| Summary of Segment Information | The following tables summarize segment information for the years ended September 30, 2020 and 2019:   
|   |   | Year Ended |   |   | Year Ended |   |  
|   |   | September 30, 2020 |   |   | September 30, 2019 |   |  
|   |   |   |   |   |   | % of |   |   |   |   |   |   | % of Total |   |  
|   |   | Net Revenue |   |   | Total Revenue |   |   | Net Revenue |   |   | Total Revenue |   |  
| Retail |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
|   Movies, Music, Games and Other |   | $ | 69,602 |   |   |   | 36.3 | % |   | $ | 76,961 |   |   |   | 39.8 | % |  
|   Appliance |   |   | 3,961 |   |   |   | 2.1 | % |   |   | 23,740 |   |   |   | 12.3 | % |  
| Flooring manufacturing |   |   | 109,642 |   |   |   | 57.2 | % |   |   | 91,951 |   |   |   | 47.6 | % |  
| Steel manufacturing |   |   | 7,962 |   |   |   | 4.2 | % |   |   | — |   |   |   | 0.0 | % |  
| Corporate and other |   |   | 553 |   |   |   | 0.3 | % |   |   | 636 |   |   |   | 0.3 | % |  
| Total Revenue |   | $ | 191,720 |   |   |   | 100.0 | % |   | $ | 193,288 |   |   |   | 100.0 | % |  
|   |   | Year Ended September 30, |   |  
|   |   | 2020 |   |   | 2019 |   |  
| Revenues |   |   |   |   |   |   |   |   |  
| Retail |   | $ | 73,563 |   |   | $ | 100,701 |   |  
| Flooring Manufacturing |   |   | 109,642 |   |   |   | 91,951 |   |  
| Steel Manufacturing |   |   | 7,962 |   |   |   | — |   |  
| Corporate & Other |   |   | 553 |   |   |   | 636 |   |  
|   |   | $ | 191,720 |   |   | $ | 193,288 |   |  
| Gross profit |   |   |   |   |   |   |   |   |  
| Retail |   | $ | 40,779 |   |   | $ | 45,154 |   |  
| Flooring Manufacturing |   |   | 32,857 |   |   |   | 25,122 |   |  
| Steel Manufacturing |   |   | 1,164 |   |   |   | — |   |  
| Corporate & Other |   |   | 518 |   |   |   | 597 |   |  
|   |   | $ | 75,317 |   |   | $ | 70,873 |   |  
| Operating income (loss) |   |   |   |   |   |   |   |   |  
| Retail |   | $ | 8,737 |   |   | $ | (9,074 | ) |  
| Flooring Manufacturing |   |   | 16,082 |   |   |   | 11,735 |   |  
| Steel Manufacturing |   |   | 172 |   |   |   | — |   |  
| Corporate & Other |   |   | (4,569 | ) |   |   | 595 |   |  
|   |   | $ | 20,422 |   |   | $ | 3,256 |   |  
| Depreciation and amortization |   |   |   |   |   |   |   |   |  
| Retail |   | $ | 1,779 |   |   | $ | 2,816 |   |  
| Flooring Manufacturing |   |   | 3,564 |   |   |   | 2,583 |   |  
| Steel Manufacturing |   |   | 450 |   |   |   | — |   |  
| Corporate & Other |   |   | 70 |   |   |   | 274 |   |  
|   |   | $ | 5,862 |   |   | $ | 5,673 |   |  
| Interest expense, net |   |   |   |   |   |   |   |   |  
| Retail |   | $ | 3,008 |   |   | $ | 4,543 |   |  
| Flooring Manufacturing |   |   | 1,812 |   |   |   | 1,681 |   |  
| Steel Manufacturing |   |   | 260 |   |   |   | — |   |  
| Corporate & Other |   |   | 174 |   |   |   | 91 |   |  
|   |   | $ | 5,254 |   |   | $ | 6,315 |   |  
| Income before provision for income taxes |   |   |   |   |   |   |   |   |  
| Retail |   | $ | 5,596 |   |   | $ | (12,313 | ) |  
| Flooring Manufacturing |   |   | 17,509 |   |   |   | 11,026 |   |  
| Steel Manufacturing |   |   | (908 | ) |   |   | — |   |  
| Corporate & Other |   |   | (6,581 | ) |   |   | (4,350 | ) |  
|   |   | $ | 15,616 |   |   | $ | (5,637 | ) |    |