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Inventories | 9 Months Ended
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Apr. 30, 2021
Inventory Disclosure [Abstract] |
Inventories | Inventories Major classifications of inventories are as follows:
| April 30, 2021 |  | July 31, 2020
Finished goods – RV | $ | 129,030 |  |  | $ | 152,297 |
Finished goods – other | 59,369 |  |  | 44,779 |
Work in process | 370,402 |  |  | 128,181 |
Raw materials | 534,965 |  |  | 302,813 |
Chassis | 445,697 |  |  | 135,194 |
Subtotal | 1,539,463 |  |  | 763,264 |
Excess of FIFO costs over LIFO costs | (55,409) |  |  | (46,959) |
Total inventories, net | $ | 1,484,054 |  |  | $ | 716,305 |
Of the $1,539,463 and $763,264 of inventories at April 30, 2021 and July 31, 2020, $527,670 and $251,099, respectively, were valued on the last-in, first-out (LIFO) method, and $1,011,793 and $512,165, respectively, were valued on the first-in, first-out (FIFO) method.

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998 + Details
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