| Summary of Segment Information | The following tables summarize segment information (in 000's):   
       
        |  |  |  |  |  |  |  |  |  |  |  
        |   |   | For the Three Months Ended December 31, |   |   |  
        |   |   | 2021 |   |   | 2020 |   |   |  
        | Revenues |   |   |   |   |   |   |   |  
        | Retail |   | $ | 26,211 |   |   | $ | 22,370 |   |   |  
        | Flooring Manufacturing |   |   | 32,872 |   |   |   | 30,222 |   |   |  
        | Steel Manufacturing |   |   | 12,366 |   |   |   | 9,735 |   |   |  
        | Corporate & Other |   |   | 3,709 |   |   |   | 127 |   |   |  
        | Total revenues |   | $ | 75,158 |   |   | $ | 62,454 |   |   |  
        |    |   |   |   |   |   |   |   |  
        | Gross profit |   |   |   |   |   |   |   |  
        | Retail |   | $ | 13,390 |   |   | $ | 12,047 |   |   |  
        | Flooring Manufacturing |   |   | 9,029 |   |   |   | 8,325 |   |   |  
        | Steel Manufacturing |   |   | 3,615 |   |   |   | 1,776 |   |   |  
        | Corporate & Other |   |   | 1,582 |   |   |   | 121 |   |   |  
        | Total gross profit |   | $ | 27,616 |   |   | $ | 22,269 |   |   |  
        |    |   |   |   |   |   |   |   |  
        | Operating income (loss) |   |   |   |   |   |   |   |  
        | Retail |   | $ | 4,810 |   |   | $ | 4,493 |   |   |  
        | Flooring Manufacturing |   |   | 4,608 |   |   |   | 4,150 |   |   |  
        | Steel Manufacturing |   |   | 1,654 |   |   |   | 144 |   |   |  
        | Corporate & Other |   |   | (665 | ) |   |   | (1,496 | ) |   |  
        | Total opertaing income |   | $ | 10,407 |   |   | $ | 7,291 |   |   |  
        |    |   |   |   |   |   |   |   |  
        | Depreciation and amortization |   |   |   |   |   |   |   |  
        | Retail |   | $ | 340 |   |   | $ | 347 |   |   |  
        | Flooring Manufacturing |   |   | 779 |   |   |   | 965 |   |   |  
        | Steel Manufacturing |   |   | 234 |   |   |   | 393 |   |   |  
        | Corporate & Other |   |   | 196 |   |   |   | 9 |   |   |  
        | Total depreciation and amortization |   | $ | 1,549 |   |   | $ | 1,714 |   |   |  
        |    |   |   |   |   |   |   |   |  
        | Interest expenses |   |   |   |   |   |   |   |  
        | Retail |   | $ | 152 |   |   | $ | 660 |   |   |  
        | Flooring Manufacturing |   |   | 431 |   |   |   | 410 |   |   |  
        | Steel Manufacturing |   |   | 298 |   |   |   | 268 |   |   |  
        | Corporate & Other |   |   | 136 |   |   |   | 132 |   |   |  
        | Total interest expenses |   | $ | 1,017 |   |   | $ | 1,470 |   |   |  
        |    |   |   |   |   |   |   |   |  
        | Net income (loss) before provision for income taxes |   |   |   |   |   |   |   |  
        | Retail |   | $ | 4,700 |   |   | $ | 4,173 |   |   |  
        | Flooring Manufacturing |   |   | 4,045 |   |   |   | 3,722 |   |   |  
        | Steel Manufacturing |   |   | 1,313 |   |   |   | (164 | ) |   |  
        | Corporate & Other |   |   | (552 | ) |   |   | (1,002 | ) |   |  
        | Total net income before provision for income taxes |   | $ | 9,506 |   |   | $ | 6,729 |   |   |  |