants, Shares (in shares)	300,595		300,595
Notes Payable Issued for Prepayment of Insurance Premiums [Member] \| IPFS [Member]
Debt Instrument, Face Amount					$ 442,000	$ 349,000		$ 393,000
Debt Instrument, Interest Rate, Stated Percentage					3.50%	5.00%		5.10%
Common Stock [Member]
Stock Issued During Period, Shares, Issued for Employee Bonuses (in shares)			94,159
Stock Issued During Period, Shares, Employee Benefit Plan (in shares)			32,651	8,128
Issued Stock Upon Exercise of Warrants, Shares (in shares)			300,595
Employees [Member] \| Common Stock [Member]
Stock Issued During Period, Shares, Issued for Employee Bonuses (in shares)			94,159
Issuance of Stock to Defined Contribution Plan for Employer Matching Contribution			$ 172,000
Accounting Standards Update 2016-02 [Member]
Operating Lease, Right-of-Use Asset							407,000
Operating Lease, Liability, Total							$ 407,000
Office Lease [Member]
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability		$ 100,432