Note 1 - Organization and Nature of Business - Schedule of Real Estate Property (Details) $ in Thousands	Dec. 31, 2021 USD ($)
Real Estate Properties [Line Items]
Total Gross Real Estate Assets	$ 257,917
Avondale Shops [Member] | Washington, D.C. [Member]
Real Estate Properties [Line Items]
Total Gross Real Estate Assets	8,393
Brookhill Azalea Shopping Center [Member] | Richmond, VA [Member]
Real Estate Properties [Line Items]
Total Gross Real Estate Assets	17,270
Cromwell Field Shopping Center [Member] | Glen Burnie, MD [Member]
Real Estate Properties [Line Items]
Total Gross Real Estate Assets	18,511
Coral Hills Shopping Center [Member] | Capitol Heights, MD [Member]
Real Estate Properties [Line Items]
Total Gross Real Estate Assets	16,682
Crestview Square Shopping Center [Member] | Landover Hills, MD [Member]
Real Estate Properties [Line Items]
Total Gross Real Estate Assets	18,676
Dekalb Plaza [Member] | East Norriton, PA [Member]
Real Estate Properties [Line Items]
Total Gross Real Estate Assets	27,628
The Shops At Greenwood Village [Member] | Greenwood Village, CO [Member]
Real Estate Properties [Line Items]
Total Gross Real Estate Assets	31,273
Highlandtown Village Shopping Center [Member] | Baltimore, MD [Member]
Real Estate Properties [Line Items]
Total Gross Real Estate Assets	7,401
Hollinswood Shopping Center [Member] | Baltimore, MD [Member]
Real Estate Properties [Line Items]
Total Gross Real Estate Assets	25,401
Lamar Station Plaza East [Member] | Lakewood, CO [Member]
Real Estate Properties [Line Items]
Total Gross Real Estate Assets	6,106
Midtown Colonial [Member] | Williamsburg, VA [Member]
Real Estate Properties [Line Items]
Total Gross Real Estate Assets	14,901
Midtown Lamonticello [Member] | Williamsburg, VA [Member]
Real Estate Properties [Line Items]
Total Gross Real Estate Assets	16,241
Spotswood Valley Square Shopping Center | Harrisonburg, VA [Member]
Real Estate Properties [Line Items]
Total Gross Real Estate Assets	14,671
Vista Shops at Golden Mile [Member] | Fredrick, MD [Member]
Real Estate Properties [Line Items]
Total Gross Real Estate Assets	14,937
West Broad Commons Shopping Center [Member] | Richmond, VA [Member]
Real Estate Properties [Line Items]
Total Gross Real Estate Assets	$ 19,826