KMG Chemicals 10-K 28 Oct 14 2014 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Jul. 31, 2014	Oct. 24, 2014	Jan. 31, 2014
Document Information [Line Items]	'	'	'
Document Type	'10-K	'	'
Amendment Flag	'false	'	'
Document Period End Date	31-Jul-14	'	'
Document Fiscal Year Focus	'2014	'	'
Document Fiscal Period Focus	'FY	'	'
Trading Symbol	'KMG	'	'
Entity Registrant Name	'KMG CHEMICALS INC	'	'
Entity Central Index Key	'0001028215	'	'
Current Fiscal Year End Date	'--07-31	'	'
Entity Well-known Seasoned Issuer	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Entity Filer Category	'Accelerated Filer	'	'
Entity Common Stock, Shares Outstanding	'	11,659,001	'
Entity Public Float	'	'	$135.30

CONSOLIDATED_BALANCE_SHEETS

CONSOLIDATED BALANCE SHEETS (USD $)	Jul. 31, 2014	Jul. 31, 2013
In Thousands, unless otherwise specified
Current assets	'	'
Cash and cash equivalents	$19,252	$13,949
Accounts receivable	'	'
Trade, net of allowances of $272 at July 31, 2014 and $224 at July 31, 2013	40,176	41,935
Other	1,904	4,210
Inventories, net	45,268	53,387
Current deferred tax assets	1,577	1,400
Prepaid expenses and other	3,476	3,955
Total current assets	111,653	118,836
Property, plant and equipment, net	92,450	96,688
Deferred tax assets	442	1,069
Goodwill	12,595	10,929
Intangible assets, net	28,353	29,261
Restricted cash	1,000	1,000
Other assets, net	4,365	4,232
Total assets	250,858	262,015
Current liabilities	'	'
Accounts payable	36,690	35,492
Accrued liabilities	16,986	8,362
Employee incentive accrual	4,575	1,989
Total current liabilities	58,251	45,843
Long-term debt	60,000	85,000
Deferred tax liabilities	9,881	11,462
Other long-term liabilities	2,520	2,470
Total liabilities	130,652	144,775
Commitments and contingencies	'	'
Stockholders' equity	'	'
Preferred stock, $.01 par value, 10,000,000 shares authorized, none issued	'	'
Common stock, $.01 par value, 40,000,000 shares authorized, 11,649,001 shares issued and outstanding at July 31, 2014 and 11,522,321 shares issued and outstanding at July 31, 2013	116	115
Additional paid-in capital	28,886	26,689
Accumulated other comprehensive income/(loss)	645	-2,504
Retained earnings	90,559	92,940
Total stockholders' equity	120,206	117,240
Total liabilities and stockholders' equity	$250,858	$262,015

CONSOLIDATED_BALANCE_SHEETS_Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Jul. 31, 2014	Jul. 31, 2013
In Thousands, except Share data, unless otherwise specified
Allowances for accounts receivables	$272	$224
Preferred stock, par value	$0.01	$0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	'	'
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	40,000,000	40,000,000
Common stock, shares issued	11,649,001	11,522,321
Common stock, shares outstanding	11,649,001	11,522,321

CONSOLIDATED_STATEMENTS_OF_INC

CONSOLIDATED STATEMENTS OF INCOME (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
Net sales	$353,406	$263,311	$272,700
Cost of sales	249,907	186,841	195,635
Gross profit	103,499	76,470	77,065
Distribution expenses	50,251	30,312	26,770
Selling, general and administrative expenses	38,421	28,978	24,858
Restructuring charges	6,359	'	'
Realignment charges	4,517	'	'
Operating income	3,951	17,180	25,437
Other income/(expense)	'	'	'
Interest expense, net	-2,854	-1,771	-2,099
Other, net	-831	-208	-269
Total other expense, net	-3,685	-1,979	-2,368
Income from continuing operations before income taxes	266	15,201	23,069
Provision for income taxes	-1,254	-5,715	-8,754
Income/(loss) from continuing operations	-988	9,486	14,315
Discontinued operations	'	'	'
Income/(loss) from discontinued operations, before income taxes	'	-203	-711
Income tax expense (benefit) allocated to discontinued operations	'	65	221
Loss from discontinued operations	'	-138	-490
Net income/(loss)	($988)	$9,348	$13,825
Basic	'	'	'
Income/(loss) from continuing operations	($0.09)	$0.82	$1.26
Loss from discontinued operations	'	($0.01)	($0.04)
Net income/(loss)	($0.09)	$0.81	$1.22
Diluted	'	'	'
Income/(loss) from continuing operations	($0.09)	$0.82	$1.24
Loss from discontinued operations	'	($0.01)	($0.04)
Net income/(loss)	($0.09)	$0.81	$1.20
Weighted average shares outstanding	'	'	'
Basic	11,615	11,487	11,363
Diluted	11,615	11,578	11,528

CONSOLIDATED_STATEMENTS_OF_COM

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
Net income/(loss)	($988)	$9,348	$13,825
Other comprehensive income/(loss)	'	'	'
Foreign currency translation gain/(loss)	3,149	1,835	-3,106
Total other comprehensive income/(loss)	3,149	1,835	-3,106
Total comprehensive income	$2,161	$11,183	$10,719

CONSOLIDATED_STATEMENTS_OF_STO

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $)	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings
In Thousands
Beginning Balance at Jul. 31, 2011	$96,530	$113	$25,256	($1,233)	$72,394
Beginning Balance (in shares) at Jul. 31, 2011	'	11,319	'	'	'
Cash dividends	-1,249	'	'	'	-1,249
Stock options/warrants exercised, value	55	'	55	'	'
Stock options/warrants exercised, shares	'	37	'	'	'
Restricted stock issued, value	'	1	-1	'	'
Restricted stock issued, shares	'	50	'	'	'
Stock-based compensation expense	714	'	714	'	'
Tax benefit from stock-based awards	41	'	41	'	'
Other	-43	'	-43	'	'
Net income/(loss)	13,825	'	'	'	13,825
Gain (Loss) on foreign currency translation	-3,106	'	'	-3,106	'
Ending Balance at Jul. 31, 2012	106,767	114	26,022	-4,339	84,970
Ending Balance (in shares) at Jul. 31, 2012	'	11,406	'	'	'
Cash dividends	-1,378	'	'	'	-1,378
Stock options/warrants exercised, value	70	'	70	'	'
Stock options/warrants exercised, shares	'	70	'	'	'
Restricted stock issued, value	'	1	-1	'	'
Restricted stock issued, shares	'	46	'	'	'
Stock-based compensation expense	446	'	446	'	'
Tax benefit from stock-based awards	529	'	529	'	'
Other	-377	'	-377	'	'
Net income/(loss)	9,348	'	'	'	9,348
Gain (Loss) on foreign currency translation	1,835	'	'	1,835	'
Ending Balance at Jul. 31, 2013	117,240	115	26,689	-2,504	92,940
Ending Balance (in shares) at Jul. 31, 2013	'	11,522	'	'	'
Cash dividends	-1,393	'	'	'	-1,393
Stock options/warrants exercised, shares	'	47	'	'	'
Restricted stock issued, value	'	1	-1	'	'
Restricted stock issued, shares	'	80	'	'	'
Stock-based compensation expense	2,231	'	2,231	'	'
Tax benefit from stock-based awards	328	'	328	'	'
Other	-361	'	-361	'	'
Net income/(loss)	-988	'	'	'	-988
Gain (Loss) on foreign currency translation	3,149	'	'	3,149	'
Ending Balance at Jul. 31, 2014	$120,206	$116	$28,886	$645	$90,559
Ending Balance (in shares) at Jul. 31, 2014	'	11,649	'	'	'

CONSOLIDATED_STATEMENTS_OF_STO1

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) (USD $)	12 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
Cash dividend per share	$0.12	$0.12	$0.11

CONSOLIDATED_STATEMENTS_OF_CAS

CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
Cash flows from operating activities	'	'	'
Net income /(loss)	($988)	$9,348	$13,825
Adjustments to reconcile net income/(loss) to net cash provided by operating activities	'	'	'
Depreciation and amortization	14,117	8,295	7,018
Depreciation related to restructuring and realignment	4,210	'	'
Non-cash Impairment charges	2,741	'	'
Amortization of loan costs included in interest expense	60	41	124
Stock-based compensation expense	2,231	446	714
Bad debt expense	128	208	'
Allowance for excess and obsolete inventory	634	-355	371
(Gain) loss on sale of animal health business	'	57	-90
(Gain) loss on disposal of property	-28	59	99
Deferred income tax expense/(benefit)	-2,227	1,247	929
Tax benefit from stock-based awards	-328	-529	-41
Changes in operating assets and liabilities, net of effects of acquisition	'	'	'
Accounts receivable - trade	2,137	1,813	6,810
Accounts receivable - other	746	-2,593	2,186
Inventories	7,861	-1,018	-5,545
Other current and non-current assets	822	-654	-223
Accounts payable	398	5,301	-2,801
Accrued liabilities and other	7,844	-1,394	1,873
Net cash provided by operating activities	40,358	20,272	25,249
Cash flows from investing activities	'	'	'
Additions to property, plant and equipment	-9,497	-5,505	-5,193
Disposals to property, plant and equipment	74	'	'
Acquisition of Ultra Pure Chemicals, net of cash acquired	149	-62,608	'
Proceeds from sale of animal health business	'	'	10,203
Proceeds from sale of property	'	'	33
Change in restricted cash	'	'	-1,000
Net cash provided by/(used in) investing activities	-9,274	-68,113	4,043
Cash flows from financing activities	'	'	'
Net borrowings/(payments) under revolving loan facility	-25,000	61,000	-13,946
Deferred financing costs	'	-229	'
Principal payments on borrowings on term loan	'	'	-11,333
Book overdraft	'	'	-2,852
Proceeds from exercise of stock options and warrants	'	70	64
Tax benefit from stock-based awards	328	529	41
Payment of dividends	-1,393	-1,378	-1,249
Net cash provided by/(used in) financing activities	-26,065	59,992	-29,275
Effect of exchange rate changes on cash	284	165	-210
Net increase (decrease) in cash and cash equivalents	5,303	12,316	-193
Cash and cash equivalents at the beginning of year	13,949	1,633	1,826
Cash and cash equivalents at end of year	19,252	13,949	1,633
Supplemental disclosures of cash flow information	'	'	'
Cash paid for interest	2,562	1,709	1,896
Cash paid for income taxes	865	5,854	5,009
Supplemental disclosure of non-cash investing activities	'	'	'
Purchase of property, plant and equipment through accounts payable	$1,135	$649	'

SUMMARY_OF_SIGNIFICANT_ACCOUNT

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
	Jul. 31, 2014
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	'
	1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
	General — KMG Chemicals, Inc. (the “Company”) is involved principally in the manufacture, formulation and distribution of specialty chemicals in carefully focused markets through its two wholly-owned subsidiaries, KMG Electronic Chemicals, Inc. (“KMG EC”) and KMG-Bernuth, Inc. (“KMG Bernuth”).
	In its electronic chemicals business, the Company sells high purity wet process chemicals to the semiconductor industry, and in the wood treating chemicals business the Company sells two industrial wood treating chemicals, pentachlorophenol (“penta”) and creosote. The Company operates its electronic chemicals business through KMG EC in North America and through KMG Italia, S.r.l. (“KMG Italia”) and KMG Electronic Chemicals Holdings S.a.r.l (“KMG Lux”) (and its subsidiaries) in Europe and Asia. That business has facilities in the United States, the United Kingdom, France, Italy and Singapore. In the wood treating business the Company manufactures penta at its plant in Matamoros, Mexico through KMG de Mexico (“KMEX”), a Mexican corporation which is a wholly-owned subsidiary of KMG Bernuth. The Company sells its wood treating chemicals in the United States, Mexico and Canada. The electronic chemicals and wood treating businesses constitute two reportable segments. See Note 13.
	Principles of Consolidation — The consolidated financial statements include the accounts of KMG Chemicals, Inc. and its subsidiaries. All significant intercompany accounts and transactions have been eliminated in consolidation.
	Use of Estimates — The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates.
	Reclassifications — Certain reclassifications of prior year amounts have been made to conform to current year presentation.
	Cash and Cash Equivalents — The Company considers all investments with original maturities of three months or less when purchased to be cash equivalents.
	Restricted Cash — Restricted cash includes cash balances which are legally or contractually restricted to use. The Company’s restricted cash as of July 31, 2014 and 2013 includes proceeds that were placed in escrow in connection with the sale of the animal health business. See Note 12.
	Fair Value of Financial Instruments — The carrying value of financial instruments, including cash and cash equivalents, accounts receivable, and accounts payable approximate fair value because of the relatively short maturity of these instruments. The fair value of the Company’s debt at July 31, 2014 and 2013 approximated its carrying value since the debt obligations bear interest at a rate consistent with market rates.
	Accounts Receivable — The Company’s trade accounts receivables are primarily from wood-treating customers and from electronic chemical customers worldwide. The Company extends credit based on an evaluation of the customer’s financial condition, generally without requiring collateral. Exposure to losses on receivables is dependent on each customer’s financial condition. At July 31, 2014 there was one customer that represented approximately 15% of the Company’s accounts receivable. At July 31, 2013 there were two customers that represented approximately 12% and 14%, respectively, of the Company’s accounts receivable.
	The Company records an allowance for doubtful accounts to reduce accounts receivable when the Company believes an account may not be collected. A provision for bad debt expense is recorded to selling, general and administrative expenses. The amount of bad debt expense recorded each period and the resulting adequacy of the allowance at the end of each period are determined using a customer-by-customer analyses of accounts receivable balances each period and our assessment of future bad debt exposure. Historically, write offs of accounts receivable balances have been insignificant. The allowance was $272,000 and $224,000 at July 31, 2014 and 2013, respectively.
	Inventories — Inventories are valued at the lower of cost or market. For certain products, cost is generally determined using the first-in, first-out (“FIFO”) method. For certain other products the Company utilizes a weighted-average cost. The Company records inventory obsolescence as a reduction in its inventory when considered not salable.
	Property, Plant, and Equipment — Property, plant, and equipment are stated at cost less accumulated depreciation and amortization. Major renewals and betterments are capitalized. Repairs and maintenance costs are expensed as incurred.
	Depreciation for equipment commences once placed in service, and depreciation for buildings and leasehold improvements commences once they are ready for their intended use. Depreciable life is determined through economic analysis. Depreciation for financial statement purposes is provided on the straight-line method.
	The estimated useful lives of classes of assets are as follows:
	Asset Class	Life (Years)
	Building		15 to 30
	Plant		10 to 18
	Equipment		3 to 15
	Leasehold improvements		Remaining life of the lease
	Depreciation expense was approximately $16.5 million (including accelerated depreciation of $4.2 million), $7.7 million and $6.5 million in fiscal years 2014, 2013 and 2012, respectively. See Notes 4 and 15.
	Intangible Assets — Identifiable intangible assets with a defined life are amortized using a straight-line or accelerated method over the useful lives of the assets. Identifiable intangible assets of an indefinite life are not amortized. These assets are required to be tested for impairment at least annually. If this review indicates that impairment has occurred, the carrying value of the intangible assets will be adjusted to fair value. Based on an assessment of qualitative factors, in accordance with GAAP, it was determined that there were no events or circumstances that would lead the Company to a determination that is more likely than not that the fair value of the applicable assets was less than its carrying value as of July 31, 2014 and 2013. The Company therefore concluded that its indefinite lived intangible assets were not impaired as of July 31, 2014 and 2013. It is the Company’s policy to expense costs as incurred in connection with the renewal or extension of its intangible assets.
	Goodwill — The Company has goodwill of $3.8 million and $8.8 million, respectively, associated with its wood treating and electronic chemicals segments. The carrying value of the Company’s goodwill is reviewed at least annually, and if this review indicates that it will not be recoverable the Company’s carrying value of goodwill will be adjusted to fair value. Based on an assessment of qualitative factors it was determined that there were no events or circumstances that would lead the Company to a determination that is more likely than not that the fair value of the applicable reporting unit was less than its carrying value as of July 31, 2014 and 2013. Accordingly, the Company determined that as of July 31, 2014 and 2013, goodwill was not impaired.
	Asset retirement obligation — The Company measures asset retirement obligations based upon the applicable accounting guidance, using certain assumptions including estimates for decommissioning, dismantling and disposal costs. In the event that operational or regulatory issues vary from its estimates, the Company could incur additional significant charges to income and increases in cash expenditures related to those costs. Certain conditional asset retirement obligations related to facilities have not been recorded in the consolidated financial statements due to uncertainties surrounding the ultimate settlement date and estimate of fair value related to a legal obligation to perform an asset retirement activity. When a reasonable estimate of the ultimate settlement can be made, an asset retirement obligation is recorded and such amounts may be material to the consolidated financial statements in the period in which they are recorded. In conjunction with its decision to exit the Bay Point facility, in fiscal year 2014 the Company recognized $3.7 million in asset retirement obligations related to the decommissioning, decontamination, and dismantling costs for which it is obligated under its manufacturing agreement. See Note 15.
	Impairment of Long-Lived Assets — Long-lived assets, including property, plant and equipment, and intangible assets with defined lives, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. The determination of recoverability is based on an estimate of undiscounted future cash flows resulting from the use of the asset and its disposition. The measurement of an impairment loss for long-lived assets, where management expects to hold and use the asset, are based on the asset’s estimated fair value. Long-lived assets to be disposed of are reported at the lower of carrying amount or fair value. The Company recognized an impairment loss in fiscal year 2014 of $2.7 million on certain long-lived assets at the Bay Point, California facility where Chemtrade toll manufactures for the Company.
	Revenue Recognition — The Company’s chemical products are sold in the open market and revenue is recognized when risk of loss and title to the products transfers to customers. In general, risk of loss transfers upon shipment to customers. The Company also recognizes service revenue in connection with technical support services and chemicals delivery and handling at customer facilities. Revenue is recognized as those services are provided.
	Cost of Sales — Cost of sales includes inbound freight charges, purchasing and receiving costs, depreciation, inspection costs and internal transfer costs. In the case of products manufactured by the Company, direct and indirect manufacturing costs and associated plant administrative expenses are included as well as laid-in cost of raw materials consumed in the manufacturing process.
	Distribution Expenses — These expenses include outbound freight, depreciation, storage and handling expenses and other miscellaneous costs (including depreciation and amortization) associated with product storage, handling and distribution.
	Selling, General and Administrative Expenses — These expenses include selling expenses, corporate headquarters’ expenses, amortization of intangible assets and environmental regulatory support expenses.
	Shipping and Handling Costs — Shipping and handling costs are included in cost of sales and distribution expenses. Inbound freight charges and internal transfer costs are included in cost of sales. Product storage and handling costs and the cost of distributing products to the Company’s customers are included in distribution expenses.
	Income Taxes — The Company files a consolidated United States federal income tax return, and for financial reporting purposes, provides income taxes for the differences between the financial statement carrying amounts of assets and liabilities and their tax bases in accordance with GAAP. See Note 5.
	Earnings Per Share — Basic earnings per common share amounts are calculated using the average number of common shares outstanding during each period. Diluted earnings per share assumes the issuance of restricted stock awards and the exercise of stock options having exercise prices less than the average market price during the applicable period, using the treasury stock method.
	Foreign Currency Translation — The functional currency of the Company’s Mexico operations is the U.S. Dollar. As a result, monetary assets and liabilities for KMEX are re-measured to U.S. dollars at current rates at the balance sheet dates, income statement items are re-measured at the average monthly exchange rates for the dates those items were recognized, and certain assets (including plant and production equipment) are re-measured at historical exchange rates. Foreign currency transaction gains and losses are included in the statement of operations as incurred along with gains and losses from currency re-measurement. These gains and losses were nominal in fiscal years 2014, 2013 and 2012.
	The Company’s international operations in the electronic chemicals business are in Europe and Singapore, and use local currencies as the functional currency, including the GB Pound, Euro and Singapore Dollar. The translation adjustment resulting from currency translation of the local currency into the reporting currency (U.S. Dollar) is included as a separate component of stockholders’ equity. The assets and liabilities have been translated from local currencies into U.S. Dollars using exchange rates in effect at the balance sheet dates. Results of operations have been translated using the average exchange rates during the period. Foreign currency translation resulted in a translation adjustment gains of $3.1 million and $1.8 million in fiscal years 2014 and 2013, respectively, and a loss of $3.1 million in fiscal year 2012, each of which are included in accumulated other comprehensive income/(loss) in the consolidated balance sheets.
	Stock-Based Compensation — The Company’s stock-based compensation expense is based on the fair value of the award measured on the date of grant. For stock option awards, the grant date fair value is measured using a Black-Scholes option valuation model. For stock awards, the Company’s stock price on the date of the grant is used to measure the grant date fair value. For awards of stock which are based on a fixed monetary value the grant date fair value is based on the monetary value. Stock-based compensation costs are recognized as an expense over the requisite service period of the award using the straight-line method.
	Recent Accounting Standards
	The Company has considered all recently issued accounting standards updates and SEC rules and interpretive releases.
	In April 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (“ASU”) No. 2014-08, “Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity.” This ASU changes the requirements for reporting discontinued operations. Under the ASU, discontinued operations are defined as either a component of an entity or group of components that has been disposed meets the criteria to be classified as held-for sale, or has been abandoned/spun-off, and represents a strategic shift that has (or will have a major effect on an entity’s operations and financial results,) or a business or nonprofit activity that, on acquisition, meets the criteria to be classified as held-for sale. This ASU is effective for interim periods beginning after December 15, 2014, is applied prospectively and early adoption is permitted. This ASU does not have an impact on our year-to-date period ending July 31, 2014. The impact on the Company will be dependent on any transaction that is within the scope of the new guidance.
	In May 2014, the FASB issued Accounting Standards Update (“ASU”) No. 2014-09, “Revenue from Contracts with Customers,” which provides guidance for revenue recognition. The standard’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. The new guidance is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. Early application is not permitted. The Company is currently assessing the potential impact of ASU No. 2014-09 on its financial statements.

ACQUISITIONS

ACQUISITIONS	12 Months Ended
	Jul. 31, 2014
ACQUISITIONS	'
	2. ACQUISITIONS
	On May 31, 2013, the Company completed its acquisition of the ultra pure chemicals (“UPC”) business subsidiaries of OM Group, Inc. (“OM Group”) located in the United States, Europe and Singapore. The subsidiaries sell high purity and ultra pure, wet process chemicals to the semiconductor industry. The Company completed the acquisition by borrowing $65.0 million on the revolving loan under its revolving credit facility on May 31, 2013. See Note 7 for further discussion of the Company’s revolving credit facility. During 2014, the Company entered into a settlement agreement with OM Group to finalize working capital adjustments related to the purchase price. The final purchase price of the UPC acquisition totaled $63.2 million. The Company received a net payment of $149,000 as part of the settlement of working capital adjustments.
	The Company accounted for the acquisition under the acquisition method of accounting in accordance with GAAP. The Company expensed transaction and acquisition-related costs of approximately $2.1 million in fiscal year 2013, which is included in selling, general and administrative expenses on the Company’s consolidated statement of income.
	The following table summarizes final acquired assets and assumed liabilities and the acquisition accounting for the fair value of the assets and liabilities recognized in the consolidated balance sheets at the acquisition date (in thousands):
	Cash	$	689
	Accounts receivable		14,698
	Inventory		11,047
	Other current assets		1,963
	Property, plant and equipment		28,939
	Intangible assets:
	Value of product qualifications		12,800
	Non-compete agreement		1,900
	Transition services		154
	Total intangible assets		14,854
	Total assets acquired	$	72,190
	Current liabilities		11,401
	Other long-term liabilities		6,206
	Total liabilities assumed		17,607
	Net assets acquired	$	54,583
	The following table sets forth pro forma results for the fiscal years ended July 31, 2013 and 2012 had the acquisition occurred as of the beginning of fiscal year 2012. The unaudited pro forma financial information is not necessarily indicative of what our consolidated results of operations would have been had we completed the acquisition as of the dates indicated.
		(Unaudited) (in thousands,
		except per share data)
		2013		2012
	Revenues	$	340,427	$	366,882
	Operating income		15,955		26,083
	Net income		9,123		13,056
	Earnings per share — basic	$	0.79	$	1.15
	The Company recognized $16.0 million of net sales and net income of $979,000, and integration costs of $577,000 related to the acquired business, in its consolidated statements of income for the fiscal year ended July 31, 2013.
	The supplemental pro forma information includes incremental interest expense from the Company’s revised credit facility of $1.0 million and $1.6 million for the years ended July 31, 2013 and 2012, respectively, excludes $2.1 million of acquisition-related costs incurred in fiscal year 2013, and includes incremental depreciation and amortization expense of approximately $3.1 million and $3.3 million for the years ended July 31, 2013 and 2012, respectively.

Inventories

Inventories	12 Months Ended
	Jul. 31, 2014
Inventories	'
	3. INVENTORIES
	Inventories are summarized as follows at July 31, 2014 and 2013 (in thousands):
		2014			2013
	Raw materials and supplies	$	7,914		$	8,003
	Work in process		1,508			1,382
	Supplies		1,793			1,730
	Finished products		34,343			42,452
	Less reserve for inventory obsolescence		(290	)		(180	)
	Inventories, net	$	45,268		$	53,387

Property_Plant_and_Equipment

Property, Plant and Equipment	12 Months Ended
	Jul. 31, 2014
Property, Plant and Equipment	'
	4. PROPERTY, PLANT AND EQUIPMENT
	Property, plant, and equipment and related accumulated depreciation and amortization are summarized as follows at July 31, 2014 and 2013 (in thousands):
		2014			2013
	Land	$	15,763		$	15,620
	Buildings and improvements		42,664			41,273
	Equipment		77,557			66,807
	Leasehold improvements		143			143
			136,127			123,843
	Less accumulated depreciation and amortization		(52,972	)		(36,933	)
			83,155			86,910
	Construction-in-progress		9,295			9,778
	Property, plant and equipment, net	$	92,450		$	96,688

INCOME_TAXES

INCOME TAXES	12 Months Ended
	Jul. 31, 2014
INCOME TAXES	'
	5. INCOME TAXES
	The Company is subject to United States federal, state and foreign taxes on its operations. The geographical sources of income from continuing operations before income taxes for each of the three years ended July 31 are as follows (in thousands):
		2014			2013			2012
	United States	$	1,923		$	12,033		$	21,789
	Foreign		(1,657	)		3,168			1,280
	Income from continuing operations before income taxes	$	266		$	15,201		$	23,069
	The components of income tax expense/(benefit) from continuing operations for the years ended July 31 consisted of the following (in thousands):
		2014			2013			2012
	Current:
	Federal	$	2,582		$	2,833		$	5,639
	Foreign		1,071			1,437			686
	State		603			197			1,071
			4,256			4,467			7,396
	Deferred:
	Federal		(1,978	)		1,426			1,441
	Foreign		(897	)		(282	)		(104	)
	State		(127	)		104			21
			(3,002	)		1,248			1,358
	Total	$	1,254		$	5,715		$	8,754
	The Company allocated income tax benefit of $65,000, and $221,000 to discontinued operations for the fiscal years ended July 31, 2013 and 2012, respectively.
	Deferred income taxes are provided on all temporary differences between financial and taxable income. The following table presents the components of the Company’s deferred tax assets and liabilities at July 31, 2014 and 2013 (in thousands):
		2014			2013
	Deferred tax assets:
	Current deferred tax assets:
	Bad debt expense	$	326		$	259
	Inventory		787			920
	Accrued liabilities		1,545			166
	Employee benefits		1,879			606
	Other		102			159
	Less valuation allowance		(636	)		—
	Total current deferred tax assets	$	4,003		$	2,110
	Non-current deferred tax assets
	Net operating loss	$	839		$	803
	Deferred compensation		616			793
	Less valuation allowance		(1,090	)		—
	Total non-current deferred tax assets	$	365		$	1,596
	Deferred tax liabilities:
	Current deferred tax liabilities:
	Other	$	(128	)	$	(152	)
	Prepaid assets		(398	)		(562	)
	Total current deferred tax liabilities:	$	(526	)	$	(714	)
	Non-current deferred tax liabilities:
	Difference in amortization basis of intangibles	$	(7,129	)	$	(6,020	)
	Difference in depreciable basis of property		(4,575	)		(5,965	)
	Total non-current deferred tax liabilities		(11,704	)		(11,985	)
	Net non-current deferred tax liability	$	(7,862	)	$	(8,993	)
	As of July 31, 2014, the Company has $2.7 million foreign net operating losses carry forwards which start to expire in 2024.
	The Company records provisions for uncertain tax provisions in accordance with GAAP, which prescribes the minimum recognition threshold that a tax position is required to meet before being recognized in the financial statements. The Company recognizes interest and penalties related to uncertain tax positions in income tax expense. The statute of limitations remain open for fiscal year ended July 31, 2011 and forward for United States federal income taxes and fiscal year ended July 31, 2009 and forward for state tax jurisdictions. On August 28, 2014, the Company was notified by the Internal Revenue Service that the federal income tax return for the July 31, 2013 fiscal year-end had been selected for examination. The audit is ongoing at this time.
	The Company’s subsidiary in Italy is contesting income tax assessments for the three years period ended July 31, 2011 and a registration tax assessment for the December 2007 purchase of the electronic chemicals business in Italy. Adjustments were proposed by the taxing authorities that would result in approximately $3.5 million (including interest and penalties) of additional liability, if all the adjustments are sustained. However, the Company does not expect all of this amount to result in cash payments in the event of an unfavorable resolution, as the Company would be able to utilize available net operating losses. The Company intends to vigorously defend its tax position, and on October 13, 2014 the Provincial Tax Court in Milan, Italy agreed with the Company’s position. The ruling is subject to appeal by the taxing authority. The ultimate outcome of this examination is subject to uncertainty, and the Company had a liability for its uncertain tax position in Italy as of July 31, 2014 and 2013 of $326,000 and $437,000, respectively, which includes penalties and interest offset by net operations losses. These uncertain tax positions primarily relate to transfer pricing. See Note 8 to the consolidated financial statements.
	On January 2, 2013 the American Taxpayer Relief Act was adopted. The law included a retroactive two year extension of the research and development credit from January 1, 2012 through December 31, 2013. A retroactive income tax benefit of approximately $200,000 was recorded by the Company during the second quarter of fiscal year 2013. In July 2013, The Finance Bill 2013 included reductions in the United Kingdom corporation tax rate to 21%, effective April 2014.
	The Company has reviewed its Mexican operations and concluded that they do not have the same level of immediate capital needs as previously expected. Therefore, the Company no longer intends for previously unremitted foreign earnings associated with its Mexico operations to be permanently reinvested outside the United States.
	The following table accounts for the differences between the actual tax provision, and the amounts obtained by applying the applicable statutory United States federal income tax rate of 35% to income from continuing operations before income taxes for each of the years ended July 31, 2014, 2013, and 2012, respectively (in thousands):
		2014			2013			2012
	Income taxes at the federal statutory rate	$	93		$	5,320		$	8,074
	Effect of foreign operations		329			(65	)		160
	Change in valuation allowance		1,725			—			—
	Adjustments to foreign operations		(916	)		—			—
	State income taxes, net of federal income tax effect		269			232			717
	Acquisition related cost		—			714			—
	Other		(246	)		(486	)		(197	)
	Total	$	1,254		$	5,715		$	8,754

INTANGIBLE_ASSETS

INTANGIBLE ASSETS	12 Months Ended
	Jul. 31, 2014
INTANGIBLE ASSETS	'
	6. INTANGIBLE ASSETS
	Intangible assets are summarized as follows (in thousands):
		Number of Years
		Weighted				July 31, 2014
		Average		Original		Accumulated			Foreign		Carrying
		Amortization		Cost		Amortization			Currency		Amount
		Period							Translation
	Intangible assets subject to amortization
	(range of useful life):
	Electronic chemicals-related contracts (5-8 years)		6.6	$	2,204	$	(559	)	$	79	$	1,724
	Electronic chemicals-related trademarks and patents (10-15 years)		12		117		(67	)		—		50
	Electronic chemicals-value of product qualifications (5-15 years)		14.1		14,100		(2,426	)		801		12,475
	Total intangible assets subject to amortization		13.1	$	16,421	$	(3,052	)	$	880		14,249
	Intangible assets not subject to amortization:
	Creosote product registrations											5,339
	Penta product registrations											8,765
	Total intangible assets not subject to amortization											14,104
	Total intangible assets, net										$	28,353
		Number of Years
		Weighted		July 31, 2013
		Average
		Amortization		Original		Accumulated			Carrying
		Period		Cost		Amortization			Amount
	Intangible assets subject to amortization
	(range of useful life):
	Electronic chemicals-related contracts (5-8 years)		6.5	$	2,297	$	(253	)	$	2,044
	Electronic chemicals-related trademarks and patents (10-15 years)		12		117		(57	)		60
	Electronic chemicals-value of product qualifications (5-15 years)		14.1		14,100		(1,047	)		13,053
	Total intangible assets subject to amortization		13	$	16,514	$	(1,357	)		15,157
	Intangible assets not subject to amortization:
	Creosote product registrations									5,339
	Penta product registrations									8,765
	Total intangible assets not subject to amortization									14,104
	Total intangible assets, net								$	29,261
	Assets acquired in the acquisition of the UPC subsidiaries in May 2013 included $12.8 million of product qualifications and $1.9 million of non-compete agreements, which are being amortized over 15 and seven years, respectively. Intangible assets subject to amortization are amortized over their estimated useful lives which are between five and 15 years. Total amortization expense related to intangible assets was approximately $1.8 million, $573,000 and $548,000 for the fiscal years ended July 31, 2014, 2013 and 2012, respectively. The estimated amortization expense is projected to be approximately $1.6 million, $1.4 million, $1.3 million, $1.3 million and $1.2 million for fiscal years 2015 through 2019, respectively.
	The following table presents carrying value of goodwill by segment as of July 31, 2014, 2013 and 2012 (in thousands):
		Wood		Electronic		Total
		Treating		Chemicals
	Balance as of July 31, 2012	$	3,779	$	—	$	3,779
	Goodwill resulting from the UPC acquisition		—		7,150		7,150
	Balance as of July 31, 2013		3,779		7,150		10,929
	Working capital adjustment from the UPC acquisition		—		535		535
	Finalization of purchase price allocation		—		880		880
	Foreign currency translation adjustment		—		251		251
	Balance as of July 31, 2014	$	3,779	$	8,816	$	12,595

LONGTERM_OBLIGATIONS

LONG-TERM OBLIGATIONS	12 Months Ended
	Jul. 31, 2014
LONG-TERM OBLIGATIONS	'
	7. LONG-TERM OBLIGATIONS
	Working Capital
	The Company refinanced and amended the loan facility it had in place at July 31, 2014 with a new credit facility as reported on Form 8-K filed on October 10, 2014 (“New Credit Facility”), but at July 31, 2014 the Company had $40.0 million outstanding under the then existing revolving facility of $110.0 million. The maximum borrowing capacity under that revolving loan facility was $46.6 million, after giving effect to a reduction of $3.4 million for unused letters of credit. The actual amount available under the revolving facility at July 31, 2014 was limited, however, to approximately $35.0 million, because of a loan covenant restriction respecting funded debt to pro-forma earnings before interest, taxes and depreciation.
	Long Term Obligations
	The Company’s long-term debt and current maturities as of July 31, 2014 and July 31, 2013 consisted of the following (in thousands):
		July 31,			July 31,
		2014			2013
	Senior Secured Debt:
	Note Purchase Agreement, maturing on December 31, 2014, interest rate of 7.43%	$	20,000		$	20,000
	Revolving Loan Facility, maturing on April 30, 2018, variable interest rates based on LIBOR plus 2.0% and 1.50% at July 31, 2014 and 2013, respectively		40,000			65,000
	Total debt		60,000			85,000
	Current maturities of long-term debt		—			—
	Long-term debt, net of current maturities	$	60,000		$	85,000
	The Company entered into an amended and restated credit agreement and a note purchase agreement in December 2007, which were subsequently amended. Advances under the revolving loan, as amended, bore interest at 2.155% and 1.69% as of July 31, 2014 and 2013, respectively. The amount outstanding on the revolving loan facility was $40.0 million at July 31, 2014. The note purchase agreement was for $20.0 million. Advances under the note purchase agreement bore interest at 7.43% per annum.
	On October 9, 2014, the Company refinanced its existing revolving loan facility and entered into the New Credit Facility. The New Credit Facility is now with Wells Fargo Bank, National Association, Bank of America, N.A., HSBC Bank USA, National Association, and JPMorgan Chase Bank, N.A. The initial advance under the New Credit Facility was used to repay in full the $20.0 million outstanding indebtedness under the Company’s note purchase agreement with The Prudential Insurance Company of America and Pruco Life Insurance Company, and the Company refinanced $38.0 million then outstanding under its existing revolving loan facility. As a result, the note purchase agreement has been classified as a long-term obligation as of July 31, 2014.
	The New Credit Facility provides for a revolving loan up to $150.0 million, including an accordion feature that allows for an additional revolving loan increase of up to an additional $100.0 million with approval from the lenders. The amount available under the New Credit Facility at October 9, 2014 was limited, however, to approximately $44.2 million, because of a loan covenant restriction respecting funded debt to EBITDA. The maturity date for the New Credit Facility is October 9, 2019.
	The revolving loan under the New Credit Facility bears interest at varying rate of LIBOR plus a margin based on funded debt to earnings before interest, taxes, depreciation and amortization (“EBITDA”), as described in the table.
	Ratio of Funded Debt to EBITDA	Margin
	Equal to or greater than 3.0 to 1.0		1.875	%
	Equal to or greater than 2.75 to 1.0, but less than 3.0 to 1.0		1.625	%
	Equal to or greater than 2.50 to 1.0, but less than 2.75 to 1.0		1.5	%
	Equal to or greater than 2.25 to 1.0, but less than 2.50 to 1.0		1.375	%
	Equal to or greater than 2.00 to 1.0, but less than 2.25 to 1.0		1.25	%
	Equal to or greater than 1.50 to 1.0, but less than 2.00 to 1.0		1.125	%
	Less than 1.50 to 1.0		1	%
	The Company will also incur an unused commitment fee on the unused amount of commitments under the New Credit Facility from 0.30% to 0.15%, based on the ratio of funded debt to EBITDA.
	Loans under the New Credit Facility are secured by the Company’s assets, including stock in subsidiaries, inventory, accounts receivable, equipment, intangible assets, and real property. The New Credit Facility has restrictive covenants, including requirements that the Company must maintain a fixed charge coverage ratio of 1.5 to 1.0, a ratio of funded debt to EBITDA (as adjusted for non-cash and unusual, non-recurring, and certain acquisition and integration costs) of 3.25 to 1.0 (with a step-up to 3.5 to 1.0 during an acquisition period with lender consent) and a current ratio of at least 1.5 to 1.0.
	After considering the New Credit Facility, principal payments due under long-term debt agreements as of July 31, 2014 for the fiscal years ended July 31 are as follows (in thousands):
		Total			2015		2016		2017		2018		2019		Thereafter
	Long-term debt	$	60,000		$	—	$	—	$	—	$	—	$	—	$	60,000

Commitments_And_Contingencies

Commitments And Contingencies	12 Months Ended
	Jul. 31, 2014
Commitments And Contingencies	'
	8. COMMITMENTS AND CONTINGENCIES
	Contractual Obligations — The Company has non-cancelable operating leases for its office and warehouse facilities and certain transportation equipment and purchase obligations. Our obligations to make future payments under certain contractual obligations as of July 31, 2014 are summarized in the following table (in thousands):
			Total		2015		2016		2017		2018		2019		Thereafter
	Operating leases		$	17,512	$	5,333	$	4,396	$	2,442	$	1,388	$	1,027	$	2,926
	Purchase obligations (1)			129,146		56,087		43,102		27,870		2,087		—		—
	Total		$	146,658	$	61,420	$	47,498	$	30,312	$	3,475	$	1,027	$	2,926
	-1	Consists primarily of raw materials purchase contracts. These are typically not fixed price arrangements. The prices are based on the prevailing market prices.
	Rent expense relating to the operating leases was approximately $3.8 million, $2.7 million and $2.3 million in fiscal years 2014, 2013 and 2012, respectively.
	Environmental — The Company’s operations are subject to extensive federal, state and local laws, regulations and ordinances in the United States and abroad relating to the generation, storage, handling, emission, transportation and discharge of certain materials, substances and waste into the environment, and various other health and safety matters. Governmental authorities have the power to enforce compliance with their regulations, and violators may be subject to fines, injunctions or both. The Company must devote substantial financial resources to ensure compliance, and it believes that it is in substantial compliance with all of the applicable laws and regulations.
	Certain licenses, permits and product registrations are required for the Company’s products and operations in the United States, Mexico and other countries in which it does business. The licenses, permits and product registrations are subject to revocation, modification and renewal by governmental authorities. In the United States in particular, producers and distributors of chemicals such as penta and creosote are subject to registration and notification requirements under federal law (including under the Federal Insecticide Fungicide and Rodenticide Act (“FIFRA”), and comparable state law) in order to sell those products in the United States. Compliance with these requirements has had, and in the future will continue to have, a material effect on our business, financial condition and results of operations.
	The Company incurred expenses in connection with FIFRA research and testing programs of approximately $667,000, $522,000 and $802,000, in fiscal year 2014, 2013 and 2012, respectively. These costs are included in selling, general, and administrative expenses.
	Litigation and Other Contingencies — The Company is subject to contingencies, including litigation relating to environmental laws and regulations, commercial disputes and other matters. Certain of these contingencies are discussed below. The ultimate resolution of these contingencies is subject to significant uncertainty, and should the Company fail to prevail in any of them or should several of them be resolved against the Company in the same reporting period, these matters could, individually or in the aggregate, be material to the consolidated financial statements. The ultimate outcome of these matters, however, cannot be determined at this time, nor can the amount of any potential loss be reasonably estimated, and as a result except where indicated no amounts have been recorded in the Company’s consolidated financial statements.
	The Company records legal costs associated with loss contingencies as expenses in the period in which they are incurred.
	The Company’s subsidiary in Italy is contesting two cases in the Provincial Tax Court in Milan, Italy. In the first case the Company disputes income tax assessments by the taxing authority for the three year period ended July 31, 2011. In the aggregate, the amount of the assessments, including interest and penalties, is €1.8 million. If all the adjustments are sustained, the additional liability for the years 2009 through 2011 would total approximately $2.4 million, including interest and penalties through July 31, 2014 (at an exchange rate of 1.339 $/€). The Company had a liability for an uncertain tax position for items in the amount of $326,000 and $437,000 as of July 31, 2014 and 2013, respectively. In the second case, the Company’s subsidiary is contesting the assessment of additional registration tax. The taxing authority is asserting an increased valuation of assets purchased from Air Products and Chemicals, Inc. in December 2007 on which registration tax is payable. The amount of this assessment, including interest and penalties through July 31, 2014, is €788,000 (or approximately $1.1 million, at an exchange rate of 1.339 $/€). The Provincial Tax Court issued a ruling on October 13, 2014 agreeing with the Company’s position in the income tax assessment case. That ruling is subject to appeal by the taxing authority. The Company intends to vigorously pursue its position before the court in both cases, but the ultimate outcome of this litigation is subject to uncertainty.
	The EPA has listed the Star Lake Canal Superfund Site in Port Neches and Groves, Texas on the National Priorities List. In December 2002, the Company received a letter from the EPA addressed to Idacon, Inc. (f/k/a Sonford Chemical Company) notifying Idacon of potential liability under CERCLA in connection with this site. The letter requested reimbursement from Idacon for costs incurred by the EPA in responding to releases at the sites, equal to approximately $500,000 as of July 31, 2002. Idacon sold substantially all of its assets to one of our subsidiaries in 1988. The Company responded to a request for information from the EPA on the corporate history and relationship between the Company and its subsidiaries and Sonford Chemical Company in April 2003. On December 22, 2005, the EPA and certain potentially responsible parties entered an administrative order on consent which required the implementation of a remedial investigation and feasibility study. We understand that these studies were completed by mid-2012. EPA prepared a Record of Decision, selecting a remedy of excavation and disposal or soil and/or sediment, containment with soil, clay and/or armor caps and monitored natural recovery. In October 2014, the Company’s subsidiary, KMG-Bernuth, received a letter from EPA notifying it of potential liability under CERCLA, and inviting it to enter into negotiations to pay for or perform the selected remedy. No assurance can be given that the EPA will not designate the Company’s subsidiary as a potentially responsible party.
	The Company is subject to federal, state, local and foreign laws and regulations and potential liabilities relating to the protection of the environment and human health and safety including, among other things, the cleanup of contaminated sites, the treatment, storage and disposal of wastes, the emission of substances into the air or waterways, and various health and safety matters. The Company expects to incur substantial costs for ongoing compliance with such laws and regulations. The Company may also face governmental or third-party claims, or otherwise incur costs, relating to cleanup of, or for injuries resulting from, contamination at sites associated with past and present operations. The Company accrues for environmental liabilities when a determination can be made that they are probable and reasonably estimable.

Employee_Benefit_Plans

Employee Benefit Plans	12 Months Ended
	Jul. 31, 2014
Employee Benefit Plans	'
	9. EMPLOYEE BENEFIT PLANS
	The Company has a defined contribution 401(k) plan in which all regular U.S. employees are eligible to participate. The Company makes matching contributions under this plan of up to 4% of a participant’s compensation up to the annual regulated maximum amounts. The first 3% of the employee contribution is matched at 100%. The next 2% of the employee contribution is matched at 50%. Company contributions to the plan totaled approximately $608,000, $457,000 and $420,000 in fiscal years 2014, 2013 and 2012, respectively.
	The locations in the United Kingdom and Singapore, acquired as part of the UPC acquisition from OM Group, make contributions to retirement plans that function as defined contribution retirement plans. The Company’s contributions to those plans were approximately $1.5 million in fiscal year 2014.
	As of July 31, 2014, the Company’s other long-term liabilities included approximately $1.1 million related to benefit obligations in connection with one of its foreign subsidiaries included in the acquisition of the UPC business. This payable is an unfunded benefit obligation of the Company.
	The Company has an employee benefit arrangement for one of its former U.S. employees. As of July 31, 2014 and 2013, the associated liability was approximately $553,000 and $617,000, respectively. The amount payable is a general obligation of the Company. Benefit payments under this arrangement, which were started in April 2013, will be paid for 10 years.

Earnings_Per_Share

Earnings Per Share	12 Months Ended
	Jul. 31, 2014
Earnings Per Share	'
	10. EARNINGS PER SHARE
	Basic earnings per share have been computed by dividing net income by the weighted average shares outstanding. Diluted earnings per share have been computed by dividing net income by the weighted average shares outstanding plus potentially dilutive common shares. The following table presents information necessary to calculate basic and diluted earnings per share for periods indicated:
		Year Ended
		2014			2013			2012
		(Amounts in thousands, except per share data)
	Income/(loss) from continuing operations	$	(988	)	$	9,486		$	14,315
	Income/(loss) from discontinued operations		—			(138	)		(490	)
	Net income class	$	(988	)	$	9,348		$	13,825
	Weighted average shares outstanding — basic		11,615			11,487			11,363
	Dilutive effect of options/warrants and stock awards		—			91			165
	Weighted average shares outstanding — diluted		11,615			11,578			11,528
	Basic earnings per share
	Basic earnings per share from continuing operations	$	(0.09	)	$	0.82		$	1.26
	Basic earnings per share on income/(loss) from discontinued operations		—			(0.01	)		(0.04	)
	Basic earnings per share	$	(0.09	)	$	0.81		$	1.22
	Diluted earnings per share
	Diluted earnings per share from continuing operations	$	(0.09	)	$	0.82		$	1.24
	Diluted earnings per share on income/(loss) from discontinued operations		—			(0.01	)		(0.04	)
	Diluted earnings per share	$	(0.09	)	$	0.81		$	1.2
	Outstanding stock-based awards are not included in the computation of diluted earnings per share under the treasury stock method, if including them would be anti-dilutive. There was an average of 21,033 shares, 6,222 shares and 4,972 shares for the fiscal years ended 2014, 2013 and 2012, respectively, not included in the computation of diluted earnings per share. Potentially dilutive shares are not included in the computation of diluted weighted average shares outstanding for the fiscal year ended July 31, 2014 due to a loss from continuing operations for the year.

STOCKBASED_COMPENSATION

STOCK-BASED COMPENSATION	12 Months Ended
	Jul. 31, 2014
STOCK-BASED COMPENSATION	'
	11. STOCK-BASED COMPENSATION
	Stock-Based Incentive Plans
	The Company adopted a 2009 Long-Term Incentive Plan (“2009 LTI Plan”) in October 2009, and it was approved by the shareholders at the annual meeting in December 2009. The Company adopted a 2004 Long-Term Incentive Plan (“2004 LTI Plan”) in October 2004, and it was approved by the shareholders at the annual meeting in November 2005 (the 2009 LTI Plan and the 2004 LTI Plan are referred to collectively as the “LTI Plans”). The Company adopted the 1996 Stock Option Plan (the “1996 Stock Plan”) in October, 1996, which expired and terminated on July 31, 2007. There are no options outstanding under the 1996 Stock Plan as of July 31, 2014.
	The LTI Plans permit the granting of incentive stock options, non-qualified stock options, stock appreciation rights, restricted stock, restricted stock units, performance awards, dividend equivalent rights, and other awards. They are administered by the Board of Directors or a committee appointed by the Board of Directors. The Board has designated the Compensation and Development Committee as the administrator of the LTI Plans. Subject to the terms of the LTI Plans, the committee has the sole discretion to select the persons eligible to receive awards, the type and amount of incentives to be awarded, and the terms and conditions of awards. The committee also has the authority to interpret the LTI Plans, and establish and amend regulations necessary or appropriate for their administration. Any employee of the Company or a subsidiary of the Company or a director of the Company whose judgment, initiative, and efforts contributed or may be expected to contribute to the successful performance of the Company is eligible to participate. The maximum number of shares of the Company’s common stock that may be delivered pursuant to awards granted is 750,000 shares under the 2009 Long-Term Incentive Plan and 375,000 shares under the 2004 Long-Term Incentive Plan. Under the 2009 Long-Term Plan, no executive officer may receive in any calendar year stock options or stock appreciation rights, or awards that are subject to the attainment of performance goals relating to more than 200,000 shares of common stock. Under the 2004 Long-Term Plan, no executive officer may receive in any calendar year stock options or stock appreciation rights relating to more than 250,000 shares of common stock, or awards that are subject to the attainment of performance goals relating to more than 100,000 shares of common stock. At July 31, 2014 there were approximately 338,273 shares and 36,174 shares available for future grants under the 2009 Long-Term Plan and 2004 Long-Term Plan, respectively.
	The 1996 Stock Plan terminated by expiration of its original term on July 31, 2007. There are no option outstanding under the plan as of July 31, 2014. The 1996 Stock Plan was administered either by the Company’s Board of Directors or by a committee of two or more non-employee directors. The Board designated the Compensation and Development Committee as the administrator of the plan. Options are exercisable during the period specified in each option agreement and in accordance with a vesting schedule designated by the Board of Directors or the committee. Any option agreement may provide that options become immediately exercisable in the event of a change or threatened change in control of the Company and in the event of certain mergers and reorganizations of the Company. Options may be subject to early termination within a designated period following the option holder’s cessation of service with the Company.
	Accounting for Stock-Based Compensation
	The Company recognized stock-based compensation costs of approximately $2,231,000, $446,000 and $714,000, respectively, for the fiscal years ended July 31, 2014, 2013 and 2012, and the related tax benefits of $825,000, $168,000 and $266,000, respectively, for the fiscal years ended July 31, 2014, 2013 and 2012. Stock-based compensation costs are recorded as selling, general and administrative expenses in the consolidated statements of income. The Company accounts for stock-based compensation costs at fair value measured on the date of grant of the award using a Black-Scholes option valuation model for stock option awards. Grant date fair value for stock awards is measured using the Company’s closing stock price on the date of grant of the stock awards where the award is based on a specific number of shares. Stock-based compensation costs are recognized as an expense over the requisite service period, generally the vesting period of the award, using the straight-line method.
	As of July 31, 2014, there was approximately $1,902,000 of unrecognized compensation costs that are related to outstanding stock awards expected to be recognized over a weighted-average period of 2.1 years.
	In connection with the election of Christopher T. Fraser as the Company’s President and Chief Executive Officer on September 24, 2013, the Company granted Mr. Fraser (i) 50,000 shares of common stock and (ii) time-based restricted stock awards for 30,000 shares of common stock (vesting over five years). The Company also agreed to grant performance-based restricted stock awards for an aggregate of 70,000 shares of common stock in five equal installments beginning in fiscal year 2013. The Company recorded an expense of approximately $1.1 million in the first quarter of fiscal year 2014 for the grant date fair value of the 50,000 shares of common stock.
	A summary of activity for stock option and stock-awards is presented below.
	Stock Options
	A summary of option activity associated with employee compensation for the fiscal year ended July 31, 2014 is presented below.
			Shares			Weighted-
						Average
						Exercise Price
	Outstanding on August 1, 2013			58,000		$	4.03
	Granted			—			—
	Exercised			(58,000	)		4.03
	Forfeited/Expired			—
	Outstanding on July 31, 2014			—		$	—
	No stock options were outstanding at July 31, 2014.
	No options were granted in fiscal years 2014, 2013 and 2012.
	The total intrinsic value of options exercised in fiscal years 2014, 2013 and 2012 was approximately $952,000, $1.6 million, and $629,000, respectively. The total fair value of shares vested was $0, $39,000 and $39,000 for the fiscal years ended 2014, 2013, and 2012, respectively.
	Performance Shares
	The Company grants performance based shares to certain executives and employees consisting of Series 1 and Series 2 awards. Stock-based compensation for the awards is recognized on a straight-line basis over the requisite service period beginning on the date of grant through the end of the measurement period based on the number of shares expected to vest at the end of the measurement period. The expected percent of vesting is determined using certain performance measures described below and is re-evaluated at the end of each reporting period through the end of the measurement period.
	At August 1, 2013 there were 154,758 non-vested performance shares outstanding. During fiscal year 2014 there were 192,344 Series 1 shares granted and there were 23,242 shares forfeited. These shares represented the maximum award subject to certain performance measures. There were 3,076 performance shares vested during fiscal year 2014. At July 31, 2014, there were 250,944 non-vested performance shares outstanding reflecting the maximum number of shares issuable under outstanding awards.
	The fair value of the fiscal year 2014 award was measured on the grant dates on February 25, 2014 using the Company’s closing stock price of $14.88. Stock-based compensation on the award is recognized on a straight-line basis over the requisite service period beginning on the date of grant through the end of the measurement period ending on July 31, 2016, based on the number of shares expected to vest at the end of the measurement period.
	A summary of the performance based stock awards granted to certain executives as Series 1 awards in fiscal years 2013 and 2014 and Series 1 and Series 2 awards in fiscal years 2012 and 2011 is detailed below.
	Date of Grant		Series			Maximum		Grant Date		Measurement		Actual or			Shares Projected
			Award			Award		Fair Value		Period Ending		Expected			to Vest or Vested (2)
						(Shares)						Percentage of
												Vesting (2)
	Fiscal Year 2014 Award
	2/25/2014 (1)			Series 1			192,344	$	14.88		7/31/16		53	%		102,737
	Fiscal Year 2013 Award
	12/4/2012 (1)			Series 1			58,600	$	18.75		7/31/15		0	%		—
							250,944
	Fiscal Year 2012 Award
	2/27/12			Series 1			300	$	18.08		7/31/14		10	%		30
	2/27/12			Series 2			200	$	18.08		7/31/14		0	%		—
							500									30
	10/28/11			Series 1			15,300	$	15.3		7/31/14		10	%		1,380
	10/28/11			Series 2			10,200	$	15.3		7/31/14		0	%		—
							25,500									1,380
	10/11/2011 (1)			Series 1			28,150	$	14.16		7/31/14		10	%		1,666
	10/11/2011 (1)			Series 2			18,766	$	14.16		7/31/14		0	%		—
							46,916									1,666
	Total						72,916									3,076
	-1	Series 1 and Series 2 awards to J. Neal Butler were forfeited upon his termination of employment on July 10, 2013 and the table reflects that forfeiture. Shares forfeited included 59,217 shares granted in fiscal year 2013, 30,837 Series 1 and 20,558 Series 2 awards granted in fiscal year 2012, and 24,201 Series 1 and 16,134 Series 2 awards granted in fiscal year 2011.
	-2	For performance shares granted before 2013, the above table represents the actual percentage vesting and shares vested as of the end of the measurement period ended July 31, 2014. For the other performance share grants identified in the above table, the information set forth is the expected vesting percentage and the shares projected to vest.
	Series 1: Vesting for the Series 1 awards is subject to a performance requirement composed of certain revenue growth objectives and average annual return on invested capital or equity objectives measured across a three-year period. For the fiscal year 2013 and 2012 awards, the expected percentage of vesting is based on performance through July 31, 2013 and reflects the percentage of shares projected to vest for the respective awards at the end of their measurement periods. For the Series 1 award for fiscal year 2011, the actual vesting was determined to be 20% at the end of the measurement period. Performance shares that have vested are normally issued within 75 days of the end of the fiscal year.
	Series 2: Vesting for the Series 2 awards is subject to performance requirements pertaining to the growth rate in the Company’s basic earnings per share over a three-year period. For the fiscal year 2012 awards the expected percentage of vesting is based on performance through July 31, 2013 and reflects the percentage of shares projected to vest for the respective awards at the end of their measurement periods. For the Series 2 award for fiscal year 2011, the actual vesting was determined to be zero at the end of the measurement period. Performance shares that have vested are normally issued within 75 days of the end of the fiscal year.
	The weighted-average grant-date fair value of performance share awards forfeited during the fiscal year 2014 was $17.54. The weighted-average grant-date fair value of performance share awards outstanding at August 1, 2013 and July 31, 2014 was $17.66 and $14.88, respectively.
	The total fair value of performance shares vested during fiscal years 2014, 2013 and 2012 was approximately $45,000, $118,000, and $297,000, respectively.
	Time-Based Shares
	A summary of activity for time-based stock awards for the fiscal year ended July 31, 2014 is presented below:
			Shares			Weighted-Average
						Grant-Date
						Fair Value
	Non-vested on August 1, 2013			—		$	—
	Granted (1)			79,126			18.67
	Vested (2)			(29,026	)		17.79
	Forfeited			—			—
Non-vested on July 31, 2014			50,100			19.19
-1	Includes number of shares granted to non-employee directors and to certain employees during fiscal year 2014. The director awards were granted for either a two or three month service period. The director awards were granted on August 27, 2013, December 17, 2013, February 25, 2014 and May 20, 2014 and vested once the service period was complete. Generally the employee awards vest on the respective employee’s work anniversary dates. The Company recognizes compensation expense related to the awards over the respective service period in accordance with GAAP.
-2	Includes 27,526 shares granted to non-employee directors indicated above and 1,500 shares granted to employees.
The total fair value of shares vested during the fiscal year ended 2014, 2013 and 2012 was approximately $1,822,000, $542,000, and $545,000, respectively.

Discontinued_Operations

Discontinued Operations	12 Months Ended
	Jul. 31, 2014
Discontinued Operations	'
	12. DISCONTINUED OPERATIONS
	Discontinued operations reflected a loss before income taxes of $203,000 and $711,000 for fiscal years 2013 and 2012, respectively.
	In fiscal year 2008, the Company discontinued operations of its herbicide product line that had comprised the agricultural chemical segment. The Company incurred costs of $121,000 and $599,000 in the fiscal years ended July 31, 2013 and 2012, respectively, for dismantling the herbicide facility and for medical and other expenses associated with an accident that occurred in fiscal year 2012 while the facility was being dismantled.
	On March 1, 2012, the Company sold the business that had comprised the animal health segment to Bayer Healthcare LLC. For the fiscal year ended July 31, 2013 and 2012, $82,000 and $112,000 was reported as a loss from discontinued operations before income taxes. In fiscal year 2013 the loss included $57,000 for a post-closing inventory adjustment that was recognized as loss on sale of the business in the first fiscal quarter, and in fiscal year 2012 the loss included the gain on sale of approximately $90,000.
	In the sale of the animal health business, $1.0 million of the price is restricted cash held in escrow. The escrowed amount is to be held pending final acceptance by the EPA of certain studies being performed at the request of the EPA on tetrachlorvinphos, the active ingredient used in Rabon products. The escrowed funds are to be released to the Company once the EPA has finally accepted the studies, the buyer has voluntarily canceled the products, or after five years. The escrowed funds are to be released to the buyer if the EPA cancels the products to which the studies pertain before the funds are distributed to the Company.
	Animal health net sales and income before income tax reported in discontinued operations were as follows for the fiscal year ended July 31. There were no such amounts for fiscal 2014:
		2013			2012
		(Amounts in thousands)
	Revenue	$	57		$	5,643
	Income (loss) before income taxes		(25	)		(202	)

SEGMENT_INFORMATION

SEGMENT INFORMATION	12 Months Ended
	Jul. 31, 2014
SEGMENT INFORMATION	'
	13. SEGMENT INFORMATION
	The Company has two reportable segments—electronic chemicals and wood treating chemicals. The electronic chemicals segment includes the ultra pure chemicals business acquired from OM Group on May 31, 2013.
			2014			2013			2012
			(Amounts in thousands)
	Sales
	Electronic chemicals		$	253,754		$	165,755		$	159,451
	Wood treating			99,514			97,185			113,034
	Total sales for reportable segments		$	353,268		$	262,940		$	272,485
	Depreciation and amortization (1)
	Electronic chemicals		$	13,240		$	7,416		$	5,933
	Wood treating			400			418			504
	Other — general corporate			477			461			239
	Total consolidated depreciation and amortization		$	14,117		$	8,295		$	7,018
	Segment income from operations (2)
	Electronic chemicals		$	14,089		$	13,992		$	13,392
	Wood treating			8,390			10,522			15,622
	Total segment income from operations		$	22,479		$	24,514		$	29,014
	-1	Segment depreciation excludes depreciation for restructuring and realignment.
	-2	Segment income from operations includes allocated corporate overhead expenses, but excludes restructuring and realignment charges.
	Corporate overhead expenses allocated to segment income for the fiscal years ended July 31, 2014, 2013 and 2012 were as follows:
			2014			2013			2012
			(Amounts in thousands)
	Electronic chemicals		$	8,751		$	5,218		$	5,354
	Wood treating			4,458			4,461			4,406
	Total corporate overhead expense allocation		$	13,209		$	9,679		$	9,760
	For fiscal years 2014, 2013 and 2012 sales to one customer represented approximately 15%, 20%, and 19%, respectively of the Company’s net sales, and sales to another customer represented approximately 13%, 16% and 12% of the Company’s net sales. No other customers accounted for 10% or more of the Company’s net sales.
	A reconciliation of total segment to consolidated amounts as of July 31, 2014 and 2013, and for fiscal years 2014, 2013 and 2012 is set forth in the table below.
			2014			2013			2012
			(Amounts in thousands)
	Assets:
	Total assets for reportable segments		$	233,580		$	244,015
	Total assets for discontinued operations (1)			—			467
	Other current assets			7,690			9,120
	Other assets			9,588			8,413
	Total assets		$	250,858		$	262,015
	Sales:
	Total sales for reportable segments		$	353,268		$	262,940		$	272,485
	Other (2)			138			371			215
	Net sales		$	353,406		$	263,311		$	272,700
	Segment income from operations:
	Total segment income from operations(3)		$	22,479		$	24,514		$	29,014
	Other corporate expense(3)			(7,652	)		(7,334	)		(3,577	)
	Restructuring and realignment charges			(10,876	)		—			—
	Operating income			3,951			17,180			25,437
	Interest expense, net			(2,854	)		(1,771	)		(2,099	)
	Other expense, net			(831	)		(208	)		(269	)
	Income from continuing operations before income taxes		$	266		$	15,201		$	23,069
	Geographic Data
			2014			2013			2012
			(Amounts in thousands)
	Net sales:
	United States		$	212,903		$	200,184		$	229,140
	International			140,503			63,127			43,560
	Net sales		$	353,406		$	263,311		$	272,700
	Property, plant and equipment, net:
	United States		$	49,776		$	51,720
	International			42,674			44,968
	Property, plant and equipment, net		$	92,450		$	96,688
	-1	Reflects deferred tax assets as of July 31, 2013.
	-2	Primarily reflects income in connection with the sale of the animal health business. See Note 12.
	-3	Other corporate expense primarily represents employee stock-based compensation expenses and those expenses associated with the Company’s operation as a public entity such as board compensation, audit expense, fees related to the listing of our stock and expenses incurred to pursue acquisition opportunities. The amounts presented for fiscal year 2012 include corporate overhead previously allocated to the animal health business. These amounts were not reallocated to the remaining segments.

Restructuring_Events

Restructuring Events	12 Months Ended
	Jul. 31, 2014
Restructuring Events	'
	14. RESTRUCTURING EVENTS
	In October 2013, the Company announced that as part of global restructuring of its electronic chemicals operations, the Fremont, California manufacturing site acquired in the acquisition from OM Group will be closed, and production shifted primarily to the Company’s Hollister, California and Pueblo, Colorado facilities. The Company ceased production at the Fremont facility and completed site decommissioning prior to the end of fiscal year 2014. In November 2013, the Company announced that it will close a facility in Milan, Italy, and shift production to facilities in France and the United Kingdom. The Company will continue to operate the warehouse facility in Milan. The Company estimates that restructuring charges, exclusive of accelerated depreciation, will range between $7.0 million and $9.0 million cumulatively over fiscal years 2014 and 2015, and that accelerated depreciation with respect to the closed facilities will be approximately $4.0 million over those two fiscal years.
	At July 31, 2014, the accrued liability associated with restructuring and other related charges consisted of the following:
		Employee Costs			Decommissioning			Other			Total
					and
					Environmental
	Charges	$	2,631		$	1,260		$	34		$	3,925
	Payments		(698	)		(438	)		—			(1,136	)
	Adjustment		(45	)		(12	)		(7	)		(64	)
	Accrued liability at July 31, 2014	$	1,888		$	810		$	27		$	2,725
	Total accelerated depreciation for the fiscal year ended July 31, 2014 was $2.4 million.

Subsequent_Events

Subsequent Events	12 Months Ended
	Jul. 31, 2014
Subsequent Events	'
	15. SUBSEQUENT EVENTS
	Realignment
	The Company has announced a realignment of its hydrofluoric acid business. The Company will not renew the toll manufacturing agreement under which hydrofluoric acid products are produced for the Company by Chemtrade Logistics (“Chemtrade”) at its Bay Point, California facility (the agreement had formerly been with General Chemical). The Company will instead obtain its requirements for those products under supply agreements with other producers. Certain manufacturing equipment at the Bay Point facility had been acquired by the Company in 2007, when the electronic chemicals business of General Chemical was purchased. That equipment has been used for hydrofluoric acid production by Chemtrade. Under the manufacturing agreement, the Company is obligated to pay or reimburse Chemtrade for certain costs associated with the cessation of operations at Bay Point, including certain employee costs and the decommissioning, dismantling and removal of the Company’s manufacturing equipment at the site. The Company estimates that it will incur charges of $2.5 - $4.0 million for decontamination, decommissioning and dismantling, and $2.5 - $2.8 million for accelerated depreciation. Additionally, the Company is obligated to pay certain employee costs that it is unable to estimate at this time. In fiscal year 2014, the Company established an asset retirement obligation of $3.7 million for decontamination, decommissioning and dismantling at Bay Point and recorded depreciation expense of $1.0 million against that obligation, and the Company recognized $0.8 million of accelerated depreciation. In addition, the Company recognized an impairment charge in fiscal year 2014 of $2.7 million with respect to certain manufacturing equipment at Bay Point that is unrelated to hydrofluoric acid production. That equipment is no longer in service and will be disposed of.
	Credit Agreement
	The Company announced in its current report on Form 8-K filed on October 10, 2014 that it had entered into the New Credit Facility providing for a revolving loan facility of $150 million. The New Credit Facility replaced the Company’s prior credit agreement. The New Credit Facility was entered into with Wells Fargo Bank, National Association, Bank of America, N.A., HSBC Bank USA, National Association, and JPMorgan Chase Bank, N.A. The initial advance under the New Credit Facility was used to repay in full the $38.0 million then outstanding under its legacy revolving loan facility and the $20.0 million outstanding indebtedness under our note purchase agreement with The Prudential Insurance Company of America and Pruco Life Insurance Company, and accordingly these notes were reclassified as long-term obligations as of July 31, 2014. See Note 7 for further discussion regarding the New Credit Facility. The Company incurred approximately $693,000 in fees and expenses related to the New Credit Facility. Additionally, the Company paid approximately $325,000 for a make-whole penalty for the early repayment of the note purchase agreement.

Selected_Quarterly_Financial_D

Selected Quarterly Financial Data (Unaudited)	12 Months Ended
	Jul. 31, 2014
Selected Quarterly Financial Data (Unaudited)	'
	16. SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED)
	Quarterly results for the fiscal years ended July 31, 2014 and 2013 exclude the effect of discontinued operations, except for net income amounts. See note 12 for further detail on discontinued operations.
		First		Second			Third		Fourth
		Quarter		Quarter			Quarter		Quarter
		(Amounts in thousands, except per share data)
	Year Ended July 31, 2014
	Net sales	$	93,560	$	84,253		$	84,437	$	91,156
	Gross profit		25,567		25,190			24,765		27,977
	Operating income/(loss)		3,055		(1,603	)		2,914		(415	)
	Income/(loss) from continuing operations before income taxes		2,077		(2,384	)		1,883		(1,310	)
	Net income /(loss)		1,352		(2,744	)		1,226		(822	)
	Earnings/(loss) per share:
	Income/(loss) per share from continuing operations
	- basic	$	0.12	$	(0.24	)	$	0.11	$	(0.07	)
	- diluted		0.12		(0.24	)		0.11		(0.07	)
	Net income/(loss) per share
	- basic		0.12		(0.24	)		0.11		(0.07	)
	- diluted		0.12		(0.24	)		0.11		(0.07	)
	Year Ended July 31, 2013
	Net sales	$	65,336	$	56,959		$	59,929	$	81,087
	Gross profit		20,088		15,721			16,333		24,328
	Operating income		7,104		3,196			4,355		2,525
	Income from continuing operations before income taxes		6,643		2,725			3,918		1,915
	Net income		4,142		1,618			2,865		723
	Earnings Per share:
	Income per share from continuing operations
	- basic	$	0.36	$	0.14		$	0.25	$	0.06
	- diluted		0.36		0.14			0.25		0.06
	Net income per share
	- basic		0.36		0.14			0.25		0.06
	- diluted		0.36		0.14			0.25		0.06
	Earnings per share amounts are computed independently for each quarter presented. Therefore, the sum of the quarterly earnings per share may not equal annual earnings per share.

Schedule_II_Valuation_and_Qual

Schedule II - Valuation and Qualifying Accounts	12 Months Ended
	Jul. 31, 2014
Schedule II - Valuation and Qualifying Accounts	'
	KMG Chemicals, Inc.
	Schedule II — Valuation and Qualifying Accounts
	Fiscal years ended July 31, 2014, 2013 and 2012
	Description	Balance at		Charged to costs		Additions/			Balance at
		beginning		and expenses		Deductions			end
		of period							of period
	Year ended July 31, 2014:
	Allowance for doubtful accounts	$	224,000	$	108,000	$	(60,000	)	$	272,000
	Inventory obsolescence		180,000		221,000		(111,000	)		290,000
	Valuation allowance on deferred tax assets		—		1,725,000		—			1,725,000
	Year ended July 31, 2013:
	Allowance for doubtful accounts	$	16,000	$	208,000	$	—		$	224,000
	Inventory obsolescence		493,000		107,000		(420,000	)		180,000
	Valuation allowance on deferred tax assets		—		—		—			—
	Year ended July 31, 2012:
	Allowance for doubtful accounts	$	414,000	$	—	$	(398,000	)	$	16,000
	Inventory obsolescence		333,000		272,000		(112,000	)		493,000
	Valuation allowance on deferred tax assets		—		—		—			—

SUMMARY_OF_SIGNIFICANT_ACCOUNT1

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
	Jul. 31, 2014
General	'
	General — KMG Chemicals, Inc. (the “Company”) is involved principally in the manufacture, formulation and distribution of specialty chemicals in carefully focused markets through its two wholly-owned subsidiaries, KMG Electronic Chemicals, Inc. (“KMG EC”) and KMG-Bernuth, Inc. (“KMG Bernuth”).
	In its electronic chemicals business, the Company sells high purity wet process chemicals to the semiconductor industry, and in the wood treating chemicals business the Company sells two industrial wood treating chemicals, pentachlorophenol (“penta”) and creosote. The Company operates its electronic chemicals business through KMG EC in North America and through KMG Italia, S.r.l. (“KMG Italia”) and KMG Electronic Chemicals Holdings S.a.r.l (“KMG Lux”) (and its subsidiaries) in Europe and Asia. That business has facilities in the United States, the United Kingdom, France, Italy and Singapore. In the wood treating business the Company manufactures penta at its plant in Matamoros, Mexico through KMG de Mexico (“KMEX”), a Mexican corporation which is a wholly-owned subsidiary of KMG Bernuth. The Company sells its wood treating chemicals in the United States, Mexico and Canada. The electronic chemicals and wood treating businesses constitute two reportable segments. See Note 13.
Principles of Consolidation	'
	Principles of Consolidation — The consolidated financial statements include the accounts of KMG Chemicals, Inc. and its subsidiaries. All significant intercompany accounts and transactions have been eliminated in consolidation.
Use of Estimates	'
	Use of Estimates — The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates.
Reclassifications	'
	Reclassifications — Certain reclassifications of prior year amounts have been made to conform to current year presentation.
Cash and Cash Equivalents	'
	Cash and Cash Equivalents — The Company considers all investments with original maturities of three months or less when purchased to be cash equivalents.
Restricted Cash	'
	Restricted Cash — Restricted cash includes cash balances which are legally or contractually restricted to use. The Company’s restricted cash as of July 31, 2014 and 2013 includes proceeds that were placed in escrow in connection with the sale of the animal health business. See Note 12.
Fair Value of Financial Instruments	'
	Fair Value of Financial Instruments — The carrying value of financial instruments, including cash and cash equivalents, accounts receivable, and accounts payable approximate fair value because of the relatively short maturity of these instruments. The fair value of the Company’s debt at July 31, 2014 and 2013 approximated its carrying value since the debt obligations bear interest at a rate consistent with market rates.
Accounts Receivable	'
	Accounts Receivable — The Company’s trade accounts receivables are primarily from wood-treating customers and from electronic chemical customers worldwide. The Company extends credit based on an evaluation of the customer’s financial condition, generally without requiring collateral. Exposure to losses on receivables is dependent on each customer’s financial condition. At July 31, 2014 there was one customer that represented approximately 15% of the Company’s accounts receivable. At July 31, 2013 there were two customers that represented approximately 12% and 14%, respectively, of the Company’s accounts receivable.
	The Company records an allowance for doubtful accounts to reduce accounts receivable when the Company believes an account may not be collected. A provision for bad debt expense is recorded to selling, general and administrative expenses. The amount of bad debt expense recorded each period and the resulting adequacy of the allowance at the end of each period are determined using a customer-by-customer analyses of accounts receivable balances each period and our assessment of future bad debt exposure. Historically, write offs of accounts receivable balances have been insignificant. The allowance was $272,000 and $224,000 at July 31, 2014 and 2013, respectively.
Inventories	'
	Inventories — Inventories are valued at the lower of cost or market. For certain products, cost is generally determined using the first-in, first-out (“FIFO”) method. For certain other products the Company utilizes a weighted-average cost. The Company records inventory obsolescence as a reduction in its inventory when considered not salable.
Property, Plant, and Equipment	'
	Property, Plant, and Equipment — Property, plant, and equipment are stated at cost less accumulated depreciation and amortization. Major renewals and betterments are capitalized. Repairs and maintenance costs are expensed as incurred.
	Depreciation for equipment commences once placed in service, and depreciation for buildings and leasehold improvements commences once they are ready for their intended use. Depreciable life is determined through economic analysis. Depreciation for financial statement purposes is provided on the straight-line method.
	The estimated useful lives of classes of assets are as follows:
	Asset Class	Life (Years)
	Building		15 to 30
	Plant		10 to 18
	Equipment		3 to 15
	Leasehold improvements		Remaining life of the lease
	Depreciation expense was approximately $16.5 million (including accelerated depreciation of $4.2 million), $7.7 million and $6.5 million in fiscal years 2014, 2013 and 2012, respectively. See Notes 4 and 15.
Intangible Assets	'
	Intangible Assets — Identifiable intangible assets with a defined life are amortized using a straight-line or accelerated method over the useful lives of the assets. Identifiable intangible assets of an indefinite life are not amortized. These assets are required to be tested for impairment at least annually. If this review indicates that impairment has occurred, the carrying value of the intangible assets will be adjusted to fair value. Based on an assessment of qualitative factors, in accordance with GAAP, it was determined that there were no events or circumstances that would lead the Company to a determination that is more likely than not that the fair value of the applicable assets was less than its carrying value as of July 31, 2014 and 2013. The Company therefore concluded that its indefinite lived intangible assets were not impaired as of July 31, 2014 and 2013. It is the Company’s policy to expense costs as incurred in connection with the renewal or extension of its intangible assets.
Goodwill	'
	Goodwill — The Company has goodwill of $3.8 million and $8.8 million, respectively, associated with its wood treating and electronic chemicals segments. The carrying value of the Company’s goodwill is reviewed at least annually, and if this review indicates that it will not be recoverable the Company’s carrying value of goodwill will be adjusted to fair value. Based on an assessment of qualitative factors it was determined that there were no events or circumstances that would lead the Company to a determination that is more likely than not that the fair value of the applicable reporting unit was less than its carrying value as of July 31, 2014 and 2013. Accordingly, the Company determined that as of July 31, 2014 and 2013, goodwill was not impaired.
Asset retirement obligation	'
	Asset retirement obligation — The Company measures asset retirement obligations based upon the applicable accounting guidance, using certain assumptions including estimates for decommissioning, dismantling and disposal costs. In the event that operational or regulatory issues vary from its estimates, the Company could incur additional significant charges to income and increases in cash expenditures related to those costs. Certain conditional asset retirement obligations related to facilities have not been recorded in the consolidated financial statements due to uncertainties surrounding the ultimate settlement date and estimate of fair value related to a legal obligation to perform an asset retirement activity. When a reasonable estimate of the ultimate settlement can be made, an asset retirement obligation is recorded and such amounts may be material to the consolidated financial statements in the period in which they are recorded. In conjunction with its decision to exit the Bay Point facility, in fiscal year 2014 the Company recognized $3.7 million in asset retirement obligations related to the decommissioning, decontamination, and dismantling costs for which it is obligated under its manufacturing agreement. See Note 15.
Impairment of Long-Lived Assets	'
	Impairment of Long-Lived Assets — Long-lived assets, including property, plant and equipment, and intangible assets with defined lives, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. The determination of recoverability is based on an estimate of undiscounted future cash flows resulting from the use of the asset and its disposition. The measurement of an impairment loss for long-lived assets, where management expects to hold and use the asset, are based on the asset’s estimated fair value. Long-lived assets to be disposed of are reported at the lower of carrying amount or fair value. The Company recognized an impairment loss in fiscal year 2014 of $2.7 million on certain long-lived assets at the Bay Point, California facility where Chemtrade toll manufactures for the Company.
Revenue Recognition	'
	Revenue Recognition — The Company’s chemical products are sold in the open market and revenue is recognized when risk of loss and title to the products transfers to customers. In general, risk of loss transfers upon shipment to customers. The Company also recognizes service revenue in connection with technical support services and chemicals delivery and handling at customer facilities. Revenue is recognized as those services are provided.
Cost of Sales	'
	Cost of Sales — Cost of sales includes inbound freight charges, purchasing and receiving costs, depreciation, inspection costs and internal transfer costs. In the case of products manufactured by the Company, direct and indirect manufacturing costs and associated plant administrative expenses are included as well as laid-in cost of raw materials consumed in the manufacturing process.
Distribution Expenses	'
	Distribution Expenses — These expenses include outbound freight, depreciation, storage and handling expenses and other miscellaneous costs (including depreciation and amortization) associated with product storage, handling and distribution.
Selling, General and Administrative Expenses	'
	Selling, General and Administrative Expenses — These expenses include selling expenses, corporate headquarters’ expenses, amortization of intangible assets and environmental regulatory support expenses.
Shipping and Handling Costs	'
	Shipping and Handling Costs — Shipping and handling costs are included in cost of sales and distribution expenses. Inbound freight charges and internal transfer costs are included in cost of sales. Product storage and handling costs and the cost of distributing products to the Company’s customers are included in distribution expenses.
Income Taxes	'
	Income Taxes — The Company files a consolidated United States federal income tax return, and for financial reporting purposes, provides income taxes for the differences between the financial statement carrying amounts of assets and liabilities and their tax bases in accordance with GAAP. See Note 5.
Earnings Per Share	'
	Earnings Per Share — Basic earnings per common share amounts are calculated using the average number of common shares outstanding during each period. Diluted earnings per share assumes the issuance of restricted stock awards and the exercise of stock options having exercise prices less than the average market price during the applicable period, using the treasury stock method.
Foreign Currency Translation	'
	Foreign Currency Translation — The functional currency of the Company’s Mexico operations is the U.S. Dollar. As a result, monetary assets and liabilities for KMEX are re-measured to U.S. dollars at current rates at the balance sheet dates, income statement items are re-measured at the average monthly exchange rates for the dates those items were recognized, and certain assets (including plant and production equipment) are re-measured at historical exchange rates. Foreign currency transaction gains and losses are included in the statement of operations as incurred along with gains and losses from currency re-measurement. These gains and losses were nominal in fiscal years 2014, 2013 and 2012.
	The Company’s international operations in the electronic chemicals business are in Europe and Singapore, and use local currencies as the functional currency, including the GB Pound, Euro and Singapore Dollar. The translation adjustment resulting from currency translation of the local currency into the reporting currency (U.S. Dollar) is included as a separate component of stockholders’ equity. The assets and liabilities have been translated from local currencies into U.S. Dollars using exchange rates in effect at the balance sheet dates. Results of operations have been translated using the average exchange rates during the period. Foreign currency translation resulted in a translation adjustment gains of $3.1 million and $1.8 million in fiscal years 2014 and 2013, respectively, and a loss of $3.1 million in fiscal year 2012, each of which are included in accumulated other comprehensive income/(loss) in the consolidated balance sheets.
Stock-Based Compensation	'
	Stock-Based Compensation — The Company’s stock-based compensation expense is based on the fair value of the award measured on the date of grant. For stock option awards, the grant date fair value is measured using a Black-Scholes option valuation model. For stock awards, the Company’s stock price on the date of the grant is used to measure the grant date fair value. For awards of stock which are based on a fixed monetary value the grant date fair value is based on the monetary value. Stock-based compensation costs are recognized as an expense over the requisite service period of the award using the straight-line method.
Recent Accounting Standards	'
	Recent Accounting Standards
	The Company has considered all recently issued accounting standards updates and SEC rules and interpretive releases.
	In April 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (“ASU”) No. 2014-08, “Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity.” This ASU changes the requirements for reporting discontinued operations. Under the ASU, discontinued operations are defined as either a component of an entity or group of components that has been disposed meets the criteria to be classified as held-for sale, or has been abandoned/spun-off, and represents a strategic shift that has (or will have a major effect on an entity’s operations and financial results,) or a business or nonprofit activity that, on acquisition, meets the criteria to be classified as held-for sale. This ASU is effective for interim periods beginning after December 15, 2014, is applied prospectively and early adoption is permitted. This ASU does not have an impact on our year-to-date period ending July 31, 2014. The impact on the Company will be dependent on any transaction that is within the scope of the new guidance.
	In May 2014, the FASB issued Accounting Standards Update (“ASU”) No. 2014-09, “Revenue from Contracts with Customers,” which provides guidance for revenue recognition. The standard’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. The new guidance is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. Early application is not permitted. The Company is currently assessing the potential impact of ASU No. 2014-09 on its financial statements.

SUMMARY_OF_SIGNIFICANT_ACCOUNT2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)	12 Months Ended
	Jul. 31, 2014
Estimated Useful Lives of Classes of Assets	'
	The estimated useful lives of classes of assets are as follows:
	Asset Class	Life (Years)
	Building		15 to 30
	Plant		10 to 18
	Equipment		3 to 15
	Leasehold improvements		Remaining life of the lease

ACQUISITIONS_Tables

ACQUISITIONS (Tables)	12 Months Ended
	Jul. 31, 2014
Summary of Acquired Assets and Assumed Liabilities and Preliminary Acquisition Accounting for Fair Value of Assets Recognized	'
	The following table summarizes final acquired assets and assumed liabilities and the acquisition accounting for the fair value of the assets and liabilities recognized in the consolidated balance sheets at the acquisition date (in thousands):
	Cash	$	689
	Accounts receivable		14,698
	Inventory		11,047
	Other current assets		1,963
	Property, plant and equipment		28,939
	Intangible assets:
	Value of product qualifications		12,800
	Non-compete agreement		1,900
	Transition services		154
	Total intangible assets		14,854
	Total assets acquired	$	72,190
	Current liabilities		11,401
	Other long-term liabilities		6,206
	Total liabilities assumed		17,607
	Net assets acquired	$	54,583
Unaudited Pro Forma Financial Information	'
	The following table sets forth pro forma results for the fiscal years ended July 31, 2013 and 2012 had the acquisition occurred as of the beginning of fiscal year 2012. The unaudited pro forma financial information is not necessarily indicative of what our consolidated results of operations would have been had we completed the acquisition as of the dates indicated.
		(Unaudited) (in thousands,
		except per share data)
		2013		2012
	Revenues	$	340,427	$	366,882
	Operating income		15,955		26,083
	Net income		9,123		13,056
	Earnings per share — basic	$	0.79	$	1.15

Inventories_Tables

Inventories (Tables)	12 Months Ended
	Jul. 31, 2014
Inventories	'
	Inventories are summarized as follows at July 31, 2014 and 2013 (in thousands):
		2014			2013
	Raw materials and supplies	$	7,914		$	8,003
	Work in process		1,508			1,382
	Supplies		1,793			1,730
	Finished products		34,343			42,452
	Less reserve for inventory obsolescence		(290	)		(180	)
	Inventories, net	$	45,268		$	53,387

Property_Plant_and_Equipment_T

Property, Plant and Equipment (Tables)	12 Months Ended
	Jul. 31, 2014
Property, Plant, and Equipment and Related Accumulated Depreciation and Amortization	'
	Property, plant, and equipment and related accumulated depreciation and amortization are summarized as follows at July 31, 2014 and 2013 (in thousands):
		2014			2013
	Land	$	15,763		$	15,620
	Buildings and improvements		42,664			41,273
	Equipment		77,557			66,807
	Leasehold improvements		143			143
			136,127			123,843
	Less accumulated depreciation and amortization		(52,972	)		(36,933	)
			83,155			86,910
	Construction-in-progress		9,295			9,778
	Property, plant and equipment, net	$	92,450		$	96,688

INCOME_TAXES_Tables

INCOME TAXES (Tables)	12 Months Ended
	Jul. 31, 2014
Geographical Sources of Income from Continuing Operations Before Income Taxes	'
	The Company is subject to United States federal, state and foreign taxes on its operations. The geographical sources of income from continuing operations before income taxes for each of the three years ended July 31 are as follows (in thousands):
		2014			2013			2012
	United States	$	1,923		$	12,033		$	21,789
	Foreign		(1,657	)		3,168			1,280
	Income from continuing operations before income taxes	$	266		$	15,201		$	23,069
Components of Income Tax Expense (Benefit) from Continuing Operations	'
	The components of income tax expense/(benefit) from continuing operations for the years ended July 31 consisted of the following (in thousands):
		2014			2013			2012
	Current:
	Federal	$	2,582		$	2,833		$	5,639
	Foreign		1,071			1,437			686
	State		603			197			1,071
			4,256			4,467			7,396
	Deferred:
	Federal		(1,978	)		1,426			1,441
	Foreign		(897	)		(282	)		(104	)
	State		(127	)		104			21
			(3,002	)		1,248			1,358
	Total	$	1,254		$	5,715		$	8,754
Deferred Tax Assets and Liabilities	'
	Deferred income taxes are provided on all temporary differences between financial and taxable income. The following table presents the components of the Company’s deferred tax assets and liabilities at July 31, 2014 and 2013 (in thousands):
		2014			2013
	Deferred tax assets:
	Current deferred tax assets:
	Bad debt expense	$	326		$	259
	Inventory		787			920
	Accrued liabilities		1,545			166
	Employee benefits		1,879			606
	Other		102			159
	Less valuation allowance		(636	)		—
	Total current deferred tax assets	$	4,003		$	2,110
	Non-current deferred tax assets
	Net operating loss	$	839		$	803
	Deferred compensation		616			793
	Less valuation allowance		(1,090	)		—
	Total non-current deferred tax assets	$	365		$	1,596
	Deferred tax liabilities:
	Current deferred tax liabilities:
	Other	$	(128	)	$	(152	)
	Prepaid assets		(398	)		(562	)
	Total current deferred tax liabilities:	$	(526	)	$	(714	)
	Non-current deferred tax liabilities:
	Difference in amortization basis of intangibles	$	(7,129	)	$	(6,020	)
	Difference in depreciable basis of property		(4,575	)		(5,965	)
	Total non-current deferred tax liabilities		(11,704	)		(11,985	)
	Net non-current deferred tax liability	$	(7,862	)	$	(8,993	)
Difference Between Actual Tax Provision	'
	The following table accounts for the differences between the actual tax provision, and the amounts obtained by applying the applicable statutory United States federal income tax rate of 35% to income from continuing operations before income taxes for each of the years ended July 31, 2014, 2013, and 2012, respectively (in thousands):
		2014			2013			2012
	Income taxes at the federal statutory rate	$	93		$	5,320		$	8,074
	Effect of foreign operations		329			(65	)		160
	Change in valuation allowance		1,725			—			—
	Adjustments to foreign operations		(916	)		—			—
	State income taxes, net of federal income tax effect		269			232			717
	Acquisition related cost		—			714			—
	Other		(246	)		(486	)		(197	)
	Total	$	1,254		$	5,715		$	8,754

INTANGIBLE_ASSETS_Tables

INTANGIBLE ASSETS (Tables)	12 Months Ended
	Jul. 31, 2014
Intangible Assets	'
	Intangible assets are summarized as follows (in thousands):
		Number of Years
		Weighted				July 31, 2014
		Average		Original		Accumulated			Foreign		Carrying
		Amortization		Cost		Amortization			Currency		Amount
		Period							Translation
	Intangible assets subject to amortization
	(range of useful life):
	Electronic chemicals-related contracts (5-8 years)		6.6	$	2,204	$	(559	)	$	79	$	1,724
	Electronic chemicals-related trademarks and patents (10-15 years)		12		117		(67	)		—		50
	Electronic chemicals-value of product qualifications (5-15 years)		14.1		14,100		(2,426	)		801		12,475
	Total intangible assets subject to amortization		13.1	$	16,421	$	(3,052	)	$	880		14,249
	Intangible assets not subject to amortization:
	Creosote product registrations											5,339
	Penta product registrations											8,765
	Total intangible assets not subject to amortization											14,104
	Total intangible assets, net										$	28,353
		Number of Years
		Weighted		July 31, 2013
		Average
		Amortization		Original		Accumulated			Carrying
		Period		Cost		Amortization			Amount
	Intangible assets subject to amortization
	(range of useful life):
	Electronic chemicals-related contracts (5-8 years)		6.5	$	2,297	$	(253	)	$	2,044
	Electronic chemicals-related trademarks and patents (10-15 years)		12		117		(57	)		60
	Electronic chemicals-value of product qualifications (5-15 years)		14.1		14,100		(1,047	)		13,053
	Total intangible assets subject to amortization		13	$	16,514	$	(1,357	)		15,157
	Intangible assets not subject to amortization:
	Creosote product registrations									5,339
	Penta product registrations									8,765
	Total intangible assets not subject to amortization									14,104
	Total intangible assets, net								$	29,261
Schedule of Goodwill	'
	The following table presents carrying value of goodwill by segment as of July 31, 2014, 2013 and 2012 (in thousands):
		Wood		Electronic		Total
		Treating		Chemicals
	Balance as of July 31, 2012	$	3,779	$	—	$	3,779
	Goodwill resulting from the UPC acquisition		—		7,150		7,150
	Balance as of July 31, 2013		3,779		7,150		10,929
	Working capital adjustment from the UPC acquisition		—		535		535
	Finalization of purchase price allocation		—		880		880
	Foreign currency translation adjustment		—		251		251
	Balance as of July 31, 2014	$	3,779	$	8,816	$	12,595

LONGTERM_OBLIGATIONS_Tables

LONG-TERM OBLIGATIONS (Tables)	12 Months Ended
	Jul. 31, 2014
Long-Term Debt and Current Maturities	'
	The Company’s long-term debt and current maturities as of July 31, 2014 and July 31, 2013 consisted of the following (in thousands):
		July 31,			July 31,
		2014			2013
	Senior Secured Debt:
	Note Purchase Agreement, maturing on December 31, 2014, interest rate of 7.43%	$	20,000		$	20,000
	Revolving Loan Facility, maturing on April 30, 2018, variable interest rates based on LIBOR plus 2.0% and 1.50% at July 31, 2014 and 2013, respectively		40,000			65,000
	Total debt		60,000			85,000
	Current maturities of long-term debt		—			—
	Long-term debt, net of current maturities	$	60,000		$	85,000
Ratio of Funded Debt to EBITDA	'
	The revolving loan under the New Credit Facility bears interest at varying rate of LIBOR plus a margin based on funded debt to earnings before interest, taxes, depreciation and amortization (“EBITDA”), as described in the table.
	Ratio of Funded Debt to EBITDA	Margin
	Equal to or greater than 3.0 to 1.0		1.875	%
	Equal to or greater than 2.75 to 1.0, but less than 3.0 to 1.0		1.625	%
	Equal to or greater than 2.50 to 1.0, but less than 2.75 to 1.0		1.5	%
	Equal to or greater than 2.25 to 1.0, but less than 2.50 to 1.0		1.375	%
	Equal to or greater than 2.00 to 1.0, but less than 2.25 to 1.0		1.25	%
	Equal to or greater than 1.50 to 1.0, but less than 2.00 to 1.0		1.125	%
	Less than 1.50 to 1.0		1	%
Principal Payments Due Under Long-term Debt Agreements	'
	After considering the New Credit Facility, principal payments due under long-term debt agreements as of July 31, 2014 for the fiscal years ended July 31 are as follows (in thousands):
		Total			2015		2016		2017		2018		2019		Thereafter
	Long-term debt	$	60,000		$	—	$	—	$	—	$	—	$	—	$	60,000

Commitments_And_Contingencies_

Commitments And Contingencies (Tables)	12 Months Ended
	Jul. 31, 2014
Future Payments Under Certain Contractual Obligations	'
	Our obligations to make future payments under certain contractual obligations as of July 31, 2014 are summarized in the following table (in thousands):
			Total		2015		2016		2017		2018		2019		Thereafter
	Operating leases		$	17,512	$	5,333	$	4,396	$	2,442	$	1,388	$	1,027	$	2,926
	Purchase obligations (1)			129,146		56,087		43,102		27,870		2,087		—		—
	Total		$	146,658	$	61,420	$	47,498	$	30,312	$	3,475	$	1,027	$	2,926
	-1	Consists primarily of raw materials purchase contracts. These are typically not fixed price arrangements. The prices are based on the prevailing market prices.

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	12 Months Ended
	Jul. 31, 2014
Basic and Diluted Earnings Per Share	'
	The following table presents information necessary to calculate basic and diluted earnings per share for periods indicated:
		Year Ended
		2014			2013			2012
		(Amounts in thousands, except per share data)
	Income/(loss) from continuing operations	$	(988	)	$	9,486		$	14,315
	Income/(loss) from discontinued operations		—			(138	)		(490	)
	Net income class	$	(988	)	$	9,348		$	13,825
	Weighted average shares outstanding — basic		11,615			11,487			11,363
	Dilutive effect of options/warrants and stock awards		—			91			165
	Weighted average shares outstanding — diluted		11,615			11,578			11,528
	Basic earnings per share
	Basic earnings per share from continuing operations	$	(0.09	)	$	0.82		$	1.26
	Basic earnings per share on income/(loss) from discontinued operations		—			(0.01	)		(0.04	)
	Basic earnings per share	$	(0.09	)	$	0.81		$	1.22
	Diluted earnings per share
	Diluted earnings per share from continuing operations	$	(0.09	)	$	0.82		$	1.24
	Diluted earnings per share on income/(loss) from discontinued operations		—			(0.01	)		(0.04	)
	Diluted earnings per share	$	(0.09	)	$	0.81		$	1.2

STOCKBASED_COMPENSATION_Tables

STOCK-BASED COMPENSATION (Tables)	12 Months Ended
	Jul. 31, 2014
Stock Option Activity Associated with Employee Compensation	'
	A summary of option activity associated with employee compensation for the fiscal year ended July 31, 2014 is presented below.
			Shares			Weighted-
						Average
						Exercise Price
	Outstanding on August 1, 2013			58,000		$	4.03
	Granted			—			—
	Exercised			(58,000	)		4.03
	Forfeited/Expired			—
	Outstanding on July 31, 2014			—		$	—
Summary of Performance Based Stock Awards Granted	'
	A summary of the performance based stock awards granted to certain executives as Series 1 awards in fiscal years 2013 and 2014 and Series 1 and Series 2 awards in fiscal years 2012 and 2011 is detailed below.
	Date of Grant		Series			Maximum		Grant Date		Measurement		Actual or			Shares Projected
			Award			Award		Fair Value		Period Ending		Expected			to Vest or Vested (2)
						(Shares)						Percentage of
												Vesting (2)
	Fiscal Year 2014 Award
	2/25/2014 (1)			Series 1			192,344	$	14.88		7/31/16		53	%		102,737
	Fiscal Year 2013 Award
	12/4/2012 (1)			Series 1			58,600	$	18.75		7/31/15		0	%		—
							250,944
	Fiscal Year 2012 Award
	2/27/12			Series 1			300	$	18.08		7/31/14		10	%		30
	2/27/12			Series 2			200	$	18.08		7/31/14		0	%		—
							500									30
	10/28/11			Series 1			15,300	$	15.3		7/31/14		10	%		1,380
	10/28/11			Series 2			10,200	$	15.3		7/31/14		0	%		—
							25,500									1,380
	10/11/2011 (1)			Series 1			28,150	$	14.16		7/31/14		10	%		1,666
	10/11/2011 (1)			Series 2			18,766	$	14.16		7/31/14		0	%		—
							46,916									1,666
	Total						72,916									3,076
	-1	Series 1 and Series 2 awards to J. Neal Butler were forfeited upon his termination of employment on July 10, 2013 and the table reflects that forfeiture. Shares forfeited included 59,217 shares granted in fiscal year 2013, 30,837 Series 1 and 20,558 Series 2 awards granted in fiscal year 2012, and 24,201 Series 1 and 16,134 Series 2 awards granted in fiscal year 2011.
	-2	For performance shares granted before 2013, the above table represents the actual percentage vesting and shares vested as of the end of the measurement period ended July 31, 2014. For the other performance share grants identified in the above table, the information set forth is the expected vesting percentage and the shares projected to vest.
Summary of Activity for Time-Based Stock Awards	'
	A summary of activity for time-based stock awards for the fiscal year ended July 31, 2014 is presented below:
			Shares			Weighted-Average
						Grant-Date
						Fair Value
	Non-vested on August 1, 2013			—		$	—
	Granted (1)			79,126			18.67
	Vested (2)			(29,026	)		17.79
	Forfeited			—			—
	Non-vested on July 31, 2014			50,100			19.19
	-1	Includes number of shares granted to non-employee directors and to certain employees during fiscal year 2014. The director awards were granted for either a two or three month service period. The director awards were granted on August 27, 2013, December 17, 2013, February 25, 2014 and May 20, 2014 and vested once the service period was complete. Generally the employee awards vest on the respective employee’s work anniversary dates. The Company recognizes compensation expense related to the awards over the respective service period in accordance with GAAP.
	-2	Includes 27,526 shares granted to non-employee directors indicated above and 1,500 shares granted to employees.

Discontinued_Operations_Tables

Discontinued Operations (Tables)	12 Months Ended
	Jul. 31, 2014
Sales and Income Before Income Tax Reported in Discontinued Operations	'
	Animal health net sales and income before income tax reported in discontinued operations were as follows for the fiscal year ended July 31. There were no such amounts for fiscal 2014:
		2013			2012
		(Amounts in thousands)
	Revenue	$	57		$	5,643
	Income (loss) before income taxes		(25	)		(202	)

SEGMENT_INFORMATION_Tables

SEGMENT INFORMATION (Tables)	12 Months Ended
	Jul. 31, 2014
Segment Information	'
			2014			2013			2012
			(Amounts in thousands)
	Sales
	Electronic chemicals		$	253,754		$	165,755		$	159,451
	Wood treating			99,514			97,185			113,034
	Total sales for reportable segments		$	353,268		$	262,940		$	272,485
	Depreciation and amortization (1)
	Electronic chemicals		$	13,240		$	7,416		$	5,933
	Wood treating			400			418			504
	Other — general corporate			477			461			239
	Total consolidated depreciation and amortization		$	14,117		$	8,295		$	7,018
	Segment income from operations (2)
	Electronic chemicals		$	14,089		$	13,992		$	13,392
	Wood treating			8,390			10,522			15,622
	Total segment income from operations		$	22,479		$	24,514		$	29,014
	-1	Segment depreciation excludes depreciation for restructuring and realignment.
	-2	Segment income from operations includes allocated corporate overhead expenses, but excludes restructuring and realignment charges.
Overhead Expenses Allocated to Segment Income	'
	Corporate overhead expenses allocated to segment income for the fiscal years ended July 31, 2014, 2013 and 2012 were as follows:
			2014			2013			2012
			(Amounts in thousands)
	Electronic chemicals		$	8,751		$	5,218		$	5,354
	Wood treating			4,458			4,461			4,406
	Total corporate overhead expense allocation		$	13,209		$	9,679		$	9,760
Reconciliation of Total Segment to Consolidated Amounts	'
	A reconciliation of total segment to consolidated amounts as of July 31, 2014 and 2013, and for fiscal years 2014, 2013 and 2012 is set forth in the table below.
			2014			2013			2012
			(Amounts in thousands)
	Assets:
	Total assets for reportable segments		$	233,580		$	244,015
	Total assets for discontinued operations (1)			—			467
	Other current assets			7,690			9,120
	Other assets			9,588			8,413
	Total assets		$	250,858		$	262,015
	Sales:
	Total sales for reportable segments		$	353,268		$	262,940		$	272,485
	Other (2)			138			371			215
	Net sales		$	353,406		$	263,311		$	272,700
	Segment income from operations:
	Total segment income from operations(3)		$	22,479		$	24,514		$	29,014
	Other corporate expense(3)			(7,652	)		(7,334	)		(3,577	)
	Restructuring and realignment charges			(10,876	)		—			—
	Operating income			3,951			17,180			25,437
	Interest expense, net			(2,854	)		(1,771	)		(2,099	)
	Other expense, net			(831	)		(208	)		(269	)
	Income from continuing operations before income taxes		$	266		$	15,201		$	23,069
Geographic Data	'
	Geographic Data
			2014			2013			2012
			(Amounts in thousands)
	Net sales:
	United States		$	212,903		$	200,184		$	229,140
	International			140,503			63,127			43,560
	Net sales		$	353,406		$	263,311		$	272,700
	Property, plant and equipment, net:
	United States		$	49,776		$	51,720
	International			42,674			44,968
	Property, plant and equipment, net		$	92,450		$	96,688
	-1	Reflects deferred tax assets as of July 31, 2013.
	-2	Primarily reflects income in connection with the sale of the animal health business. See Note 12.
	-3	Other corporate expense primarily represents employee stock-based compensation expenses and those expenses associated with the Company’s operation as a public entity such as board compensation, audit expense, fees related to the listing of our stock and expenses incurred to pursue acquisition opportunities. The amounts presented for fiscal year 2012 include corporate overhead previously allocated to the animal health business. These amounts were not reallocated to the remaining segments.

Restructuring_Events_Tables

Restructuring Events (Tables)	12 Months Ended
	Jul. 31, 2014
Accrued Liability associated with Restructuring and Other Related Charges	'
	At July 31, 2014, the accrued liability associated with restructuring and other related charges consisted of the following:
		Employee Costs			Decommissioning			Other			Total
					and
					Environmental
	Charges	$	2,631		$	1,260		$	34		$	3,925
	Payments		(698	)		(438	)		—			(1,136	)
	Adjustment		(45	)		(12	)		(7	)		(64	)
	Accrued liability at July 31, 2014	$	1,888		$	810		$	27		$	2,725

Selected_Quarterly_Financial_D1

Selected Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Jul. 31, 2014
Selected Quarterly Financial Data	'
		First		Second			Third		Fourth
		Quarter		Quarter			Quarter		Quarter
		(Amounts in thousands, except per share data)
	Year Ended July 31, 2014
	Net sales	$	93,560	$	84,253		$	84,437	$	91,156
	Gross profit		25,567		25,190			24,765		27,977
	Operating income/(loss)		3,055		(1,603	)		2,914		(415	)
	Income/(loss) from continuing operations before income taxes		2,077		(2,384	)		1,883		(1,310	)
	Net income /(loss)		1,352		(2,744	)		1,226		(822	)
	Earnings/(loss) per share:
	Income/(loss) per share from continuing operations
	- basic	$	0.12	$	(0.24	)	$	0.11	$	(0.07	)
	- diluted		0.12		(0.24	)		0.11		(0.07	)
	Net income/(loss) per share
	- basic		0.12		(0.24	)		0.11		(0.07	)
	- diluted		0.12		(0.24	)		0.11		(0.07	)
	Year Ended July 31, 2013
	Net sales	$	65,336	$	56,959		$	59,929	$	81,087
	Gross profit		20,088		15,721			16,333		24,328
	Operating income		7,104		3,196			4,355		2,525
	Income from continuing operations before income taxes		6,643		2,725			3,918		1,915
	Net income		4,142		1,618			2,865		723
	Earnings Per share:
	Income per share from continuing operations
	- basic	$	0.36	$	0.14		$	0.25	$	0.06
	- diluted		0.36		0.14			0.25		0.06
	Net income per share
	- basic		0.36		0.14			0.25		0.06
	- diluted		0.36		0.14			0.25		0.06

Recovered_Sheet1

Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	12 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
	Segment	Customer
	Product
	Customer
Schedule Of Significant Accounting Policies [Line Items]	'	'	'
Number of industrial wood treating chemicals products	2	'	'
Number of reportable segments	2	'	'
Number of customers representing more than 10% of accounts receivable	1	2	'
Allowance for accounts receivable	$272,000	$224,000	'
Depreciation expense	16,500,000	7,700,000	6,500,000
Depreciation related to restructuring and realignment	4,210,000	'	'
Goodwill	12,595,000	10,929,000	3,779,000
Asset retirement obligations recognized	3,700,000	'	'
Impairment loss on long-lived assets	2,741,000	'	'
Foreign currency translation resulting in gains (loss)	3,100,000	1,800,000	-3,100,000
Wood Treating	'	'	'
Schedule Of Significant Accounting Policies [Line Items]	'	'	'
Goodwill	3,779,000	3,779,000	3,779,000
Electronic Chemicals	'	'	'
Schedule Of Significant Accounting Policies [Line Items]	'	'	'
Goodwill	$8,816,000	$7,150,000	'
First Customer | Accounts Receivable	'	'	'
Schedule Of Significant Accounting Policies [Line Items]	'	'	'
Percentage of accounts receivable for significant customer	15.00%	12.00%	'
Second Customer | Accounts Receivable	'	'	'
Schedule Of Significant Accounting Policies [Line Items]	'	'	'
Percentage of accounts receivable for significant customer	'	14.00%	'

Estimated_Useful_Lives_of_Clas

Estimated Useful Lives of Classes of Assets (Detail)	12 Months Ended
	Jul. 31, 2014
Building | Minimum	'
Property, Plant and Equipment [Line Items]	'
Useful lives of assets	'15 years
Building | Maximum	'
Property, Plant and Equipment [Line Items]	'
Useful lives of assets	'30 years
Plant | Minimum	'
Property, Plant and Equipment [Line Items]	'
Useful lives of assets	'10 years
Plant | Maximum	'
Property, Plant and Equipment [Line Items]	'
Useful lives of assets	'18 years
Equipment | Minimum	'
Property, Plant and Equipment [Line Items]	'
Useful lives of assets	'3 years
Equipment | Maximum	'
Property, Plant and Equipment [Line Items]	'
Useful lives of assets	'15 years
Leasehold improvements	'
Property, Plant and Equipment [Line Items]	'
Useful life of leasehold	'remaining life of the lease

Acquisitions_Additional_Inform

Acquisitions - Additional Information (Detail) (USD $)

3 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

12 Months Ended

Jul. 31, 2014

Apr. 30, 2014

Jan. 31, 2014

Oct. 31, 2013

Jul. 31, 2013

Apr. 30, 2013

Jan. 31, 2013

Oct. 31, 2012

Jul. 31, 2014

Jul. 31, 2013

Jul. 31, 2012

31-May-13

Jul. 31, 2013

Jul. 31, 2012

31-May-13

Jul. 31, 2013

Jul. 31, 2012

Jul. 31, 2013

Om Group Incorporation

Om Group Incorporation

Om Group Incorporation

Om Group Incorporation

Om Group Incorporation

Om Group Incorporation

Performance Products And Solutions

Revolving Loan Facility

Revised Credit Facility

Revised Credit Facility

Secured Debt

Secured Debt

Secured Debt

Business Acquisition [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Business acquisition, cash paid

'

'

'

'

'

'

'

'

'

'

'

$63,200,000

'

'

'

'

'

'

Business acquisition, working capital adjustment

'

'

'

'

'

'

'

'

'

'

'

149,000

'

'

'

'

'

'

Long-term debt

60,000,000

'

'

'

85,000,000

'

'

'

60,000,000

85,000,000

'

'

'

'

65,000,000

'

'

'

Acquisition-related costs incurred

'

'

'

'

'

'

'

'

'

'

'

'

2,100,000

'

'

'

'

'

Net sales

91,156,000

84,437,000

84,253,000

93,560,000

81,087,000

59,929,000

56,959,000

65,336,000

353,406,000

263,311,000

272,700,000

'

16,000,000

'

'

'

'

'

Net income/(loss)

-822,000

1,226,000

-2,744,000

1,352,000

723,000

2,865,000

1,618,000

4,142,000

-988,000

9,348,000

13,825,000

'

979,000

'

'

'

'

'

Integration costs related to acquisition

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

577,000

Interest expense related to the revised credit facility

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,000,000

1,600,000

'

Depreciation and amortization

'

'

'

'

'

'

'

'

'

'

'

'

$3,100,000

$3,300,000

'

'

'

'

Summary_of_Acquired_Assets_and

Summary of Acquired Assets and Assumed Liabilities and Preliminary Acquisition Accounting for Fair Value of Assets Recognized (Detail) (USD $)	Jul. 31, 2014
In Thousands, unless otherwise specified
Business Acquisition [Line Items]	'
Cash	$689
Accounts receivable	14,698
Inventory	11,047
Other current assets	1,963
Property, plant and equipment	28,939
Intangible assets:	'
Total intangible assets	14,854
Total assets acquired	72,190
Current liabilities	11,401
Other long-term liabilities	6,206
Total liabilities assumed	17,607
Net assets acquired	54,583
Value of product qualifications	'
Intangible assets:	'
Total intangible assets	12,800
Non-compete agreement	'
Intangible assets:	'
Total intangible assets	1,900
Transition services	'
Intangible assets:	'
Total intangible assets	$154

Unaudited_Pro_Forma_Financial_

Unaudited Pro Forma Financial Information (Detail) (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jul. 31, 2013	Jul. 31, 2012
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]	'	'
Revenues	$340,427	$366,882
Operating income	15,955	26,083
Net income	$9,123	$13,056
Earnings per share - basic	$0.79	$1.15

Inventories_Detail

Inventories (Detail) (USD $)	Jul. 31, 2014	Jul. 31, 2013
In Thousands, unless otherwise specified
Inventory [Line Items]	'	'
Raw materials and supplies	$7,914	$8,003
Work in process	1,508	1,382
Supplies	1,793	1,730
Finished products	34,343	42,452
Less reserve for inventory obsolescence	-290	-180
Inventories, net	$45,268	$53,387

Property_Plant_and_Equipment_a

Property, Plant, and Equipment and Related Accumulated Depreciation and Amortization (Detail) (USD $)	Jul. 31, 2014	Jul. 31, 2013
In Thousands, unless otherwise specified
Property, Plant and Equipment [Line Items]	'	'
Property, plant and equipment, gross	$136,127	$123,843
Less accumulated depreciation and amortization	-52,972	-36,933
Property Plant And Equipment Excluding Construction In Progress, Total	83,155	86,910
Construction-in-progress	9,295	9,778
Property, plant and equipment, net	92,450	96,688
Land	'	'
Property, Plant and Equipment [Line Items]	'	'
Property, plant and equipment, gross	15,763	15,620
Buildings and improvements	'	'
Property, Plant and Equipment [Line Items]	'	'
Property, plant and equipment, gross	42,664	41,273
Equipment	'	'
Property, Plant and Equipment [Line Items]	'	'
Property, plant and equipment, gross	77,557	66,807
Leasehold improvements	'	'
Property, Plant and Equipment [Line Items]	'	'
Property, plant and equipment, gross	$143	$143

Geographical_Sources_of_Income

Geographical Sources of Income from Continuing Operations Before Income Taxes (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2013	Oct. 31, 2012	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
Components Of Earnings Loss Before Income Taxes [Line Items]	'	'	'	'	'	'	'	'	'	'	'
United States	'	'	'	'	'	'	'	'	$1,923	$12,033	$21,789
Foreign	'	'	'	'	'	'	'	'	-1,657	3,168	1,280
Income from continuing operations before income taxes	($1,310)	$1,883	($2,384)	$2,077	$1,915	$3,918	$2,725	$6,643	$266	$15,201	$23,069

Components_of_Income_Tax_Expen

Components of Income Tax Expense (Benefit) from Continuing Operations (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
Current:	'	'	'
Federal	$2,582	$2,833	$5,639
Foreign	1,071	1,437	686
State	603	197	1,071
Total current	4,256	4,467	7,396
Deferred:	'	'	'
Federal	-1,978	1,426	1,441
Foreign	-897	-282	-104
State	-127	104	21
Total deferred	-3,002	1,248	1,358
Total	$1,254	$5,715	$8,754

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended				3 Months Ended	12 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2014	Jan. 31, 2013	Jul. 31, 2014
				Foreign	American Taxpayer Relief Act Of Two Thousand Twelve	U K
Income tax expense (benefit) allocated to discontinued operations	'	$65,000	$221,000	'	'	'
Net operating loss carry forwards subject to expiration	'	'	'	2,700,000	'	'
Net operating loss carry forward expiration, start year	'	'	'	'2024	'	'
Income tax examination liability of Italy subsidiary	3,500,000	'	'	'	'	'
Liability for uncertain tax positions in Italy	326,000	437,000	'	'	'	'
Recognition of tax benefit	$1,254,000	$5,715,000	$8,754,000	'	($200,000)	'
United Kingdom corporation tax rate	'	'	'	'	'	21.00%
Federal income tax rate	35.00%	35.00%	35.00%	'	'	'

Deferred_Tax_Assets_and_Liabil

Deferred Tax Assets and Liabilities (Detail) (USD $)	Jul. 31, 2014	Jul. 31, 2013
In Thousands, unless otherwise specified
Current deferred tax assets:	'	'
Bad debt expense	$326	$259
Inventory	787	920
Accrued liabilities	1,545	166
Employee benefits	1,879	606
Other	102	159
Less valuation allowance	-636	'
Total current deferred tax assets	4,003	2,110
Non-current deferred tax assets	'	'
Net operating loss	839	803
Deferred compensation	616	793
Less valuation allowance	-1,090	'
Total non-current deferred tax assets	365	1,596
Current deferred tax liabilities:	'	'
Other	-128	-152
Prepaid assets	-398	-562
Total current deferred tax liabilities:	-526	-714
Non-current deferred tax liabilities:	'	'
Difference in amortization basis of intangibles	-7,129	-6,020
Difference in depreciable basis of property	-4,575	-5,965
Total non-current deferred tax liabilities	-11,704	-11,985
Net non-current deferred tax liability	($7,862)	($8,993)

Differences_Between_Actual_Tax

Differences Between Actual Tax Provision and Amounts Obtained by Applying Applicable United States Tax Rate (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
Schedule Of Income Taxes [Line Items]	'	'	'
Income taxes at the federal statutory rate	$93	$5,320	$8,074
Effect of foreign operations	329	-65	160
Change in valuation allowance	1,725	'	'
Adjustments to foreign operations	-916	'	'
State income taxes, net of federal income tax effect	269	232	717
Acquisition related cost	'	714	'
Other	-246	-486	-197
Total	$1,254	$5,715	$8,754

Intangible_Assets_Detail

Intangible Assets (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jul. 31, 2014	Jul. 31, 2013
Finite-Lived Intangible Assets [Line Items]	'	'
Number of Years Weighted Average Amortization Period	'13 years 1 month 6 days	'13 years
Original Cost	$16,421	$16,514
Accumulated Amortization	-3,052	-1,357
Foreign Currency Translation	880	'
Carrying Amount	14,249	15,157
Total intangible assets not subject to amortization	14,104	14,104
Total intangible assets, net	28,353	29,261
Creosote product registrations	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Total intangible assets not subject to amortization	5,339	5,339
Penta product registrations	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Total intangible assets not subject to amortization	8,765	8,765
Electronic chemicals-related contracts	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Number of Years Weighted Average Amortization Period	'6 years 7 months 6 days	'6 years 6 months
Original Cost	2,204	2,297
Accumulated Amortization	-559	-253
Foreign Currency Translation	79	'
Carrying Amount	1,724	2,044
Electronic chemicals-related trademarks and patents	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Number of Years Weighted Average Amortization Period	'12 years	'12 years
Original Cost	117	117
Accumulated Amortization	-67	-57
Carrying Amount	50	60
Electronic chemicals-value of product qualifications	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Number of Years Weighted Average Amortization Period	'14 years 1 month 6 days	'14 years 1 month 6 days
Original Cost	14,100	14,100
Accumulated Amortization	-2,426	-1,047
Foreign Currency Translation	801	'
Carrying Amount	$12,475	$13,053

Intangible_Assets_Parenthetica

Intangible Assets (Parenthetical) (Detail)

1 Months Ended

12 Months Ended

31-May-13

31-May-13

Jul. 31, 2014

Jul. 31, 2014

Jul. 31, 2013

Jul. 31, 2014

Jul. 31, 2013

Jul. 31, 2014

Jul. 31, 2013

Jul. 31, 2014

Jul. 31, 2014

Jul. 31, 2013

Jul. 31, 2014

Jul. 31, 2013

Jul. 31, 2014

Jul. 31, 2013

Electronic chemicals-related contracts

Electronic chemicals-value of product qualifications

Minimum

Minimum

Minimum

Minimum

Minimum

Minimum

Minimum

Maximum

Maximum

Maximum

Maximum

Maximum

Maximum

Maximum

Electronic chemicals-related contracts

Electronic chemicals-related contracts

Electronic chemicals-related trademarks and patents

Electronic chemicals-related trademarks and patents

Electronic chemicals-value of product qualifications

Electronic chemicals-value of product qualifications

Electronic chemicals-related contracts

Electronic chemicals-related contracts

Electronic chemicals-related trademarks and patents

Electronic chemicals-related trademarks and patents

Electronic chemicals-value of product qualifications

Electronic chemicals-value of product qualifications

Finite-Lived Intangible Assets [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Range of useful life

'7 years

'15 years

'5 years

'5 years

'5 years

'10 years

'10 years

'5 years

'5 years

'15 years

'8 years

'8 years

'15 years

'15 years

'15 years

'15 years

Intangible_Asset_Additional_In

Intangible Asset - Additional Information (Detail) (USD $)

12 Months Ended

1 Months Ended

12 Months Ended

1 Months Ended

12 Months Ended

Jul. 31, 2014

Jul. 31, 2013

Jul. 31, 2012

Jul. 31, 2014

Jul. 31, 2014

31-May-13

Jul. 31, 2014

Jul. 31, 2013

Jul. 31, 2014

Jul. 31, 2013

31-May-13

Jul. 31, 2014

Jul. 31, 2013

Jul. 31, 2014

Jul. 31, 2013

Minimum

Maximum

Electronic chemicals-value of product qualifications

Electronic chemicals-value of product qualifications

Electronic chemicals-value of product qualifications

Electronic chemicals-value of product qualifications

Electronic chemicals-value of product qualifications

Electronic chemicals-related contracts

Electronic chemicals-related contracts

Electronic chemicals-related contracts

Electronic chemicals-related contracts

Electronic chemicals-related contracts

Minimum

Minimum

Maximum

Maximum

Minimum

Minimum

Maximum

Maximum

Estimated useful lives of intangible assets

'

'

'

'5 years

'15 years

'15 years

'5 years

'5 years

'15 years

'15 years

'7 years

'5 years

'5 years

'8 years

'8 years

Amortization expense

$1,800,000

$573,000

$548,000

'

'

'

'

'

'

'

'

'

'

'

'

Estimated amortization expense for fiscal years 2015

1,600,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Estimated amortization expense for fiscal years 2016

1,400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Estimated amortization expense for fiscal years 2017

1,300,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Estimated amortization expense for fiscal years 2018

1,300,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Estimated amortization expense for fiscal years 2019

1,200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Acquired intangible assets

'

'

'

'

'

$12,800,000

'

'

'

'

$1,900,000

'

'

'

'

Carrying_Value_of_Goodwill_by_

Carrying Value of Goodwill by Segment (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jul. 31, 2014	Jul. 31, 2013
Goodwill [Line Items]	'	'
Carrying value, beginning balance	$10,929	$3,779
Working capital adjustment from the UPC acquisition	535	'
Goodwill resulting from the UPC acquisition	'	7,150
Finalization of purchase price allocation	880	'
Foreign currency translation adjustment	251	'
Carrying value, ending balance	12,595	10,929
Wood Treating	'	'
Goodwill [Line Items]	'	'
Carrying value, beginning balance	3,779	3,779
Working capital adjustment from the UPC acquisition	'	'
Goodwill resulting from the UPC acquisition	'	'
Finalization of purchase price allocation	'	'
Foreign currency translation adjustment	'	'
Carrying value, ending balance	3,779	3,779
Electronic Chemicals	'	'
Goodwill [Line Items]	'	'
Carrying value, beginning balance	7,150	'
Working capital adjustment from the UPC acquisition	535	'
Goodwill resulting from the UPC acquisition	'	7,150
Finalization of purchase price allocation	880	'
Foreign currency translation adjustment	251	'
Carrying value, ending balance	$8,816	$7,150

LongTerm_Obligations_Additiona

Long-Term Obligations - Additional Information (Detail) (USD $)

12 Months Ended

12 Months Ended

0 Months Ended

0 Months Ended

12 Months Ended

Jul. 31, 2014

Jul. 31, 2013

Jul. 31, 2014

Oct. 09, 2014

Oct. 09, 2014

Oct. 09, 2014

Oct. 09, 2014

Jul. 31, 2014

Jul. 31, 2013

Oct. 09, 2014

Jul. 31, 2014

Jul. 31, 2013

Revolving Loan Facility

Revolving Loan Facility

Revolving Loan Facility

Revolving Loan Facility

Revolving Loan Facility

Revolving Loan Facility

Revolving Loan Facility

Revolving Loan Facility

Note Purchase Agreement

Note Purchase Agreement

Subsequent Event

Subsequent Event

Subsequent Event

Subsequent Event

Senior Secured Debt

Senior Secured Debt

Senior Secured Debt

Senior Secured Debt

Senior Secured Debt

Maximum

Minimum

Subsequent Event

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Line Of Credit Facility, outstanding

'

'

$40,000,000

'

'

'

'

'

'

$38,000,000

'

'

Maximum amount of revolving facility

'

'

110,000,000

'

'

'

'

'

'

'

'

'

Line Of Credit Facility maximum borrowing capacity

'

'

46,600,000

'

'

'

'

'

'

'

'

'

Reduction credit capacity due to unused letters of credit

'

'

3,400,000

'

'

'

'

'

'

'

'

'

Amount available under revolving facility

'

'

35,000,000

'

44,200,000

'

'

'

'

'

'

'

Debt instrument variable rate

'

'

'

'

'

'

'

2.16%

1.69%

'

'

'

Long-term debt

60,000,000

85,000,000

'

'

'

'

'

'

'

'

20,000,000

20,000,000

Note purchase agreement interest rate

'

'

'

'

'

'

'

'

'

'

7.43%

'

Amount to be borrowed under revolving loan facility

'

'

'

'

150,000,000

'

'

'

'

'

'

'

Amount of cash available under contractual agreement with lender's approval

'

'

'

$100,000,000

'

'

'

'

'

'

'

'

Loan maturity date

'

'

'

9-Oct-19

'

'

'

'

'

'

31-Dec-14

'

Percentage of unused commitment fee on unused amount of commitments under revolving loan facility

'

'

'

'

'

0.30%

0.15%

'

'

'

'

'

Ratio of funded debt to EBITDA maximum

3.25

'

'

'

'

'

'

'

'

'

'

'

Fixed charge coverage ratio maximum

1.5

'

'

'

'

'

'

'

'

'

'

'

Current ratio

1.5

'

'

'

'

'

'

'

'

'

'

'

Ratio of funded debt to EBITDA maximum, step-up during an acquisition period with lender's consent

3.5

'

'

'

'

'

'

'

'

'

'

'

LongTerm_Debt_and_Current_Matu

Long-Term Debt and Current Maturities (Detail) (USD $)	Jul. 31, 2014	Jul. 31, 2013
In Thousands, unless otherwise specified
Debt Instrument [Line Items]	'	'
Total debt	$60,000	$85,000
Current maturities of long-term debt	'	'
Long-term debt, net of current maturities	60,000	85,000
Total debt	60,000	85,000
Senior Secured Debt | Note Purchase Agreement	'	'
Debt Instrument [Line Items]	'	'
Total debt	20,000	20,000
Total debt	20,000	20,000
Senior Secured Debt | Revolving Loan Facility	'	'
Debt Instrument [Line Items]	'	'
Total debt	40,000	65,000
Total debt	$40,000	$65,000

LongTerm_Debt_and_Current_Matu1

Long-Term Debt and Current Maturities (Parenthetical) (Detail) (Senior Secured Debt)	12 Months Ended
	Jul. 31, 2014	Jul. 31, 2013
Note Purchase Agreement	'	'
Debt Instrument [Line Items]	'	'
Loan maturity date	31-Dec-14	'
Note purchase agreement interest rate	7.43%	'
Revolving Loan Facility	'	'
Debt Instrument [Line Items]	'	'
Loan maturity date	30-Apr-18	'
Revolving Loan Facility | London Interbank Offered Rate (LIBOR)	'	'
Debt Instrument [Line Items]	'	'
Variable interest rate	2.00%	1.50%

Ratio_of_Funded_Debt_to_Ebitda

Ratio of Funded Debt to Ebitda (Detail) (Subsequent Event)	0 Months Ended
	Oct. 09, 2014
Range One	'
Debt Instrument [Line Items]	'
Margin	1.88%
Range Two	'
Debt Instrument [Line Items]	'
Margin	1.63%
Range Three	'
Debt Instrument [Line Items]	'
Margin	1.50%
Range Four	'
Debt Instrument [Line Items]	'
Margin	1.38%
Range Five	'
Debt Instrument [Line Items]	'
Margin	1.25%
Range Six	'
Debt Instrument [Line Items]	'
Margin	1.13%
Range Seven	'
Debt Instrument [Line Items]	'
Margin	1.00%

Ratio_of_Funded_Debt_to_Ebitda1

Ratio of Funded Debt to Ebitda (Parenthetical) (Detail) (Subsequent Event)	0 Months Ended
	Oct. 09, 2014
Range One | Minimum	'
Debt Instrument [Line Items]	'
Ratio of Funded Debt to EBITDA	3
Range Two | Minimum	'
Debt Instrument [Line Items]	'
Ratio of Funded Debt to EBITDA	2.75
Range Two | Maximum	'
Debt Instrument [Line Items]	'
Ratio of Funded Debt to EBITDA	3
Range Three | Minimum	'
Debt Instrument [Line Items]	'
Ratio of Funded Debt to EBITDA	2.5
Range Three | Maximum	'
Debt Instrument [Line Items]	'
Ratio of Funded Debt to EBITDA	2.75
Range Four | Minimum	'
Debt Instrument [Line Items]	'
Ratio of Funded Debt to EBITDA	2.25
Range Four | Maximum	'
Debt Instrument [Line Items]	'
Ratio of Funded Debt to EBITDA	2.5
Range Five | Minimum	'
Debt Instrument [Line Items]	'
Ratio of Funded Debt to EBITDA	2
Range Five | Maximum	'
Debt Instrument [Line Items]	'
Ratio of Funded Debt to EBITDA	2.25
Range Six | Minimum	'
Debt Instrument [Line Items]	'
Ratio of Funded Debt to EBITDA	1.5
Range Six | Maximum	'
Debt Instrument [Line Items]	'
Ratio of Funded Debt to EBITDA	2
Range Seven | Maximum	'
Debt Instrument [Line Items]	'
Ratio of Funded Debt to EBITDA	1.5

Principal_Payments_Due_Under_L

Principal Payments Due Under Long-Term Debt Agreements (Detail) (USD $)	Jul. 31, 2014	Jul. 31, 2013
In Thousands, unless otherwise specified
Debt Instrument [Line Items]	'	'
Long-term debt, net of current maturities	$60,000	$85,000
2015	'	'
2016	'	'
2017	'	'
2018	'	'
2019	'	'
Thereafter	$60,000	'

Future_Payments_Under_Certain_

Future Payments Under Certain Contractual Obligation (Detail) (USD $)	Jul. 31, 2014
In Thousands, unless otherwise specified
Contractual Obligation [Line Items]	'
Operating leases, total	$17,512
Operating leases, first year	5,333
Operating leases, second year	4,396
Operating leases, third year	2,442
Operating leases, fourth year	1,388
Operating leases, fifth year	1,027
Operating leases, thereafter	2,926
Purchase obligation, total	129,146	[1]
Purchase obligation, first year	56,087	[1]
Purchase obligation, second year	43,102	[1]
Purchase obligation, third year	27,870	[1]
Purchase obligation, fourth year	2,087	[1]
Purchase obligation, fifth year	'	[1]
Purchase obligation, thereafter	'	[1]
Contractual obligation, total	146,658
Contractual obligation, first year	61,420
Contractual obligation, second year	47,498
Contractual obligation, third year	30,312
Contractual obligation, fourth year	3,475
Contractual obligation, fifth year	1,027
Contractual obligation, thereafter	$2,926
[1]	Consists primarily of raw materials purchase contracts. These are typically not fixed price arrangements. The prices are based on the prevailing market prices.

Recovered_Sheet2

Commitments and Contingencies - Additional Information (Detail)	12 Months Ended			0 Months Ended	12 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2002	Jul. 31, 2014	Jul. 31, 2014	Jul. 31, 2014	Jul. 31, 2014
	USD ($)	USD ($)	USD ($)	Star Lake Canal Superfund Site	Foreign	Foreign	Foreign	Foreign
				USD ($)	USD ($)	EUR (€)	USD ($)	EUR (€)
					Case	Case
Commitments and Contingencies [Line Items]	'	'	'	'	'	'	'	'
Rent expenses related to operating leases	$3,800,000	$2,700,000	$2,300,000	'	'	'	'	'
FIFRA research and testing programs expenses	667,000	522,000	802,000	'	'	'	'	'
Number of cases contesting in Provincial Tax Court at a foreign subsidiary	'	'	'	'	2	2	'	'
Proposed adjustment from taxing authorities resulting additional income tax, interest and penalties	'	'	'	'	1,100,000	788,000	2,400,000	1,800,000
Foreign currency exchange rate, translation	1.339	'	'	'	'	'	'	'
Liability for uncertain tax positions in Italy	326,000	437,000	'	'	'	'	'	'
Reimbursement costs incurred by EPA	'	'	'	$500,000	'	'	'	'

Employee_Benefit_Plans_Additio

Employee Benefit Plans - Additional Information (Detail) (USD $)	12 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
Defined Contribution Plan Disclosure [Line Items]	'	'	'
Percent of contribution made under plan	4.00%	'	'
Contribution made under plan	$608,000	$457,000	$420,000
Contribution made by foreign subsidiaries under defined contribution plans	1,500,000	'	'
Benefit obligations in connection with foreign subsidiaries included in the acquisition of the UPC business	1,100,000	'	'
Liability under employee benefit arrangement	$553,000	$617,000	'
Employee benefit arrangement monthly payments start period	'2013-04	'	'
The term of general obligation	'10 years	'	'
First 3 Percent of Each Participant's Contributions	'	'	'
Defined Contribution Plan Disclosure [Line Items]	'	'	'
Defined Contribution Plan Employer Matching Contribution Percent Of Match	100.00%	'	'
Next Two Percent Contribution	'	'	'
Defined Contribution Plan Disclosure [Line Items]	'	'	'
Defined Contribution Plan Employer Matching Contribution Percent Of Match	50.00%	'	'

Basic_and_Diluted_Earnings_Per

Basic and Diluted Earnings Per Share (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2013	Oct. 31, 2012	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
Components Of Basic And Diluted Earning Per Share [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Income/(loss) from continuing operations	'	'	'	'	'	'	'	'	($988)	$9,486	$14,315
Income/(loss) from discontinued operations	'	'	'	'	'	'	'	'	'	-138	-490
Net income/(loss)	($822)	$1,226	($2,744)	$1,352	$723	$2,865	$1,618	$4,142	($988)	$9,348	$13,825
Weighted average shares outstanding - basic	'	'	'	'	'	'	'	'	11,615	11,487	11,363
Dilutive effect of options/warrants and stock awards	'	'	'	'	'	'	'	'	'	91	165
Weighted average shares outstanding - diluted	'	'	'	'	'	'	'	'	11,615	11,578	11,528
Basic earnings per share	'	'	'	'	'	'	'	'	'	'	'
Basic earnings per share from continuing operations	($0.07)	$0.11	($0.24)	$0.12	$0.06	$0.25	$0.14	$0.36	($0.09)	$0.82	$1.26
Basic earnings per share on income/(loss) from discontinued operations	'	'	'	'	'	'	'	'	'	($0.01)	($0.04)
Basic earnings per share	($0.07)	$0.11	($0.24)	$0.12	$0.06	$0.25	$0.14	$0.36	($0.09)	$0.81	$1.22
Diluted earnings per share	'	'	'	'	'	'	'	'	'	'	'
Diluted earnings per share from continuing operations	($0.07)	$0.11	($0.24)	$0.12	$0.06	$0.25	$0.14	$0.36	($0.09)	$0.82	$1.24
Diluted earnings per share on income/(loss) from discontinued operations	'	'	'	'	'	'	'	'	'	($0.01)	($0.04)
Diluted earnings per share	($0.07)	$0.11	($0.24)	$0.12	$0.06	$0.25	$0.14	$0.36	($0.09)	$0.81	$1.20

Earnings_per_Share_Additional_

Earnings per Share - Additional Information (Detail)	12 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'
Number of average shares that were not included in computation of diluted earnings per share	21,033	6,222	4,972

StockBased_Compensation_Additi

Stock-Based Compensation - Additional Information (Detail) (USD $)

3 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

0 Months Ended

Oct. 31, 2013

Jul. 31, 2014

Jul. 31, 2013

Jul. 31, 2012

Feb. 25, 2014

Feb. 27, 2012

Oct. 28, 2011

Oct. 11, 2011

Jul. 31, 2014

Jul. 31, 2013

Jul. 31, 2012

Feb. 25, 2014

Aug. 01, 2013

Jul. 31, 2014

Jul. 31, 2013

Jul. 31, 2011

Jul. 31, 2011

Jul. 31, 2014

Jul. 31, 2013

Jul. 31, 2012

Sep. 24, 2013

Sep. 24, 2013

Sep. 24, 2013

Sep. 24, 2013

Jul. 31, 2014

Jul. 31, 2014

Jul. 31, 2014

Jul. 31, 2014

Jul. 31, 2014

Jul. 31, 2014

Jul. 31, 2014

Jul. 31, 2014

Performance Shares

Performance Shares

Performance Shares

Performance Shares

Performance Shares

Performance Shares

Performance Shares

Performance Shares

Performance Shares

Outstanding Stock Option

Series 1

Series 1

Series 2

Time Based Shares

Time Based Shares

Time Based Shares

President And Chief Executive Officer

President And Chief Executive Officer

President And Chief Executive Officer

President And Chief Executive Officer

2009 long term incentive plan

2009 long term incentive plan

2009 long term incentive plan

2004 long term incentive plan

2004 long term incentive plan

2004 long term incentive plan

2004 long term incentive plan

1996 Stock Option Plan

Common Stock

Time Based Restricted Stock Awards

Performance Based Restricted Stock Awards

Maximum

Executive Officer

Maximum

Executive Officer

Executive Officer

Installment

Installment

Maximum

Maximum

Maximum

Performance Shares

Performance Shares

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock option outstanding

'

'

58,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

Maximum number of shares approved under the LTI plan

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

750,000

200,000

'

375,000

250,000

100,000

'

Shares available for future grant

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

338,273

'

'

36,174

'

'

'

'

Recognized stock based compensation cost

'

$2,231,000

$446,000

$714,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share based compensation, related tax benefits

'

825,000

168,000

266,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unrecognized compensation costs related to outstanding stock awards

'

1,902,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted average period for recognition of compensation cost

'

'

'

'

'

'

'

'

'

'

'

'

'

'2 years 1 month 6 days

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share based compensation award grants in period

'

'

'

'

192,344

500

25,500

46,916

250,944

'

72,916

'

'

'

'

'

'

79,126

[1]

'

'

'

50,000

30,000

70,000

'

'

'

'

'

'

'

'

Share based compensation award number of installments

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5

5

'

'

'

'

'

'

'

'

Share based compensation award vesting period

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'5 years

'

'

'

'

'

'

'

'

'

'

'

Share based payment recognized

1,100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Granted, options

'

'

'

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total intrinsic value of option exercised

'

952,000

1,600,000

629,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total fair value of options vested

'

0

39,000

39,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Shares outstanding, non vested

'

'

'

'

'

'

'

'

250,944

'

'

'

154,758

'

'

'

'

50,100

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Awards vested

'

'

'

'

'

30

[2]

1,380

[2]

1,666

[2]

3,076

'

3,076

[2]

'

'

'

'

'

'

29,026

[3]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Performance based stock awards forfeited

'

'

'

'

'

'

'

'

23,242

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Closing stock price

'

'

'

'

'

'

'

'

'

'

'

$14.88

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share based payment award, expiration date

'

'

'

'

'

'

'

'

31-Jul-16

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Vesting percentage of awards

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

20.00%

0.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Performance shares issued period

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'75 days

'

'75 days

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Grant Date Fair Value

'

'

'

'

'

'

'

'

$14.88

'

'

'

$17.66

'

'

'

'

$19.19

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted average grant date fair value of performance share awards forfeited

'

'

'

'

'

'

'

'

$17.54

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total fair value of shares vested

'

'

'

'

'

'

'

'

$45,000

$118,000

$297,000

'

'

'

'

'

'

$1,822,000

$542,000

$545,000

'

'

'

'

'

'

'

'

'

'

'

'

[1]

Includes number of shares granted to non-employee directors and to certain employees during fiscal year 2014. The director awards were granted for either a two or three month service period. The director awards were granted on August 27, 2013, December 17, 2013, February 25, 2014 and May 20, 2014 and vested once the service period was complete. Generally the employee awards vest on the respective employee's work anniversary dates. The Company recognizes compensation expense related to the awards over the respective service period in accordance with GAAP.

[2]

For performance shares granted before 2013, the above table represents the actual percentage vesting and shares vested as of the end of the measurement period ended July 31, 2014. For the other performance share grants identified in the above table, the information set forth is the expected vesting percentage and the shares projected to vest.

[3]

Includes 27,526 shares granted to non-employee directors indicated above and 1,500 shares granted to employees.

Stock_Option_Activity_Associat

Stock Option Activity Associated with Employee Compensation (Detail) (USD $)	12 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
Stock Options	'	'	'
Outstanding on August 1, 2013	58,000	'	'
Granted	'	'	0
Exercised	-58,000	'	'
Forfeited/Expired	'	'	'
Outstanding on July 31, 2014	'	58,000	'
Weighted Average Exercise Price	'	'	'
Outstanding on August 1, 2013	$4.03	'	'
Granted	'	'	'
Exercised	$4.03	'	'
Forfeited/Expired	'	'	'
Outstanding on July 31, 2014	'	$4.03	'

Summary_of_Performance_Based_S

Summary of Performance Based Stock Awards Granted (Detail) (Performance Shares, USD $)

0 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

0 Months Ended

Feb. 25, 2014

Feb. 27, 2012

Oct. 28, 2011

Oct. 11, 2011

Jul. 31, 2014

Jul. 31, 2012

Feb. 27, 2012

Oct. 28, 2011

Oct. 11, 2011

Jul. 31, 2014

Jul. 31, 2013

Feb. 27, 2012

Oct. 28, 2011

Oct. 11, 2011

Series Award One

Series Award One

Series Award One

Series Award One

Series Award One

Series Award Two

Series Award Two

Series Award Two

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Grant Dates

'

'

'

'

'

'

27-Feb-12

28-Oct-11

11-Oct-11

[1]

25-Feb-14

[1]

4-Dec-12

[1]

27-Feb-12

28-Oct-11

11-Oct-11

[1]

Maximum Award (Shares)

192,344

500

25,500

46,916

250,944

72,916

300

15,300

28,150

[1]

192,344

[1]

58,600

[1]

200

10,200

18,766

[1]

Grant Date Fair Value

'

'

'

'

'

'

$18.08

$15.30

$14.16

[1]

$14.88

[1]

$18.75

[1]

$18.08

$15.30

$14.16

[1]

Measurement Period Ending

'

'

'

'

'

'

31-Jul-14

31-Jul-14

31-Jul-14

[1]

31-Jul-16

[1]

31-Jul-15

[1]

31-Jul-14

31-Jul-14

31-Jul-14

[1]

Actual or Expected Percentage of Vesting

'

'

'

'

'

'

10.00%

[2]

10.00%

[2]

10.00%

[1],[2]

53.00%

[1],[2]

0.00%

[1],[2]

0.00%

[2]

0.00%

[2]

0.00%

[1],[2]

Actual Shares Vested or Shares Projected to Vest

'

30

[2]

1,380

[2]

1,666

[2]

3,076

3,076

[2]

30

[2]

1,380

[2]

1,666

[1],[2]

102,737

[1],[2]

'

'

'

'

[1]

Series 1 and Series 2 awards to J. Neal Butler were forfeited upon his termination of employment on July 10, 2013 and the table reflects that forfeiture. Shares forfeited included 59,217 shares granted in fiscal year 2013, 30,837 Series 1 and 20,558 Series 2 awards granted in fiscal year 2012, and 24,201 Series 1 and 16,134 Series 2 awards granted in fiscal year 2011.

[2]

For performance shares granted before 2013, the above table represents the actual percentage vesting and shares vested as of the end of the measurement period ended July 31, 2014. For the other performance share grants identified in the above table, the information set forth is the expected vesting percentage and the shares projected to vest.

Summary_of_Performance_Based_S1

Summary of Performance Based Stock Awards Granted (Parenthetical) (Detail) (Executive Officer)	12 Months Ended
	Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2011	Jul. 31, 2012	Jul. 31, 2011
		Series Award One	Series Award One	Series Award Two	Series Award Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'
Share based payment, forfeitures in period	59,217	30,837	24,201	20,558	16,134

Summary_of_Activity_for_TimeBa

Summary of Activity for Time-Based Stock Awards (Detail) (Time Based Shares, USD $)	12 Months Ended
	Jul. 31, 2014
Time Based Shares	'
Non-vested Shares	'
Non-vested on August 1, 2013	'
Granted	79,126	[1]
Vested	-29,026	[2]
Forfeited	'
Non-vested on July 31, 2014	50,100
Weighted-Average Grant-Date Fair Value	'
Non-vested on August 1, 2013	'
Granted	$18.67	[1]
Vested	$17.79	[2]
Forfeited	'
Non-vested on July 31, 2014	$19.19
[1]	Includes number of shares granted to non-employee directors and to certain employees during fiscal year 2014. The director awards were granted for either a two or three month service period. The director awards were granted on August 27, 2013, December 17, 2013, February 25, 2014 and May 20, 2014 and vested once the service period was complete. Generally the employee awards vest on the respective employee's work anniversary dates. The Company recognizes compensation expense related to the awards over the respective service period in accordance with GAAP.
[2]	Includes 27,526 shares granted to non-employee directors indicated above and 1,500 shares granted to employees.

Summary_of_Activity_for_TimeBa1

Summary of Activity for Time-Based Stock Awards (Parenthetical) (Detail) (Time Based Shares)	1 Months Ended	2 Months Ended	3 Months Ended		12 Months Ended
	Aug. 31, 2013	Oct. 31, 2013	Apr. 30, 2014	Jan. 31, 2014	Jul. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'
Grant Date	27-Aug-13	17-Dec-13	20-May-14	25-Feb-14	'
Time based stock awards granted	'	'	'	'	79,126	[1]
Non-Employee Directors	'	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'
Time based stock awards granted	'	'	'	'	27,526
Employee	'	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'
Time based stock awards granted	'	'	'	'	1,500
[1]	Includes number of shares granted to non-employee directors and to certain employees during fiscal year 2014. The director awards were granted for either a two or three month service period. The director awards were granted on August 27, 2013, December 17, 2013, February 25, 2014 and May 20, 2014 and vested once the service period was complete. Generally the employee awards vest on the respective employee's work anniversary dates. The Company recognizes compensation expense related to the awards over the respective service period in accordance with GAAP.

Discontinued_Operations_Additi

Discontinued Operations - Additional Information (Detail) (USD $)

12 Months Ended

0 Months Ended

Jul. 31, 2014

Jul. 31, 2013

Jul. 31, 2012

Jul. 31, 2013

Jul. 31, 2012

Jul. 31, 2013

Jul. 31, 2012

Jul. 31, 2014

Jul. 31, 2013

Jul. 31, 2012

Mar. 01, 2012

Mar. 01, 2012

Herbicide Product Line

Herbicide Product Line

Bayer Healthcare Llc

Bayer Healthcare Llc

Animal Health Segment

Animal Health Segment

Animal Health Segment

Animal Health Segment

Animal Health Segment

Maximum

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Loss from discontinued operations before income taxes

'

($203,000)

($711,000)

'

'

($82,000)

($112,000)

$0

($25,000)

($202,000)

'

'

Dismantling of related equipment and the accident cost

6,359,000

'

'

121,000

599,000

'

'

'

'

'

'

'

Post closing adjustment costs

'

'

'

'

'

57,000

'

'

'

'

'

'

Gain on sale

'

'

'

'

'

'

90,000

'

'

'

'

'

Restricted cash held in escrow related to business sale

'

'

'

'

'

'

'

'

'

'

$1,000,000

'

Period of escrow deposit release

'

'

'

'

'

'

'

'

'

'

'

'5 years

Sales_and_Income_Before_Income

Sales and Income Before Income Tax Reported in Discontinued Operations (Detail) (USD $)	12 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]	'	'	'
Income (loss) before income taxes	'	($203,000)	($711,000)
Animal Health Segment	'	'	'
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]	'	'	'
Revenue	0	57,000	5,643,000
Income (loss) before income taxes	$0	($25,000)	($202,000)

Segment_Information_Additional

Segment Information - Additional Information (Detail)	12 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
Segment Reporting Information [Line Items]	'	'	'
Number of reportable segment	2	'	'
Electronic Chemicals | Sales	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Revenue generated from single external customer	15.00%	20.00%	19.00%
Wood Treating | Sales	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Revenue generated from single external customer	13.00%	16.00%	12.00%

Segment_Information_Detail

Segment Information (Detail) (USD $)

3 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Jul. 31, 2014

Apr. 30, 2014

Jan. 31, 2014

Oct. 31, 2013

Jul. 31, 2013

Apr. 30, 2013

Jan. 31, 2013

Oct. 31, 2012

Jul. 31, 2014

Jul. 31, 2013

Jul. 31, 2012

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Net sales

$91,156

$84,437

$84,253

$93,560

$81,087

$59,929

$56,959

$65,336

$353,406

$263,311

$272,700

Total consolidated depreciation and amortization

'

'

'

'

'

'

'

'

14,117

8,295

7,018

Operating income (loss)

-415

2,914

-1,603

3,055

2,525

4,355

3,196

7,104

3,951

17,180

25,437

Operating Segments

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Net sales

'

'

'

'

'

'

'

'

353,268

262,940

272,485

Total consolidated depreciation and amortization

'

'

'

'

'

'

'

'

14,117

[1]

8,295

[1]

7,018

[1]

Operating income (loss)

'

'

'

'

'

'

'

'

22,479

[2],[3]

24,514

[2],[3]

29,014

[2],[3]

Operating Segments | Electronic Chemicals

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Net sales

'

'

'

'

'

'

'

'

253,754

165,755

159,451

Total consolidated depreciation and amortization

'

'

'

'

'

'

'

'

13,240

[1]

7,416

[1]

5,933

[1]

Operating income (loss)

'

'

'

'

'

'

'

'

14,089

[3]

13,992

[3]

13,392

[3]

Operating Segments | Wood Treating

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Net sales

'

'

'

'

'

'

'

'

99,514

97,185

113,034

Total consolidated depreciation and amortization

'

'

'

'

'

'

'

'

400

[1]

418

[1]

504

[1]

Operating income (loss)

'

'

'

'

'

'

'

'

8,390

[3]

10,522

[3]

15,622

[3]

Other

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Net sales

'

'

'

'

'

'

'

'

138

[4]

371

[4]

215

[4]

Total consolidated depreciation and amortization

'

'

'

'

'

'

'

'

$477

[1]

$461

[1]

$239

[1]

[1]

Segment depreciation excludes depreciation for restructuring and realignment.

[2]

Other corporate expense primarily represents employee stock-based compensation expenses and those expenses associated with the Company's operation as a public entity such as board compensation, audit expense, fees related to the listing of our stock and expenses incurred to pursue acquisition opportunities. The amounts presented for fiscal year 2012 include corporate overhead previously allocated to the animal health business. These amounts were not reallocated to the remaining segments.

[3]

Segment income from operations includes allocated corporate overhead expenses, but excludes restructuring and realignment charges.

[4]

Primarily reflects income in connection with the sale of the animal health business. See Note 12.

Overhead_Expenses_Allocated_to

Overhead Expenses Allocated to Segment Income (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
Segment Reporting Information [Line Items]	'	'	'
Total corporate overhead expense allocation	$13,209	$9,679	$9,760
Operating Segments | Electronic Chemicals	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total corporate overhead expense allocation	8,751	5,218	5,354
Operating Segments | Wood Treating	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total corporate overhead expense allocation	$4,458	$4,461	$4,406

Reconciliation_of_Total_Segmen

Reconciliation of Total Segment to Consolidated Amounts (Detail) (USD $)

3 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Jul. 31, 2014

Apr. 30, 2014

Jan. 31, 2014

Oct. 31, 2013

Jul. 31, 2013

Apr. 30, 2013

Jan. 31, 2013

Oct. 31, 2012

Jul. 31, 2014

Jul. 31, 2013

Jul. 31, 2012

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Total assets for discontinued operations

'

'

'

'

$467

[1]

'

'

'

'

$467

[1]

'

Other current assets

7,690

'

'

'

9,120

'

'

'

7,690

9,120

'

Other assets

9,588

'

'

'

8,413

'

'

'

9,588

8,413

'

Total assets

250,858

'

'

'

262,015

'

'

'

250,858

262,015

'

Other corporate expense

'

'

'

'

'

'

'

'

-7,652

[2]

-7,334

[2]

-3,577

[2]

Net sales

91,156

84,437

84,253

93,560

81,087

59,929

56,959

65,336

353,406

263,311

272,700

Restructuring and realignment charges

'

'

'

'

'

'

'

'

-10,876

'

'

Operating income

-415

2,914

-1,603

3,055

2,525

4,355

3,196

7,104

3,951

17,180

25,437

Interest expense, net

'

'

'

'

'

'

'

'

-2,854

-1,771

-2,099

Other expense, net

'

'

'

'

'

'

'

'

-831

-208

-269

Income from continuing operations before income taxes

-1,310

1,883

-2,384

2,077

1,915

3,918

2,725

6,643

266

15,201

23,069

Operating Segments

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Total assets

233,580

'

'

'

244,015

'

'

'

233,580

244,015

'

Net sales

'

'

'

'

'

'

'

'

353,268

262,940

272,485

Operating income

'

'

'

'

'

'

'

'

22,479

[2],[3]

24,514

[2],[3]

29,014

[2],[3]

Other

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Net sales

'

'

'

'

'

'

'

'

$138

[4]

$371

[4]

$215

[4]

[1]

Reflects deferred tax assets as of July 31, 2013.

[2]

Other corporate expense primarily represents employee stock-based compensation expenses and those expenses associated with the Company's operation as a public entity such as board compensation, audit expense, fees related to the listing of our stock and expenses incurred to pursue acquisition opportunities. The amounts presented for fiscal year 2012 include corporate overhead previously allocated to the animal health business. These amounts were not reallocated to the remaining segments.

[3]

Segment income from operations includes allocated corporate overhead expenses, but excludes restructuring and realignment charges.

[4]

Primarily reflects income in connection with the sale of the animal health business. See Note 12.

Geographic_Data_Detail

Geographic Data (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2013	Oct. 31, 2012	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
Segment Reporting Information [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Net sales	$91,156	$84,437	$84,253	$93,560	$81,087	$59,929	$56,959	$65,336	$353,406	$263,311	$272,700
Property, plant and equipment, net	92,450	'	'	'	96,688	'	'	'	92,450	96,688	'
United States	'	'	'	'	'	'	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Net sales	'	'	'	'	'	'	'	'	212,903	200,184	229,140
Property, plant and equipment, net	49,776	'	'	'	51,720	'	'	'	49,776	51,720	'
International	'	'	'	'	'	'	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Net sales	'	'	'	'	'	'	'	'	140,503	63,127	43,560
Property, plant and equipment, net	$42,674	'	'	'	$44,968	'	'	'	$42,674	$44,968	'

Restructuring_Events_Additiona

Restructuring Events - Additional Information (Detail) (USD $)	12 Months Ended	24 Months Ended
In Millions, unless otherwise specified	Jul. 31, 2014	Jul. 31, 2015	Jul. 31, 2015	Jul. 31, 2015
		Scenario, Forecast	Scenario, Forecast	Scenario, Forecast
			Minimum	Maximum
Restructuring Cost and Reserve [Line Items]	'	'	'	'
Estimated restructuring charges,excluding accelerated depreciation	'	'	$7	$9
Accelerated depreciation	$2.40	$4	'	'

Accrued_Liability_associated_w

Accrued Liability associated with Restructuring and Other Related Charges (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jul. 31, 2014
Restructuring Cost and Reserve [Line Items]	'
Charges	$3,925
Payments	-1,136
Adjustment	-64
Accrued liability at July 31, 2014	2,725
Employee costs	'
Restructuring Cost and Reserve [Line Items]	'
Charges	2,631
Payments	-698
Adjustment	-45
Accrued liability at July 31, 2014	1,888
Decommissioning and Environmental	'
Restructuring Cost and Reserve [Line Items]	'
Charges	1,260
Payments	-438
Adjustment	-12
Accrued liability at July 31, 2014	810
Other	'
Restructuring Cost and Reserve [Line Items]	'
Charges	34
Adjustment	-7
Accrued liability at July 31, 2014	$27

Subsequent_Events_Additional_I

Subsequent Events - Additional Information (Detail) (USD $)

12 Months Ended

12 Months Ended

12 Months Ended

0 Months Ended

Jul. 31, 2014

Jul. 31, 2013

Jul. 31, 2012

Jul. 31, 2014

Jul. 31, 2014

Jul. 31, 2014

Jul. 31, 2013

Jul. 31, 2014

Oct. 09, 2014

Oct. 09, 2014

Oct. 13, 2014

Oct. 13, 2014

Oct. 13, 2014

Oct. 13, 2014

Revolving Loan Facility

Revolving Loan Facility

Note Purchase Agreement

Note Purchase Agreement

Bay Point Facility

Subsequent Event

Subsequent Event

Subsequent Event

Subsequent Event

Subsequent Event

Subsequent Event

Senior Secured Debt

Senior Secured Debt

Senior Secured Debt

Revolving Loan Facility

Revolving Loan Facility

Decontamination, Decommissioning and Dismantling

Decontamination, Decommissioning and Dismantling

Accelerated Depreciation

Accelerated Depreciation

Senior Secured Debt

Minimum

Maximum

Minimum

Maximum

Subsequent Event [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Estimated restructuring charges

'

'

'

'

'

'

'

'

'

'

$2,500,000

$4,000,000

$2,500,000

$2,800,000

Asset retirement obligation

3,700,000

'

'

'

'

'

'

3,700,000

'

'

'

'

'

'

Depreciation expense

16,500,000

7,700,000

6,500,000

'

'

'

'

1,000,000

'

'

'

'

'

'

Accelerated depreciation

2,400,000

'

'

'

'

'

'

800,000

'

'

'

'

'

'

Impairment charge with respect to manufacturing equipment at bay point

2,741,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Line Of Credit Facility, available

'

'

'

'

'

'

'

'

150,000,000

'

'

'

'

'

Long-term obligations

60,000,000

85,000,000

'

'

'

20,000,000

20,000,000

'

'

'

'

'

'

'

Penalty for early repayment of debt

'

'

'

'

'

325,000

'

'

'

'

'

'

'

'

Fees and expenses related to new credit facility

'

'

'

'

693,000

'

'

'

'

'

'

'

'

'

Line Of Credit Facility, outstanding

'

'

'

$40,000,000

'

'

'

'

'

$38,000,000

'

'

'

'

Selected_Quarterly_Financial_D2

Selected Quarterly Financial Data (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2013	Oct. 31, 2012	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
Quarterly Financial Data [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Net sales	$91,156	$84,437	$84,253	$93,560	$81,087	$59,929	$56,959	$65,336	$353,406	$263,311	$272,700
Gross profit	27,977	24,765	25,190	25,567	24,328	16,333	15,721	20,088	103,499	76,470	77,065
Operating income/(loss)	-415	2,914	-1,603	3,055	2,525	4,355	3,196	7,104	3,951	17,180	25,437
Income/(loss) from continuing operations before income taxes	-1,310	1,883	-2,384	2,077	1,915	3,918	2,725	6,643	266	15,201	23,069
Net income /(loss)	($822)	$1,226	($2,744)	$1,352	$723	$2,865	$1,618	$4,142	($988)	$9,348	$13,825
Income/(loss) per share from continuing operations	'	'	'	'	'	'	'	'	'	'	'
- basic	($0.07)	$0.11	($0.24)	$0.12	$0.06	$0.25	$0.14	$0.36	($0.09)	$0.82	$1.26
- diluted	($0.07)	$0.11	($0.24)	$0.12	$0.06	$0.25	$0.14	$0.36	($0.09)	$0.82	$1.24
Net income/(loss) per share	'	'	'	'	'	'	'	'	'	'	'
- basic	($0.07)	$0.11	($0.24)	$0.12	$0.06	$0.25	$0.14	$0.36	($0.09)	$0.81	$1.22
- diluted	($0.07)	$0.11	($0.24)	$0.12	$0.06	$0.25	$0.14	$0.36	($0.09)	$0.81	$1.20

Recovered_Sheet3

Schedule II - Valuation And Qualifying Accounts (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
Allowance for Doubtful Accounts	'	'	'
Valuation and Qualifying Accounts Disclosure [Line Items]	'	'	'
Balance at beginning of period	$224,000	$16,000	$414,000
Charged to costs and expenses	108,000	208,000	'
Additions/ Deductions	-60,000	'	-398,000
Balance at end of period	272,000	224,000	16,000
Inventory Valuation and Obsolescence	'	'	'
Valuation and Qualifying Accounts Disclosure [Line Items]	'	'	'
Balance at beginning of period	180,000	493,000	333,000
Charged to costs and expenses	221,000	107,000	272,000
Additions/ Deductions	-111,000	-420,000	-112,000
Balance at end of period	290,000	180,000	493,000
Valuation Allowance on Deferred Tax Assets	'	'	'
Valuation and Qualifying Accounts Disclosure [Line Items]	'	'	'
Balance at beginning of period	'	'	'
Charged to costs and expenses	1,725,000	'	'
Additions/ Deductions	'	'	'
Balance at end of period	$1,725,000	'	'