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Note 20 - Investments in Unconsolidated Homebuilding and Land Development Joint Ventures (Details) - Unconsolidated Homebuilding and Land Development Joint Ventures - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
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Oct. 31, 2015 | Jul. 31, 2015 | Apr. 30, 2015 | Jan. 31, 2015 | Oct. 31, 2014 | Jul. 31, 2014 | Apr. 30, 2014 | Jan. 31, 2014 | Oct. 31, 2015 | Oct. 31, 2014 | Oct. 31, 2013
Equity of: |  |  |  |  |  |  |  |  |  |  |
Debt to capitalization ratio | 35.00% |  |  |  |  |  |  |  | 35.00% |  |
Our share of net income | $ 1,699 | $ (448) | $ 1,466 | $ 1,452 | $ 4,048 | $ 211 | $ 1,067 | $ 2,571 | $ 4,169 | $ 7,897 | $ 12,040
Corporate Joint Venture [Member] | Homebuilding [Member] |  |  |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | 29,611 |  |  |  | 22,620 |  |  |  | 29,611 | 22,620 |
Inventories | 326,581 |  |  |  | 224,814 |  |  |  | 326,581 | 224,814 |
Other assets | 11,225 |  |  |  | 11,986 |  |  |  | 11,225 | 11,986 |
Total assets | 367,417 |  |  |  | 259,420 |  |  |  | 367,417 | 259,420 |
Liabilities and equity: |  |  |  |  |  |  |  |  |  |  |
Accounts payable and accrued liabilities | 30,663 |  |  |  | 28,214 |  |  |  | 30,663 | 28,214 |
Notes payable | 116,328 |  |  |  | 51,156 |  |  |  | 116,328 | 51,156 |
Total liabilities | 146,991 |  |  |  | 79,370 |  |  |  | 146,991 | 79,370 |
Equity of: |  |  |  |  |  |  |  |  |  |  |
Hovnanian Enterprises, Inc. | 60,458 |  |  |  | 62,096 |  |  |  | 60,458 | 62,096 |
Others | 159,968 |  |  |  | 117,954 |  |  |  | 159,968 | 117,954 |
Total equity | 220,426 |  |  |  | 180,050 |  |  |  | 220,426 | 180,050 |
Total liabilities and equity | $ 367,417 |  |  |  | $ 259,420 |  |  |  | $ 367,417 | $ 259,420 |
Debt to capitalization ratio | 35.00% |  |  |  | 22.00% |  |  |  | 35.00% | 22.00% |
Revenues |  |  |  |  |  |  |  |  | $ 128,974 | $ 181,014 | 322,652
Cost of sales and expenses |  |  |  |  |  |  |  |  | (132,170) | (165,546) | (286,191)
Joint venture net income |  |  |  |  |  |  |  |  | (3,196) | 15,468 | 36,461
Our share of net income |  |  |  |  |  |  |  |  | 4,219 | 7,997 | 12,212
Homebuilding Venture [Member] | Corporate Joint Venture [Member] | Homebuilding [Member] |  |  |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ 27,856 |  |  |  | $ 22,415 |  |  |  | 27,856 | 22,415 |
Inventories | 314,814 |  |  |  | 208,620 |  |  |  | 314,814 | 208,620 |
Other assets | 11,225 |  |  |  | 11,986 |  |  |  | 11,225 | 11,986 |
Total assets | 353,895 |  |  |  | 243,021 |  |  |  | 353,895 | 243,021 |
Liabilities and equity: |  |  |  |  |  |  |  |  |  |  |
Accounts payable and accrued liabilities | 29,994 |  |  |  | 27,175 |  |  |  | 29,994 | 27,175 |
Notes payable | 112,554 |  |  |  | 45,506 |  |  |  | 112,554 | 45,506 |
Total liabilities | 142,548 |  |  |  | 72,681 |  |  |  | 142,548 | 72,681 |
Equity of: |  |  |  |  |  |  |  |  |  |  |
Hovnanian Enterprises, Inc. | 57,336 |  |  |  | 59,106 |  |  |  | 57,336 | 59,106 |
Others | 154,011 |  |  |  | 111,234 |  |  |  | 154,011 | 111,234 |
Total equity | 211,347 |  |  |  | 170,340 |  |  |  | 211,347 | 170,340 |
Total liabilities and equity | $ 353,895 |  |  |  | $ 243,021 |  |  |  | $ 353,895 | $ 243,021 |
Debt to capitalization ratio | 35.00% |  |  |  | 21.00% |  |  |  | 35.00% | 21.00% |
Revenues |  |  |  |  |  |  |  |  | $ 122,192 | $ 173,126 | 307,993
Cost of sales and expenses |  |  |  |  |  |  |  |  | (125,652) | (158,233) | (276,795)
Joint venture net income |  |  |  |  |  |  |  |  | (3,460) | 14,893 | 31,198
Our share of net income |  |  |  |  |  |  |  |  | 4,087 | 7,710 | 9,581
Land Development Venture [Member] | Corporate Joint Venture [Member] | Homebuilding [Member] |  |  |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ 1,755 |  |  |  | $ 205 |  |  |  | 1,755 | 205 |
Inventories | 11,767 |  |  |  | 16,194 |  |  |  | 11,767 | 16,194 |
Total assets | 13,522 |  |  |  | 16,399 |  |  |  | 13,522 | 16,399 |
Liabilities and equity: |  |  |  |  |  |  |  |  |  |  |
Accounts payable and accrued liabilities | 669 |  |  |  | 1,039 |  |  |  | 669 | 1,039 |
Notes payable | 3,774 |  |  |  | 5,650 |  |  |  | 3,774 | 5,650 |
Total liabilities | 4,443 |  |  |  | 6,689 |  |  |  | 4,443 | 6,689 |
Equity of: |  |  |  |  |  |  |  |  |  |  |
Hovnanian Enterprises, Inc. | 3,122 |  |  |  | 2,990 |  |  |  | 3,122 | 2,990 |
Others | 5,957 |  |  |  | 6,720 |  |  |  | 5,957 | 6,720 |
Total equity | 9,079 |  |  |  | 9,710 |  |  |  | 9,079 | 9,710 |
Total liabilities and equity | $ 13,522 |  |  |  | $ 16,399 |  |  |  | $ 13,522 | $ 16,399 |
Debt to capitalization ratio | 29.00% |  |  |  | 37.00% |  |  |  | 29.00% | 37.00% |
Revenues |  |  |  |  |  |  |  |  | $ 6,782 | $ 7,888 | 14,659
Cost of sales and expenses |  |  |  |  |  |  |  |  | (6,518) | (7,313) | (9,396)
Joint venture net income |  |  |  |  |  |  |  |  | 264 | 575 | 5,263
Our share of net income |  |  |  |  |  |  |  |  | $ 132 | $ 287 | $ 2,631

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