Note 8 - Equity (Details Textual) - USD ($)			3 Months Ended		9 Months Ended
	Apr. 01, 2022	Oct. 01, 2021	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Jul. 01, 2022	Jan. 03, 2022	Dec. 31, 2021	Sep. 15, 2021	Jun. 04, 2021
Class Of Stock [Line Items]
Common stock, shares issued			32,270,452		32,270,452				31,873,428
Preferred stock, shares authorized			1,000,000		1,000,000				1,000,000
Preferred stock, par value			$ 0.01		$ 0.01				$ 0.01
Preferred stock, shares outstanding			500		500				500
Conversion price					$ 0.20
Contractual life of warrants			4 years 3 months 18 days		4 years 3 months 18 days
Series A preferred stock
Class Of Stock [Line Items]
Preferred stock, shares authorized			20,000		20,000				20,000
Preferred stock, par value			$ 0.01		$ 0.01
Preferred stock, shares outstanding			500		500				500
Preferred stock, dividend rate percentage					10.00%
Preferred stock, per share issuance price					$ 100
Director [Member]
Class Of Stock [Line Items]
Common stock, shares issued	9,708							165,700
Preferred stock, shares authorized			1,000,000		1,000,000
Minimum [Member]
Class Of Stock [Line Items]
Percentage of RSUs granted to executives		0.00%
Maximum [Member]
Class Of Stock [Line Items]
Percentage of RSUs granted to executives		300.00%
Maximum [Member] | Series A preferred stock
Class Of Stock [Line Items]
Preferred dividends undeclared			$ 100		$ 100
Restricted Stock Awards [Member]
Class Of Stock [Line Items]
Compensation expense related to these share-based payments			100,000	$ 100,000	200,000	$ 200,000
Unrecognized costs from stock-based awards			200,000		$ 200,000
Unrecognized compensation cost recognition period					0 years
Granted to executives					138,262	90,517
Value of award			300,000		$ 300,000
Restricted Stock Awards [Member] | Employees [Member]
Class Of Stock [Line Items]
Granted to executives	138,262
Restricted Stock Units [Member]
Class Of Stock [Line Items]
Unrecognized costs from stock-based awards			$ 4,000,000.0		$ 4,000,000.0
Unrecognized compensation cost recognition period					3 years 3 months 18 days
Restricted Stock Units [Member] | Employees [Member]
Class Of Stock [Line Items]
Granted to executives		1,220,930
Restricted Stock Units [Member] | Minimum [Member]
Class Of Stock [Line Items]
Percentage of number of units granted at vesting date that entitle recipients to shares of common stock					0.00%
Restricted Stock Units [Member] | Maximum [Member]
Class Of Stock [Line Items]
Percentage of number of units granted at vesting date that entitle recipients to shares of common stock					300.00%
2020 Equity Incentive Plan [Member]
Class Of Stock [Line Items]
Common stock shares available for issuance										1,500,000
Common stock remaining shares available for future issuance			862,180		862,180
2020 Equity Incentive Plan [Member] | Minimum [Member]
Class Of Stock [Line Items]
Common stock shares available for issuance										3,620,000
2020 Equity Incentive Plan [Member] | Maximum [Member]
Class Of Stock [Line Items]
Common stock shares available for issuance										5,120,000
Operating Partnership [Member]
Class Of Stock [Line Items]
Operating partnership percentage					92.30%
OP Unit Redemption [Member]
Class Of Stock [Line Items]
Common stock, shares issued	60,106						36,064
OP Unit Redemption [Member] | Operating Partnership [Member]
Class Of Stock [Line Items]
Common stock, shares issued	60,106						36,064
Lamont Street [Member]
Class Of Stock [Line Items]
Warrants to purchase of common stock											200,000
Warrants to purchase of common stock, Exercise price											$ 2.50