Quarterly report pursuant to Section 13 or 15(d)

Note 14 - Preferred Stock and Warrants - Preferred Stock Information (Details)

v3.21.2
Note 14 - Preferred Stock and Warrants - Preferred Stock Information (Details) - USD ($)
Sep. 25, 2021
Mar. 27, 2021
Designated shares (in shares) 1,000,000 1,000,000
Series B Preferred Stock [Member]    
Designated shares (in shares) 10,000 10,000
Shares issued (in shares) 9,245 9,245
Preferred Stock, Shares Outstanding, Ending Balance (in shares) 9,245 9,245
Preferred Stock, Liquidation Preference, Value $ 2,136,000 $ 2,136,000
Series C Preferred Stock [Member]    
Designated shares (in shares) 3,500 3,500
Shares issued (in shares) 3,425 3,425
Preferred Stock, Shares Outstanding, Ending Balance (in shares) 3,425 3,425
Preferred Stock, Liquidation Preference, Value $ 500,000 $ 500,000
Series D Preferred Stock [Member]    
Designated shares (in shares) 6,000 6,000
Shares issued (in shares) 5,112 5,112
Preferred Stock, Shares Outstanding, Ending Balance (in shares) 5,112 5,112
Preferred Stock, Liquidation Preference, Value $ 731,000 $ 731,000
Series E Preferred Stock [Member]    
Designated shares (in shares) 100,000 100,000
Shares issued (in shares) 5,700 9,200
Preferred Stock, Shares Outstanding, Ending Balance (in shares) 5,700 9,200
Preferred Stock, Liquidation Preference, Value $ 214,000 $ 345,000
Series B, C, D, and E Preferred Stock [Member]    
Designated shares (in shares) 119,500 119,500
Shares issued (in shares) 23,482 26,982
Preferred Stock, Shares Outstanding, Ending Balance (in shares) 23,482 26,982
Preferred Stock, Liquidation Preference, Value $ 3,581,000 $ 3,712,000