Restatement of Previously Issued Financial Statements Impact of Restatement on Statement of Operations (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2015	Apr. 30, 2014	Apr. 30, 2015	Apr. 30, 2014
Revenue, Net	$ 280,175	$ 208,972	$ 537,084	$ 392,511
Cost of Goods Sold	252,220	187,971	490,452	353,663
Gross Profit	27,955	21,001	46,632	38,848
Selling, General and Administrative Expense	16,869	10,663	30,484	21,063
Operating Income (Loss)	10,409	12,699	14,839	20,721
Other Nonoperating Income (Expense)	(669)	25	(1,064)	44
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	9,018	11,749	12,088	18,869
Income Tax Expense (Benefit)	2,665	3,620	3,292	5,801
Net Income (Loss) Attributable to Parent	$ 6,353	$ 8,129	$ 8,796	$ 13,068
Earnings Per Share, Basic	$ 0.37	$ 0.48	$ 0.51	$ 0.77
Earnings Per Share, Diluted	$ 0.37	$ 0.47	$ 0.51	$ 0.76
Restatement Adjustment [Member]
Revenue, Net	$ (203)		$ (371)
Cost of Goods Sold	1,093		2,796
Gross Profit	(1,296)		(3,167)
Selling, General and Administrative Expense			(9)
Operating Income (Loss)	(1,296)		(3,158)
Other Nonoperating Income (Expense)	35		57
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	(1,261)		(3,101)
Income Tax Expense (Benefit)	(419)		(1,029)
Net Income (Loss) Attributable to Parent	$ (842)		$ (2,072)
Earnings Per Share, Basic	$ (0.05)
Earnings Per Share, Diluted	$ (0.05)		$ (0.12)
Scenario, Previously Reported [Member]
Revenue, Net	$ 280,378		$ 537,455
Cost of Goods Sold	251,127		487,656
Gross Profit	29,251		49,799
Selling, General and Administrative Expense			30,493
Operating Income (Loss)	11,705		17,997
Other Nonoperating Income (Expense)	634		1,007
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	10,279		15,189
Income Tax Expense (Benefit)	3,084		4,321
Net Income (Loss) Attributable to Parent	$ 7,195		$ 10,868
Earnings Per Share, Basic	$ 0.42
Earnings Per Share, Diluted	$ 0.42		$ 0.63