| Equity Method Investments [Table Text Block] |
| (Dollars in thousands) | | April 30, 2018 | | | | | Homebuilding | | | Land Development | | | Total | | | Assets: | | | | | | | | | | | | | | Cash and cash equivalents | | $ | 31,166 | | | $ | 2,414 | | | $ | 33,580 | | | Inventories | | | 651,968 | | | | 6,923 | | | | 658,891 | | | Other assets | | | 29,695 | | | | - | | | | 29,695 | | | Total assets | | $ | 712,829 | | | $ | 9,337 | | | $ | 722,166 | | | | | | | | | | | | | | | | | Liabilities and equity: | | | | | | | | | | | | | | Accounts payable and accrued liabilities | | $ | 96,770 | | | $ | 504 | | | $ | 97,274 | | | Notes payable | | | 371,382 | | | | - | | | | 371,382 | | | Total liabilities | | | 468,152 | | | | 504 | | | | 468,656 | | | Equity of: | | | | | | | | | | | | | | Hovnanian Enterprises, Inc. | | | 79,690 | | | | 3,914 | | | | 83,604 | | | Others | | | 164,987 | | | | 4,919 | | | | 169,906 | | | Total equity | | | 244,677 | | | | 8,833 | | | | 253,510 | | | Total liabilities and equity | | $ | 712,829 | | | $ | 9,337 | | | $ | 722,166 | | | Debt to capitalization ratio | | | 60 | % | | | 0 | % | | | 59 | % | | (Dollars in thousands) | | October 31, 2017 | | | | | Homebuilding | | | Land Development | | | Total | | | Assets: | | | | | | | | | | | | | | Cash and cash equivalents | | $ | 60,580 | | | $ | 194 | | | $ | 60,774 | | | Inventories | | | 666,017 | | | | 9,162 | | | | 675,179 | | | Other assets | | | 36,026 | | | | - | | | | 36,026 | | | Total assets | | $ | 762,623 | | | $ | 9,356 | | | $ | 771,979 | | | | | | | | | | | | | | | | | Liabilities and equity: | | | | | | | | | | | | | | Accounts payable and accrued liabilities | | $ | 121,646 | | | $ | 429 | | | $ | 122,075 | | | Notes payable | | | 330,642 | | | | - | | | | 330,642 | | | Total liabilities | | | 452,288 | | | | 429 | | | | 452,717 | | | Equity of: | | | | | | | | | | | | | | Hovnanian Enterprises, Inc. | | | 88,884 | | | | 3,746 | | | | 92,630 | | | Others | | | 221,451 | | | | 5,181 | | | | 226,632 | | | Total equity | | | 310,335 | | | | 8,927 | | | | 319,262 | | | Total liabilities and equity | | $ | 762,623 | | | $ | 9,356 | | | $ | 771,979 | | | Debt to capitalization ratio | | | 52 | % | | | 0 | % | | | 51 | % | | | | For the Three Months Ended April 30, 2018 | | | (In thousands) | | Homebuilding | | | Land Development | | | Total | | | | | | | | | | | | | | | | | Revenues | | $ | 96,931 | | | $ | 2,343 | | | $ | 99,274 | | | Cost of sales and expenses | | | (102,230 | ) | | | (2,123 | ) | | | (104,353 | ) | | Joint venture net (loss) income | | $ | (5,299 | ) | | $ | 220 | | | $ | (5,079 | ) | | Our share of net income | | $ | 1,296 | | | $ | 109 | | | $ | 1,405 | | | | | For the Three Months Ended April 30, 2017 | | | (In thousands) | | Homebuilding | | | Land Development | | | Total | | | | | | | | | | | | | | | | | Revenues | | $ | 86,556 | | | $ | 1,658 | | | $ | 88,214 | | | Cost of sales and expenses | | | (87,957 | ) | | | (1,841 | ) | | | (89,798 | ) | | Joint venture net loss | | $ | (1,401 | ) | | $ | (183 | ) | | $ | (1,584 | ) | | Our share of net loss | | $ | (4,583 | ) | | $ | (92 | ) | | $ | (4,675 | ) | | | | For the Six Months Ended April 30, 2018 | | | (In thousands) | | Homebuilding | | | Land Development | | | Total | | | | | | | | | | | | | | | | | Revenues | | $ | 155,496 | | | $ | 3,618 | | | $ | 159,114 | | | Cost of sales and expenses | | | (174,366 | ) | | | (3,281 | ) | | | (177,647 | ) | | Joint venture net (loss) income | | $ | (18,870 | ) | | $ | 337 | | | $ | (18,533 | ) | | Our share of net (loss) income | | $ | (3,903 | ) | | $ | 168 | | | $ | (3,735 | ) | | | | For the Six Months Ended April 30, 2017 | | | (In thousands) | | Homebuilding | | | Land Development | | | Total | | | | | | | | | | | | | | | | | Revenues | | $ | 151,493 | | | $ | 2,860 | | | $ | 154,353 | | | Cost of sales and expenses | | | (155,183 | ) | | | (2,823 | ) | | | (158,006 | ) | | Joint venture net (loss) income | | $ | (3,690 | ) | | $ | 37 | | | $ | (3,653 | ) | | Our share of net (loss) income | | $ | (6,264 | ) | | $ | 18 | | | $ | (6,246 | ) |
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