KMG Chemicals 10-Q 9 Jun 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Apr. 30, 2014	Jun. 09, 2014
Document Information [Line Items]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Apr-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'
Trading Symbol	'KMG	'
Entity Registrant Name	'KMG CHEMICALS INC	'
Entity Central Index Key	'0001028215	'
Current Fiscal Year End Date	'--07-31	'
Entity Filer Category	'Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	11,641,733

CONDENSED_CONSOLIDATED_BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Apr. 30, 2014	Jul. 31, 2013
In Thousands, unless otherwise specified
Current assets	'	'
Cash and cash equivalents	$19,402	$13,949
Accounts receivable	'	'
Trade, net of allowances of $211 at April 30, 2014 and $224 at July 31, 2013	40,651	41,935
Other	3,832	4,210
Inventories, net	46,636	53,387
Current deferred tax assets	631	1,400
Prepaid expenses and other	3,406	3,955
Total current assets	114,558	118,836
Property, plant and equipment, net	95,175	96,688
Deferred tax assets	991	1,069
Goodwill	11,110	10,929
Intangible assets, net	28,803	29,261
Restricted cash	1,000	1,000
Other assets, net	4,419	4,232
Total assets	256,056	262,015
Current liabilities	'	'
Accounts payable	32,052	35,492
Accrued liabilities	16,540	10,351
Current maturities of long-term debt	20,000	'
Total current liabilities	68,592	45,843
Long-term debt, net of current maturities	52,000	85,000
Deferred tax liabilities	10,683	11,462
Other long-term liabilities	2,666	2,470
Total liabilities	133,941	144,775
Commitments and contingencies	'	'
Stockholders' equity	'	'
Preferred stock, $0.01 par value, 10,000,000 shares authorized, none issued	'	'
Common stock, $0.01 par value, 40,000,000 shares authorized, 11,635,636 shares issued and outstanding at April 30, 2014 and 11,522,321 shares issued and outstanding at July 31, 2013	116	115
Additional paid-in capital	28,492	26,689
Accumulated other comprehensive income (loss)	1,776	-2,504
Retained earnings	91,731	92,940
Total stockholders' equity	122,115	117,240
Total liabilities and stockholders' equity	$256,056	$262,015

CONDENSED_CONSOLIDATED_BALANCE1

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Apr. 30, 2014	Jul. 31, 2013
In Thousands, except Share data, unless otherwise specified
Allowances for accounts receivables	$211	$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	11,635,636	11,522,321
Common stock, shares outstanding	11,635,636	11,522,321

CONDENSED_CONSOLIDATED_STATEME

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (LOSS) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2014	Apr. 30, 2013
Net sales	$84,437	$59,929	$262,250	$182,224
Cost of sales	59,672	43,596	186,728	130,082
Gross profit	24,765	16,333	75,522	52,142
Distribution expenses	11,975	6,399	36,979	19,374
Selling, general and administrative expenses	8,815	5,579	29,085	18,113
Restructuring charges	1,061	'	5,092	'
Operating income	2,914	4,355	4,366	14,655
Other income (expense)	'	'	'	'
Interest expense, net	-926	-388	-2,250	-1,194
Other, net	-105	-49	-540	-175
Total other expense, net	-1,031	-437	-2,790	-1,369
Income from continuing operations before income taxes	1,883	3,918	1,576	13,286
Provision for income taxes	-657	-1,026	-1,742	-4,531
Income (loss) from continuing operations	1,226	2,892	-166	8,755
Discontinued operations	'	'	'	'
Loss from discontinued operations, before income taxes	'	-33	'	-187
Income tax benefit	'	6	'	57
Loss from discontinued operations	'	-27	'	-130
Net income (loss)	$1,226	$2,865	($166)	$8,625
Basic	'	'	'	'
Income (loss) from continuing operations	$0.11	$0.25	($0.01)	$0.76
Loss from discontinued operations	'	'	'	($0.01)
Net income (loss)	$0.11	$0.25	($0.01)	$0.75
Diluted	'	'	'	'
Income (loss) from continuing operations	$0.11	$0.25	($0.01)	$0.76
Loss from discontinued operations	'	'	'	($0.01)
Net income (loss)	$0.11	$0.25	($0.01)	$0.75
Weighted average shares outstanding	'	'	'	'
Basic	11,634	11,513	11,606	11,476
Diluted	11,673	11,580	11,606	11,574

CONDENSED_CONSOLIDATED_STATEME1

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2014	Apr. 30, 2013
Net income (loss)	$1,226	$2,865	($166)	$8,625
Other comprehensive income	'	'	'	'
Foreign currency translation income (loss)	1,776	-772	4,280	1,195
Total other comprehensive income (loss)	1,776	-772	4,280	1,195
Total comprehensive income	$3,002	$2,093	$4,114	$9,820

CONDENSED_CONSOLIDATED_STATEME2

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Apr. 30, 2014	Apr. 30, 2013
Cash flows from operating activities	'	'
Net income (loss)	($166)	$8,625
Adjustments to reconcile net income (loss) to net cash provided by operating activities	'	'
Depreciation and amortization	10,422	5,407
Non-cash restructuring charges	1,720	'
Amortization of loan costs included in interest expense	45	34
Stock-based compensation expense	1,777	455
Bad debt expense	89	78
Allowance for excess and obsolete inventory	33	-340
(Gain)/loss on disposal of property	-14	59
Loss on sale of animal health business	'	57
Deferred income taxes	751	783
Tax benefit from stock-based awards	-328	-569
Changes in operating assets and liabilities	'	'
Accounts receivable - trade	1,906	2,229
Accounts receivable - other	538	-3,339
Inventories	7,277	-3,268
Other current and noncurrent assets	389	-1,819
Accounts payable	-3,916	1,309
Accrued liabilities and other	5,383	-158
Net cash provided by operating activities	25,906	9,543
Cash flows from investing activities	'	'
Additions to property, plant and equipment	-7,133	-3,785
Disposals of property, plant and equipment	39	'
Net cash used in investing activities	-7,094	-3,785
Cash flows from financing activities	'	'
Net payments under revolving credit agreement	-13,000	-2,000
Proceeds from exercise of stock options	'	70
Tax benefit from stock-based awards	328	569
Payment of dividends	-1,043	-1,032
Net cash used in financing activities	-13,715	-2,393
Effect of exchange rate changes on cash	356	100
Net increase in cash and cash equivalents	5,453	3,465
Cash and cash equivalents at beginning of period	13,949	1,633
Cash and cash equivalents at end of period	19,402	5,098
Supplemental disclosures of cash flow information	'	'
Cash paid for interest	1,909	1,163
Cash paid for income taxes	527	5,254
Supplemental disclosure of non-cash investing activities	'	'
Purchase of property, plant and equipment through accounts payable	$637	'

Basis_of_Presentation

Basis of Presentation	9 Months Ended
	Apr. 30, 2014
Basis of Presentation	'
	1. Basis of Presentation
	The consolidated balance sheet as of July 31, 2013, which has been derived from audited consolidated financial statements, and the unaudited condensed consolidated financial statements included herein have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission for interim reporting. As permitted under those requirements, certain footnotes or other financial information that are normally required by generally accepted accounting principles in the United States of America (“GAAP”) have been condensed or omitted. The Company believes that the disclosures made are adequate to make the information not misleading and in the opinion of management reflect all adjustments, including those of a normal recurring nature, that are necessary for a fair presentation of financial position and results of operations for the interim periods presented. The results of operations for the interim periods are not necessarily indicative of results of operations to be expected for the full year. The unaudited condensed consolidated financial statements included herein should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended July 31, 2013.
	These condensed consolidated financial statements are prepared using certain estimates by management and include the accounts of KMG Chemicals, Inc. and its subsidiaries (collectively, the “Company”). All significant intercompany balances and transactions have been eliminated in consolidation.

Acquisitions

Acquisitions	9 Months Ended
	Apr. 30, 2014
Acquisitions	'
	2. Acquisitions
	On May 31, 2013, the Company completed the acquisition of the ultra pure chemicals (“UPC”) business subsidiaries of OM Group, with facilities located in the United States, the United Kingdom, France and Singapore. The purchase price was $62.6 million. The subsidiaries sell high purity and ultra purity, wet process chemicals to the semiconductor industry.
	The following table summarizes the 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		5,326
	Total liabilities assumed		16,727
	Net assets acquired	$	55,463
	The Company recognized goodwill associated with the acquisition which represented the value of the assembled workforce and expected synergies from combining operations. As of April 30, 2014, the goodwill was adjusted for the post-closing working capital adjustment of $138,000. The goodwill recognized in the Company’s consolidated balance sheets is as follows (in thousands):
	Carrying value at July 31, 2013	$	7,150
	Post-closing working capital adjustment		(138	)
	Foreign currency translation adjustment		320
	Carrying value at April 30, 2014	$	7,332

Earnings_Per_Share

Earnings Per Share	9 Months Ended
	Apr. 30, 2014
Earnings Per Share	'
	3. 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:
		Three Months Ended					Nine Months Ended
		April 30,					April 30,
		2014		2013			2014			2013
		(Amounts in thousands, except per share data)
	Income (loss) from continuing operations	$	1,226	$	2,892		$	(166	)	$	8,755
	Loss from discontinued operations		—		(27	)		—			(130	)
	Net income (loss)	$	1,226	$	2,865		$	(166	)	$	8,625
	Weighted average shares outstanding-basic		11,634		11,513			11,606			11,476
	Dilutive effect of options and stock awards		39		67			—			98
	Weighted average shares outstanding-diluted		11,673		11,580			11,606			11,574
	Basic earnings per share
	Basic earnings per share from continuing operations	$	0.11	$	0.25		$	(0.01	)	$	0.76
	Basic earnings per share on loss from discontinued operations		—		—			—			(0.01	)
	Basic earnings per share	$	0.11	$	0.25		$	(0.01	)	$	0.75
	Diluted earnings per share
	Diluted earnings per share from continuing operations	$	0.11	$	0.25		$	(0.01	)	$	0.76
	Diluted earnings per share on loss from discontinued operations		—		—			—			(0.01	)
	Diluted earnings per share	$	0.11	$	0.25		$	(0.01	)	$	0.75
	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 were no such potentially dilutive securities that were not included for the three months ended April 30, 2014. There were an average of approximately 21,000 shares of potentially dilutive securities not included in the computation of diluted earnings per share for the nine months ended April 30, 2014, and there were an average of 21,200 shares and 8,300 shares of potentially dilutive shares not included in the computation of diluted earnings per share for the three and nine months ended April 30, 2013. Potentially dilutive shares are not included in the computation of diluted weighted average shares outstanding due to a loss from continuing operations for the nine months ended April 30, 2014.

Inventories

Inventories	9 Months Ended
	Apr. 30, 2014
Inventories	'
	4. Inventories
	Inventories are summarized in the following table (in thousands):
		April 30,			July 31,
		2014			2013
	Raw materials	$	8,489		$	8,003
	Work in process		1,948			1,382
	Supplies		1,722			1,730
	Finished products		34,705			42,452
	Less: reserve for inventory obsolescence		(228	)		(180	)
	Inventories, net	$	46,636		$	53,387

Property_Plant_and_Equipment

Property, Plant and Equipment	9 Months Ended
	Apr. 30, 2014
Property, Plant and Equipment	'
	5. Property, Plant and Equipment
	Property, plant and equipment and related accumulated depreciation and amortization are summarized as follows (in thousands):
		April 30,			July 31,
		2014			2013
	Land	$	16,229		$	15,620
	Buildings and improvements		42,986			41,273
	Equipment		75,352			66,807
	Leasehold improvements		143			143
			134,710			123,843
	Less: accumulated depreciation and amortization		(47,891	)		(36,933	)
			86,819			86,910
	Construction-in-progress		8,356			9,778
	Property, plant and equipment, net	$	95,175		$	96,688

StockBased_Compensation

Stock-Based Compensation	9 Months Ended
	Apr. 30, 2014
Stock-Based Compensation	'
	6. Stock-Based Compensation
	The Company has stock-based incentive plans which are described in more detail in Note 11 to the consolidated financial statements in the Company’s Annual Report on Form 10-K for fiscal year 2013. The Company recognized stock-based compensation costs of approximately $343,000 and $158,000 for the three months and $1.8 million and $455,000 for the nine months ended April 30, 2014 and 2013, respectively. The Company also recognized the related tax benefits of $120,000 and $53,000, respectively, for the three months and $663,000 and $163,000 for the nine months ended April 30, 2014 and 2013, respectively. Stock-based compensation costs are recorded under selling, general and administrative expenses in the condensed consolidated statements of income (loss).
	As of April 30, 2014, the unrecognized compensation costs related to stock-based awards was approximately $1.9 million, which is expected to be recognized over a weighted-average period of 2.2 years.
	A summary of stock option and stock activity is presented below.
	Stock Options
	A summary of activity for the nine months ended April 30, 2014 is presented below. No options were granted in the first nine months of fiscal years 2014 or 2013:
			Shares				Weighted-
							Average
							Exercise Price
	Outstanding on August 1, 2013			58,000			$	4.03
	Granted			—				—
	Exercised			(58,000	)			4.03
	Forfeited/expired			—				—
	Outstanding on April 30, 2014			—				—
	No stock options were outstanding at April 30, 2014.
	There were 58,000 stock options exercised in the nine months ended April 30, 2014, with an intrinsic value of $952,000. There were 27,000 and 107,000 options exercised in the three and nine months ended April 30, 2013, respectively, with an intrinsic value of $423,000 and $1.6 million, respectively.
	Performance Shares
	On August 1, 2013, there were 154,758 non-vested performance shares outstanding which reflected the maximum number of shares under the awards. No performance share awards vested during the nine months ended April 30, 2014. There were a maximum of 190,694 performance share awards granted during the nine months ended April 30, 2014. As of April 30, 2014, the non-vested performance-based stock awards consisted of Series 1 and Series 2 awards granted to certain executives and employees in fiscal years 2014, 2013 and 2012, as summarized below.
	Date of Grant		Series		Maximum				Grant Date		Measurement		Expected			Shares Expected
			Award		Award				Fair Value		Period Ending		Percentage of			to Vest
					(Shares)(1)								Vesting
	Fiscal Year 2014 Awards (2)
	2/25/14		Series 1			190,694			$	14.88		7/31/16		40	%		76,278
						190,694											76,278
	Fiscal Year 2013 Awards
	12/4/12		Series 1			58,600			$	18.75		7/31/15		0	%		—
						58,600											—
	Fiscal Year 2012 Awards
	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			13,800			$	15.3		7/31/14		10	%		1,380
	10/28/11		Series 2			9,200			$	15.3		7/31/14		0	%		—
						23,000											1,380
	10/11/11		Series 1			16,658			$	14.16		7/31/14		10	%		1,666
	10/11/11		Series 2			11,105			$	14.16		7/31/14		0	%		—
						27,763											1,666
	Total					300,557											79,354
	-1	The table does not include awards of 23,242 and 12,992 in Series 1 awards (at maximum) in fiscal years 2013 and 2012, respectively, and 8,661 (at maximum) in Series 2 awards in fiscal year 2012, all of which were forfeited during the nine months ended April 30, 2014.
	-2	The percentage vesting for the 2014 performance shares award is based on the target award, which is 66.67% of the maximum award. The expected percentage of vesting is currently estimated at 60% of the target award for the fiscal year 2014 Award.
	Series 1: For the fiscal year 2014 awards, vesting is subject to performance requirements composed of certain objectives including average annual return on invested capital and annual compound growth rate in the Company’s earnings per share. The percentage of vesting for the Fiscal Year 2014 award is based on the target award, which is at 66.67% of the maximum award. For the fiscal year 2013 awards, vesting is subject to performance requirements composed of certain objectives including average annual return on invested capital and annual compound growth rate in the Company’s diluted earnings per share. For the fiscal year 2012 award, vesting for the Series 1 awards is subject to a performance requirement composed of certain earnings per share or revenue growth objectives and average annual return on invested capital measured across a three year period. These objectives are measured quarterly using the Company’s budget, actual results and long-term projections. For each of the Series 1 awards, the expected percentage of vesting is evaluated through April 30, 2014, and reflects the percentage of shares projected to vest for the respective awards at the end of their measurement periods.
	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. The achievement of performance requirements is measured quarterly using the Company’s budget, actual results and long-term projections. For fiscal year 2012 awards, the expected percentage of vesting is evaluated through April 30, 2014, and reflects the percentage of shares projected to vest for the respective awards at the end of their measurement periods.
	The weighted-average grant-date fair value of performance awards outstanding was $16.47 and $17.66 at April 30, 2014 and August 1, 2013, respectively.
	The table does not include certain performance-based awards granted to Christopher T. Fraser on February 25, 2014. Such grants to Mr. Fraser included (i) a performance-based Series 3 award for 10,000 shares of common stock (at maximum) having the same performance requirement as those of the 2014 Series 3 awards, and (ii) a performance-based Series 3 award for 4,000 shares of common stock (at maximum) having certain personal objectives as a performance requirement, and in each case such awards vest and are measured over a one year period beginning August 1, 2013 and ending July 31, 2014. As of April 30, 2014, the Series 3 award granted to Mr. Fraser is not expected to vest and the Series 3 award based on personal objectives is expected to vest at 100%.
	The weighted-average grant-date fair value of the performance-based awards granted for fiscal year 2014 was $14.88. The expected percentage of vesting and the percentage of shares projected to vest for the respective awards at the end of their measurement periods are evaluated quarterly.
	Time Based Shares
	A summary of activity for time-based stock awards for the nine months ended April 30, 2014 is presented below:
			Shares				Weighted-Average
							Grant-Date
							Fair Value
	Non-vested on August 1, 2013			—
	Granted (1)			72,868			$	18.84
	Vested(2)			(21,268	)			18.29
	Non-vested on April 30, 2014			51,600				19.06
	-1	Includes 21,600 shares granted to certain executives and employees on February 25, 2014 which generally vest over one, two or three year service periods from the grant date or commencement of their employment. Additionally, the Company granted a time-based award for 30,000 shares to Christopher T. Fraser, when he became the Company’s full-time President and CEO on September 24, 2013. These time-based shares vest in equal installments of 6,000 shares each over one, two, three, four and five years, respectively, from the date of grant. Compensation expense will be recorded over the vesting period using the straight-line method. The September 24, 2013 grant date fair value was approximately $662,000 using the Company’s closing stock price of $22.07 on the grant date.
	-2	Reflects 5,760 shares, 6,380 shares, 4,000 shares and 5,128 shares granted to non-employee directors on April 30, 2014, January 31, 2014, October 31, 2013 and August 27, 2013 respectively, for service for the three months ended April 30, 2014, the three months ended January 31, 2014, the two months ended October 31, 2013 and the three months ended August 31, 2013, respectively. The shares vest on the date of grant and the Company recognizes compensation expense related to the awards over the respective service periods in accordance with GAAP.
	Mr. Fraser was granted 50,000 shares upon becoming President and CEO. The shares vested on the date of grant on September 24, 2013, and the Company recognized compensation expense of the grant date fair value of $1.1 million based on the closing stock price on that date.
	The Company’s board of directors granted 4,900 shares and 1,000 shares of common stock to certain employees on February 25, 2014 and April 8, 2014, respectively. These shares were vested on the date of grant and related compensation expense of the grant-date fair value of approximately $90,000, based on the closing stock price at respective grant dates, was recognized during the three months ended April 30, 2014.
	The total fair value of shares vested during the nine months ended April 30, 2014 and 2013 was approximately $1.6 million and $363,000, respectively.

Intangible_Assets

Intangible Assets	9 Months Ended
	Apr. 30, 2014
Intangible Assets	'
	7. Intangible Assets
	Intangible assets are summarized as follows (in thousands):
		Number of Years		April 30, 2014
		Weighted		Original		Accumulated			Foreign		Carrying
		Average		Cost		Amortization			Currency		Amount
		Amortization							Translation
		Period							Adjustment
	Intangible assets subject to amortization: (range of useful life):
	Electronic chemicals-related contracts (5-8 years)		6.5	$	2,297	$	(577	)	$	79	$	1,799
	Electronic chemicals-related trademarks and patents (10-15 years)		12		117		(64	)		—		53
	Electronic chemicals-value of product qualifications (5-15 years)		14.1		14,100		(2,080	)		827		12,847
	Total intangible assets subject to amortization		13	$	16,514	$	(2,721	)	$	906		14,699
	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										$	28,803
		Number of Years		July 31, 2013
		Weighted		Original		Accumulated			Carrying
		Average		Cost		Amortization			Amount
		Amortization
		Period
	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
	Intangible assets subject to amortization are amortized over their estimated useful lives. Amortization expense was approximately $403,000 and $74,000 for the three month periods ended April 30, 2014 and 2013, respectively, and $1.4 million and $224,000 for the nine month periods ended April 30, 2014 and 2013, respectively.

Dividends

Dividends	9 Months Ended
	Apr. 30, 2014
Dividends	'
	8. Dividends
	Dividends of approximately $349,000 ($0.03 per share) and $345,000 ($0.03 per share) were declared and paid in the third quarter of fiscal years 2014 and 2013, respectively. Dividends of approximately $1.0 million ($0.09 per share) and $1.0 million ($0.09 per share) were declared and paid in the first nine months of fiscal years 2014 and 2013, respectively. A dividend of $0.03 per share was approved by the Company’s board of directors on May 20, 2014 to be paid on June 20, 2014 to shareholders of record on June 6, 2014.

Segment_Information

Segment Information	9 Months Ended
	Apr. 30, 2014
Segment Information	'
	9. Segment Information
	The Company has two reportable segments — electronic chemicals and wood treating chemicals.
			Three Months Ended						Nine Months Ended
			April 30,						April 30,
			2014			2013			2014			2013
			(Amounts in thousands)
	Sales
	Electronic chemicals		$	61,542		$	36,333		$	187,422		$	111,487
	Wood treating chemicals			22,851			23,525			74,710			70,408
	Total sales for reportable segments		$	84,393		$	59,858		$	262,132		$	181,895
	Depreciation and amortization
	Electronic chemicals		$	3,202		$	1,665		$	9,794		$	4,754
	Wood treating chemicals			104			102			300			314
	Other			104			136			328			339
	Total consolidated depreciation and amortization		$	3,410		$	1,903		$	10,422		$	5,407
	Segment income from operations (1)
	Electronic chemicals		$	3,175		$	2,978		$	9,508		$	10,479
	Wood treating chemicals			2,092			2,546			5,708			8,132
	Total segment income from operations		$	5,267		$	5,524		$	15,216		$	18,611
	-1	Segment income from operations includes allocated corporate overhead expenses.
	Corporate overhead expenses allocated to segment income from operations for the three and nine months ended April 30, 2014 and 2013 were as follows:
			Three Months Ended						Nine Months Ended
			April 30,						April 30,
			2014			2013			2014			2013
			(Amounts in thousands)
	Electronic chemicals		$	2,054		$	1,185		$	6,492		$	3,816
	Wood treating chemicals			1,110			1,037			3,240			3,269
	Total corporate overhead expense allocation		$	3,164		$	2,222		$	9,732		$	7,085
	A reconciliation of total segment information to consolidated amounts is as follows:
			Three Months Ended						Nine Months Ended
			April 30,						April 30,
			2014			2013			2014			2013
			(Amounts in thousands)
	Sales
	Total sales for reportable segments		$	84,393		$	59,858		$	262,132		$	181,895
	Other			44			71			118			329
	Net sales		$	84,437		$	59,929		$	262,250		$	182,224
	Segment income from operations
	Total segment income from operations		$	5,267		$	5,524		$	15,216		$	18,611
	Other corporate expense (1)			(1,292	)		(1,169	)		(5,758	)		(3,956	)
	Restructuring charges			(1,061	)		—			(5,092	)		—
	Operating income			2,914			4,355			4,366			14,655
	Interest expense, net			(926	)		(388	)		(2,250	)		(1,194	)
	Other expense, net			(105	)		(49	)		(540	)		(175	)
	Income from continuing operations before income taxes		$	1,883		$	3,918		$	1,576		$	13,286
	-1	Other corporate expense primarily represents employee stock-based compensation expenses and those public entity expenses such as board compensation, audit expense, fees related to the listing of our stock, and expenses incurred to pursue acquisition opportunities.

LongTerm_Debt

Long-Term Debt	9 Months Ended
	Apr. 30, 2014
Long-Term Debt	'
	10. Long-Term Debt
	The Company’s debt consisted of the following (in thousands):
		April 30,			July 31,
		2014			2013
		(Amounts in thousands)
	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 2.00% at April 30, 2014 and July 31, 2013		52,000			65,000
	Total debt		72,000			85,000
	Current maturities of long-term debt		20,000			—
	Long-term debt, net of current maturities	$	52,000		$	85,000
	To finance the acquisition of the electronic chemicals business in December 2007, the Company entered into an amended and restated credit agreement and a note purchase agreement. The amended and restated credit agreement is now with Wells Fargo Bank, National Association, and with Bank of America, N.A. The note purchase agreement is now with The Prudential Insurance Company of America and Pruco Life Insurance Company.
	Initially, the amended and restated credit agreement included a revolving loan facility and a term loan facility. The term loan was paid off in fiscal year 2012, and that aspect of the facility has been removed. The Company amended these facilities several times, most recently in April and in May 2013 to increase the amount that may be borrowed under the revolving loan up to $110.0 million, to include an accordion feature that allows for an additional revolving loan increase of up to $25.0 million from current or additional lenders willing to participate, to extend the maturity date of the revolving loan facility to April 30, 2018, and to include a mandatory reduction in revolving loan commitment of $10.0 million each year from September 30, 2014 to September 30, 2017 totaling $40.0 million. The matrix for the calculation of interest payable on the revolving loan facility and the method for the calculation of the fixed charge coverage ratio were also revised.
	The revolving loan bears interest at a varying rate of LIBOR plus a margin based on our funded debt to earnings before interest, taxes, depreciation and amortization (“EBITDA”).
	Ratio of Funded Debt to EBITDA	Margin
	Equal to or greater than 2.5 to 1.0		2.25	%
	Equal to or greater than 2.0 to 1.0, but less than 2.5 to 1.0		2	%
	Equal to or greater than 1.5 to 1.0, but less than 2.0 to 1.0		1.75	%
	Less than 1.5 to 1.0		1.5	%
	Advances outstanding under the revolving loan bear interest at 2.15% and 1.69% as of April 30, 2014 and July 31, 2013, respectively. The amount outstanding on the revolving loan at April 30, 2014 was $52.0 million, and an additional $3.5 million is reserved for outstanding letters of credit. The amount that may be borrowed under the revolving facility is limited by a covenant for funded debt to pro-forma earnings before interest, taxes and depreciation, and at April 30, 2014 that limitation restricts the Company’s borrowing capacity to $19.9 million.
	The note purchase agreement is for $20.0 million. Advances under the note purchase agreement mature on December 31, 2014, and bear interest at 7.43% per annum. Principal is payable at maturity. At April 30, 2014, $20.0 million was outstanding under the note purchase agreement.
	Loans under the amended and restated credit agreement and the note purchase agreement are secured by the Company’s assets, including inventory, accounts receivable, equipment, intangible assets, and real property. The credit facility and the note purchase agreement have restrictive covenants, including that the Company must maintain a fixed charge coverage ratio of 1.5 to 1.0 or greater, a ratio of funded debt to earnings before interest, taxes and depreciation (as adjusted for extraordinary items, with lender consent) of 3.0 to 1.0 or below, and a current ratio of at least 1.5 to 1.0.

Income_Taxes

Income Taxes	9 Months Ended
	Apr. 30, 2014
Income Taxes	'
	11. Income Taxes
	Income tax expense for the interim periods was computed using the effective tax rate based on the application of an estimated annual effective income tax rate applied to year-to-date income before income tax expense. In determining the estimated annual effective income tax rate, we analyze various factors, including forecasts of projected annual earnings and the ability to use tax credits and net operating loss carry forwards. The overall effective income tax rate for the three and nine month periods ended April 30, 2014 is 34.9% and 110.5%, respectively, primarily due to the valuation allowances recorded during the second quarter of fiscal year 2014 against the Company’s current and prior period operating losses for its Italian subsidiary, as a result of the restructuring of those operations. Excluding the Italian results, the estimated annual effective tax rate on ordinary income is 31.3% and 32.0% for the three and nine month periods ended April 30, 2014, respectively. For the three and nine month periods ended April 30, 2013, the overall effective rate was 26.2% and 34.1%. In general, differences between the effective tax rates and the rate of 35.0%, excluding for the effect of restructuring charges and operational results in Italy, are primarily due to foreign and state income taxes, and the distribution of income between the U.S. and foreign operations. In addition, the Company recognized $190,000 of discrete items benefits in the three months ended April 30, 2014.

Litigation_and_Other_Contingen

Litigation and Other Contingencies	9 Months Ended
	Apr. 30, 2014
Litigation and Other Contingencies	'
	12. 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.
	A lawsuit was filed against the Company’s wholly-owned subsidiary, KMG de Mexico, relating to the title to the land on which its facility in Matamoros is located. The plaintiffs claim that their title to the land is superior to the person from whom our subsidiary bought the land. The plaintiffs are seeking to have our subsidiary’s purchase overturned, and to recover the land and certain improvements or their value. The lawsuit was initially filed in 1998 in Matamoros, Mexico under Adolfo Cazares Rosas, et al vs. KMG de Mexico and Guillermo Villarreal. In January 2008, the case was sent by the appeals court back to the lower court to obtain additional factual information, and on April 20, 2009 the plaintiffs were required to re-file the case in the First Civil Court in Matamoros, Tamaulipas, Mexico as Adolfo Cazares, Luis Escudero and Juan Cue vs. KMG de Mexico and Guillermo Villarreal. In June 2011 the lower court ruled against KMG de Mexico, and held that the plaintiffs had superior title to the land, but that verdict was overturned on appeal in May 2012, and the case will be returned to the trial court for further action. The Company intends to continue to vigorously defend KMG de Mexico.
	The Company’s subsidiary in Italy has filed suit in the Provincial Tax Court in Milan, Italy to contest assessments by the taxing authority in Italy pertaining to 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 April 30, 2014 (at an exchange rate of 1.36 $/€). The Company recorded a liability for an uncertain tax position for items in the amount of $437,000. The Company intends to vigorously pursue its position before the court, but the ultimate outcome of this litigation is subject to uncertainty.
	The Company’s subsidiary in Italy has filed suit in the Provincial Court in Milan, Italy to contest the assessment of additional registration tax against the Company’s subsidiary in Italy based on an increased valuation of assets purchased from Air Products and Chemicals, Inc. in December 2007. The amount of the assessment, including interest and penalties through April 30, 2014, is €784,000 (or approximately $1.1 million, at an exchange rate of 1.36 $/€). The ultimate outcome of this assessment is subject to uncertainty.
	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.

Restructuring_Events

Restructuring Events	9 Months Ended
	Apr. 30, 2014
Restructuring Events	'
	13. 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. 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 April 30, 2014, the accrued liability associated with restructuring and other related charges consisted of the following:
		Employee Costs			Decommissioning		Non-Cash		Other			Total
					and Environmental		Accelerated
							Depreciation
	Charges	$	2,629		$	710	$	1,719	$	34		$	5,092
	Payments		(273	)		—		—		—			(273	)
	Adjustment		30			5		22		(6	)		51
	Accrued liability at April 30, 2014		2,386			715		1,741		28			4,870

Acquisitions_Tables

Acquisitions (Tables)	9 Months Ended
	Apr. 30, 2014
Summary of Acquired Assets and Assumed Liabilities and Preliminary Acquisition Accounting for Fair Value of Assets Recognized	'
	The following table summarizes the 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		5,326
	Total liabilities assumed		16,727
	Net assets acquired	$	55,463
Goodwill Recognized	'
	The goodwill recognized in the Company’s consolidated balance sheets is as follows (in thousands):
	Carrying value at July 31, 2013	$	7,150
	Post-closing working capital adjustment		(138	)
	Foreign currency translation adjustment		320
	Carrying value at April 30, 2014	$	7,332

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	9 Months Ended
	Apr. 30, 2014
Basic and Diluted Earnings Per Share	'
	The following table presents information necessary to calculate basic and diluted earnings per share for periods indicated:
		Three Months Ended					Nine Months Ended
		April 30,					April 30,
		2014		2013			2014			2013
		(Amounts in thousands, except per share data)
	Income (loss) from continuing operations	$	1,226	$	2,892		$	(166	)	$	8,755
	Loss from discontinued operations		—		(27	)		—			(130	)
	Net income (loss)	$	1,226	$	2,865		$	(166	)	$	8,625
	Weighted average shares outstanding-basic		11,634		11,513			11,606			11,476
	Dilutive effect of options and stock awards		39		67			—			98
	Weighted average shares outstanding-diluted		11,673		11,580			11,606			11,574
	Basic earnings per share
	Basic earnings per share from continuing operations	$	0.11	$	0.25		$	(0.01	)	$	0.76
	Basic earnings per share on loss from discontinued operations		—		—			—			(0.01	)
	Basic earnings per share	$	0.11	$	0.25		$	(0.01	)	$	0.75
	Diluted earnings per share
	Diluted earnings per share from continuing operations	$	0.11	$	0.25		$	(0.01	)	$	0.76
	Diluted earnings per share on loss from discontinued operations		—		—			—			(0.01	)
	Diluted earnings per share	$	0.11	$	0.25		$	(0.01	)	$	0.75

Inventories_Tables

Inventories (Tables)	9 Months Ended
	Apr. 30, 2014
Inventories	'
	Inventories are summarized in the following table (in thousands):
		April 30,			July 31,
		2014			2013
	Raw materials	$	8,489		$	8,003
	Work in process		1,948			1,382
	Supplies		1,722			1,730
	Finished products		34,705			42,452
	Less: reserve for inventory obsolescence		(228	)		(180	)
	Inventories, net	$	46,636		$	53,387

Property_Plant_and_Equipment_T

Property, Plant and Equipment (Tables)	9 Months Ended
	Apr. 30, 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 (in thousands):
		April 30,			July 31,
		2014			2013
	Land	$	16,229		$	15,620
	Buildings and improvements		42,986			41,273
	Equipment		75,352			66,807
	Leasehold improvements		143			143
			134,710			123,843
	Less: accumulated depreciation and amortization		(47,891	)		(36,933	)
			86,819			86,910
	Construction-in-progress		8,356			9,778
	Property, plant and equipment, net	$	95,175		$	96,688

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	9 Months Ended
	Apr. 30, 2014
Stock Option Activity Associated with Employee Compensation	'
	A summary of activity for the nine months ended April 30, 2014 is presented below. No options were granted in the first nine months of fiscal years 2014 or 2013:
			Shares				Weighted-
							Average
							Exercise Price
	Outstanding on August 1, 2013			58,000			$	4.03
	Granted			—				—
	Exercised			(58,000	)			4.03
	Forfeited/expired			—				—
	Outstanding on April 30, 2014			—				—
Summary of Performance Based Stock Awards Granted	'
	As of April 30, 2014, the non-vested performance-based stock awards consisted of Series 1 and Series 2 awards granted to certain executives and employees in fiscal years 2014, 2013 and 2012, as summarized below.
	Date of Grant		Series		Maximum				Grant Date		Measurement		Expected			Shares Expected
			Award		Award				Fair Value		Period Ending		Percentage of			to Vest
					(Shares)(1)								Vesting
	Fiscal Year 2014 Awards (2)
	2/25/14		Series 1			190,694			$	14.88		7/31/16		40	%		76,278
						190,694											76,278
	Fiscal Year 2013 Awards
	12/4/12		Series 1			58,600			$	18.75		7/31/15		0	%		—
						58,600											—
	Fiscal Year 2012 Awards
	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			13,800			$	15.3		7/31/14		10	%		1,380
	10/28/11		Series 2			9,200			$	15.3		7/31/14		0	%		—
						23,000											1,380
	10/11/11		Series 1			16,658			$	14.16		7/31/14		10	%		1,666
	10/11/11		Series 2			11,105			$	14.16		7/31/14		0	%		—
						27,763											1,666
	Total					300,557											79,354
	-1	The table does not include awards of 23,242 and 12,992 in Series 1 awards (at maximum) in fiscal years 2013 and 2012, respectively, and 8,661 (at maximum) in Series 2 awards in fiscal year 2012, all of which were forfeited during the nine months ended April 30, 2014.
	-2	The percentage vesting for the 2014 performance shares award is based on the target award, which is 66.67% of the maximum award. The expected percentage of vesting is currently estimated at 60% of the target award for the fiscal year 2014 Award.
Summary of Activity for Time-Based Stock Awards	'
	A summary of activity for time-based stock awards for the nine months ended April 30, 2014 is presented below:
	A summary of activity for time-based stock awards for the nine months ended April 30, 2014 is presented below:
			Shares				Weighted-Average
							Grant-Date
							Fair Value
	Non-vested on August 1, 2013			—
	Granted (1)			72,868			$	18.84
	Vested(2)			(21,268	)			18.29
	Non-vested on April 30, 2014			51,600				19.06
	-1	Includes 21,600 shares granted to certain executives and employees on February 25, 2014 which generally vest over one, two or three year service periods from the grant date or commencement of their employment. Additionally, the Company granted a time-based award for 30,000 shares to Christopher T. Fraser, when he became the Company’s full-time President and CEO on September 24, 2013. These time-based shares vest in equal installments of 6,000 shares each over one, two, three, four and five years, respectively, from the date of grant. Compensation expense will be recorded over the vesting period using the straight-line method. The September 24, 2013 grant date fair value was approximately $662,000 using the Company’s closing stock price of $22.07 on the grant date.
	-2	Reflects 5,760 shares, 6,380 shares, 4,000 shares and 5,128 shares granted to non-employee directors on April 30, 2014, January 31, 2014, October 31, 2013 and August 27, 2013 respectively, for service for the three months ended April 30, 2014, the three months ended January 31, 2014, the two months ended October 31, 2013 and the three months ended August 31, 2013, respectively. The shares vest on the date of grant and the Company recognizes compensation expense related to the awards over the respective service periods in accordance with GAAP.

Intangible_Assets_Tables

Intangible Assets (Tables)	9 Months Ended
	Apr. 30, 2014
Intangible Assets	'
	Intangible assets are summarized as follows (in thousands):
		Number of Years		April 30, 2014
		Weighted		Original		Accumulated			Foreign		Carrying
		Average		Cost		Amortization			Currency		Amount
		Amortization							Translation
		Period							Adjustment
	Intangible assets subject to amortization: (range of useful life):
	Electronic chemicals-related contracts (5-8 years)		6.5	$	2,297	$	(577	)	$	79	$	1,799
	Electronic chemicals-related trademarks and patents (10-15 years)		12		117		(64	)		—		53
	Electronic chemicals-value of product qualifications (5-15 years)		14.1		14,100		(2,080	)		827		12,847
	Total intangible assets subject to amortization		13	$	16,514	$	(2,721	)	$	906		14,699
	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										$	28,803
		Number of Years		July 31, 2013
		Weighted		Original		Accumulated			Carrying
		Average		Cost		Amortization			Amount
		Amortization
		Period
	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

Segment_Information_Tables

Segment Information (Tables)	9 Months Ended
	Apr. 30, 2014
Segment Information	'
	The Company has two reportable segments — electronic chemicals and wood treating chemicals.
			Three Months Ended						Nine Months Ended
			April 30,						April 30,
			2014			2013			2014			2013
			(Amounts in thousands)
	Sales
	Electronic chemicals		$	61,542		$	36,333		$	187,422		$	111,487
	Wood treating chemicals			22,851			23,525			74,710			70,408
	Total sales for reportable segments		$	84,393		$	59,858		$	262,132		$	181,895
	Depreciation and amortization
	Electronic chemicals		$	3,202		$	1,665		$	9,794		$	4,754
	Wood treating chemicals			104			102			300			314
	Other			104			136			328			339
	Total consolidated depreciation and amortization		$	3,410		$	1,903		$	10,422		$	5,407
	Segment income from operations (1)
	Electronic chemicals		$	3,175		$	2,978		$	9,508		$	10,479
	Wood treating chemicals			2,092			2,546			5,708			8,132
	Total segment income from operations		$	5,267		$	5,524		$	15,216		$	18,611
	-1	Segment income from operations includes allocated corporate overhead expenses.
Overhead Expenses Allocated to Segment Income	'
	Corporate overhead expenses allocated to segment income from operations for the three and nine months ended April 30, 2014 and 2013 were as follows:
			Three Months Ended						Nine Months Ended
			April 30,						April 30,
			2014			2013			2014			2013
			(Amounts in thousands)
	Electronic chemicals		$	2,054		$	1,185		$	6,492		$	3,816
	Wood treating chemicals			1,110			1,037			3,240			3,269
	Total corporate overhead expense allocation		$	3,164		$	2,222		$	9,732		$	7,085
Reconciliation of Total Segment to Consolidated Amounts	'
	A reconciliation of total segment information to consolidated amounts is as follows:
			Three Months Ended						Nine Months Ended
			April 30,						April 30,
			2014			2013			2014			2013
			(Amounts in thousands)
	Sales
	Total sales for reportable segments		$	84,393		$	59,858		$	262,132		$	181,895
	Other			44			71			118			329
	Net sales		$	84,437		$	59,929		$	262,250		$	182,224
	Segment income from operations
	Total segment income from operations		$	5,267		$	5,524		$	15,216		$	18,611
	Other corporate expense (1)			(1,292	)		(1,169	)		(5,758	)		(3,956	)
	Restructuring charges			(1,061	)		—			(5,092	)		—
	Operating income			2,914			4,355			4,366			14,655
	Interest expense, net			(926	)		(388	)		(2,250	)		(1,194	)
	Other expense, net			(105	)		(49	)		(540	)		(175	)
	Income from continuing operations before income taxes		$	1,883		$	3,918		$	1,576		$	13,286
	-1	Other corporate expense primarily represents employee stock-based compensation expenses and those public entity expenses such as board compensation, audit expense, fees related to the listing of our stock, and expenses incurred to pursue acquisition opportunities.

LongTerm_Debt_Tables

Long-Term Debt (Tables)	9 Months Ended
	Apr. 30, 2014
Debt	'
	The Company’s debt consisted of the following (in thousands):
		April 30,			July 31,
		2014			2013
		(Amounts in thousands)
	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 2.00% at April 30, 2014 and July 31, 2013		52,000			65,000
	Total debt		72,000			85,000
	Current maturities of long-term debt		20,000			—
	Long-term debt, net of current maturities	$	52,000		$	85,000
Ratio of Funded Debt to EBITDA	'
	The revolving loan bears interest at a varying rate of LIBOR plus a margin based on our funded debt to earnings before interest, taxes, depreciation and amortization (“EBITDA”).
	Ratio of Funded Debt to EBITDA	Margin
	Equal to or greater than 2.5 to 1.0		2.25	%
	Equal to or greater than 2.0 to 1.0, but less than 2.5 to 1.0		2	%
	Equal to or greater than 1.5 to 1.0, but less than 2.0 to 1.0		1.75	%
	Less than 1.5 to 1.0		1.5	%

Restructuring_Events_Tables

Restructuring Events (Tables)	9 Months Ended
	Apr. 30, 2014
Accrued Liability associated with Restructuring and Other Related Charges	'
	At April 30, 2014, the accrued liability associated with restructuring and other related charges consisted of the following:
		Employee Costs			Decommissioning		Non-Cash		Other			Total
					and Environmental		Accelerated
							Depreciation
	Charges	$	2,629		$	710	$	1,719	$	34		$	5,092
	Payments		(273	)		—		—		—			(273	)
	Adjustment		30			5		22		(6	)		51
	Accrued liability at April 30, 2014		2,386			715		1,741		28			4,870

Acquisitions_Additional_Inform

Acquisitions - Additional Information (Detail) (Om Group Incorporation, USD $)	0 Months Ended	9 Months Ended
	31-May-13	Apr. 30, 2014
Om Group Incorporation	'	'
Business Acquisition [Line Items]	'	'
Business acquisition, purchase price	$62,600,000	'
Post-closing working capital adjustment	'	($138,000)

Summary_of_Acquired_Assets_and

Summary of Acquired Assets and Assumed Liabilities and Preliminary Acquisition Accounting for Fair Value of Assets Recognized (Detail) (USD $)	Apr. 30, 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:	'
Intangible assets	14,854
Total assets acquired	72,190
Current liabilities	11,401
Other long-term liabilities	5,326
Total liabilities assumed	16,727
Net assets acquired	55,463
Value of product qualifications	'
Intangible assets:	'
Intangible assets	12,800
Non-compete agreement	'
Intangible assets:	'
Intangible assets	1,900
Transition services	'
Intangible assets:	'
Intangible assets	$154

Goodwill_Recognized_Detail

Goodwill Recognized (Detail) (USD $)	Apr. 30, 2014	Jul. 31, 2013	Apr. 30, 2014
			Om Group Incorporation
Goodwill [Line Items]	'	'	'
Carrying value at July 31, 2013	$11,110,000	$10,929,000	$7,150,000
Post-closing working capital adjustment	'	'	-138,000
Foreign currency translation adjustment	'	'	320,000
Carrying value at April 30, 2014	$11,110,000	$10,929,000	$7,332,000

Basic_and_Diluted_Earnings_Per

Basic and Diluted Earnings Per Share (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2014	Apr. 30, 2013
Components Of Basic And Diluted Earning Per Share [Line Items]	'	'	'	'
Income (loss) from continuing operations	$1,226	$2,892	($166)	$8,755
Loss from discontinued operations	'	-27	'	-130
Net income (loss)	$1,226	$2,865	($166)	$8,625
Weighted average shares outstanding-basic	11,634	11,513	11,606	11,476
Dilutive effect of options and stock awards	39	67	'	98
Weighted average shares outstanding-diluted	11,673	11,580	11,606	11,574
Basic earnings per share	'	'	'	'
Basic earnings per share from continuing operations	$0.11	$0.25	($0.01)	$0.76
Basic earnings per share on loss from discontinued operations	'	'	'	($0.01)
Basic earnings per share	$0.11	$0.25	($0.01)	$0.75
Diluted earnings per share	'	'	'	'
Diluted earnings per share from continuing operations	$0.11	$0.25	($0.01)	$0.76
Diluted earnings per share on loss from discontinued operations	'	'	'	($0.01)
Diluted earnings per share	$0.11	$0.25	($0.01)	$0.75

Earnings_per_Share_Additional_

Earnings per Share - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2014	Apr. 30, 2013
Number of shares potentially dilutive securities not included in the computation of diluted earnings per share	0	21,200	21,000	8,300

Inventories_Detail

Inventories (Detail) (USD $)	Apr. 30, 2014	Jul. 31, 2013
In Thousands, unless otherwise specified
Inventory [Line Items]	'	'
Raw materials	$8,489	$8,003
Work in process	1,948	1,382
Supplies	1,722	1,730
Finished products	34,705	42,452
Less: reserve for inventory obsolescence	-228	-180
Inventories, net	$46,636	$53,387

Property_Plant_and_Equipment_a

Property, Plant, and Equipment and Related Accumulated Depreciation and Amortization (Detail) (USD $)	Apr. 30, 2014	Jul. 31, 2013
In Thousands, unless otherwise specified
Property, Plant and Equipment [Line Items]	'	'
Property, plant and equipment, gross	$134,710	$123,843
Less: accumulated depreciation and amortization	-47,891	-36,933
Property Plant And Equipment Excluding Construction In Progress, Total	86,819	86,910
Construction-in-progress	8,356	9,778
Property, plant and equipment, net	95,175	96,688
Land	'	'
Property, Plant and Equipment [Line Items]	'	'
Property, plant and equipment, gross	16,229	15,620
Buildings and improvements	'	'
Property, Plant and Equipment [Line Items]	'	'
Property, plant and equipment, gross	42,986	41,273
Equipment	'	'
Property, Plant and Equipment [Line Items]	'	'
Property, plant and equipment, gross	75,352	66,807
Leasehold improvements	'	'
Property, Plant and Equipment [Line Items]	'	'
Property, plant and equipment, gross	$143	$143

StockBased_Compensation_Additi

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

3 Months Ended

9 Months Ended

0 Months Ended

3 Months Ended

9 Months Ended

31 Months Ended

0 Months Ended

3 Months Ended

0 Months Ended

Apr. 30, 2014

Apr. 30, 2013

Apr. 30, 2014

Apr. 30, 2013

Feb. 25, 2014

Feb. 25, 2014

Dec. 04, 2012

Feb. 27, 2012

Oct. 28, 2011

Oct. 11, 2011

Apr. 30, 2014

Apr. 30, 2014

Jul. 31, 2013

Sep. 24, 2013

Sep. 24, 2013

Feb. 25, 2014

Feb. 25, 2014

Sep. 24, 2013

Sep. 24, 2013

Apr. 30, 2014

Apr. 08, 2014

Feb. 25, 2014

Performance Shares

Performance Shares

Performance Shares

Performance Shares

Performance Shares

Performance Shares

Performance Shares

Performance Shares

Performance Shares

Time Based Awards

President And Chief Executive Officer

President And Chief Executive Officer

President And Chief Executive Officer

President And Chief Executive Officer

President And Chief Executive Officer

Certain Employees

Certain Employees

Certain Employees

Performance Shares

Performance Shares

Common Stock

Time Based Awards

Time Based Awards

Time Based Awards

Series Award Three

Series Award Three

Same performance requirement as of 2014 Series 3 awards

Personal objectives as a performance requirement

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

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Recognized stock based compensation cost

$343,000

$158,000

$1,777,000

$455,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share based compensation, related tax benefits

120,000

53,000

663,000

163,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unrecognized compensation costs related to outstanding stock awards

1,900,000

'

1,900,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted average period for recognition of compensation cost

'

'

'2 years 2 months 12 days

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of options exercised

'

27,000

58,000

107,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total intrinsic value of option exercised

'

423,000

952,000

1,600,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Performance shares outstanding, non vested

'

'

'

'

'

'

'

'

'

'

154,758

154,758

'

'

'

'

'

'

'

'

'

'

Maximum Award (Shares)

'

'

'

'

'

190,694

[1],[2]

58,600

[1]

500

[1]

23,000

[1]

27,763

[1]

190,694

300,557

[1]

'

'

'

10,000

4,000

50,000

30,000

'

1,000

4,900

Target award, as percentage of maximum award

'

'

'

'

'

'

'

'

'

'

66.67%

'

'

'

'

'

'

'

'

'

'

'

Weighted average grant date fair value

'

'

'

'

'

'

'

'

'

'

$16.47

$16.47

$17.66

'

'

'

'

'

'

'

'

'

Share based compensation award measurement beginning Date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1-Aug-13

1-Aug-13

'

'

'

'

'

Share based compensation award measurement ending Date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

31-Jul-14

31-Jul-14

'

'

'

'

'

Share based compensation award measurement period

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'1 year

'1 year

'

'

'

'

'

Vesting percentage of awards

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

100.00%

'

'

'

'

'

Grant Date Fair Value

'

'

'

'

$14.88

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Grant date fair value amount

'

'

'

'

'

'

'

'

'

'

'

'

'

662,000

1,100,000

'

'

'

'

90,000

'

'

Total fair value of shares vested

'

'

$1,600,000

$363,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

[1]

The table does not include awards of 23,242 and 12,992 in Series 1 awards (at maximum) in fiscal years 2013 and 2012, respectively, and 8,661 (at maximum) in Series 2 awards in fiscal year 2012, all of which were forfeited during the nine months ended April 30, 2014.

[2]

The percentage vesting for the 2014 performance shares award is based on the target award, which is 66.67% of the maximum award. The expected percentage of vesting is currently estimated at 60% of the target award for the fiscal year 2014 Award.

Stock_Option_Activity_Associat

Stock Option Activity Associated with Employee Compensation (Detail) (USD $)	3 Months Ended	9 Months Ended
	Apr. 30, 2013	Apr. 30, 2014	Apr. 30, 2013
Shares	'	'	'
Outstanding on August 1, 2013	'	58,000	'
Granted	'	'	'
Exercised	-27,000	-58,000	-107,000
Forfeited/expired	'	'	'
Weighted Average Exercise Price	'	'	'
Outstanding on August 1, 2013	'	$4.03	'
Granted	'	'	'
Exercised	'	$4.03	'
Forfeited/expired	'	'	'

Summary_of_Performance_Based_S

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

0 Months Ended

3 Months Ended

9 Months Ended

31 Months Ended

Feb. 25, 2014

Feb. 25, 2014

Dec. 04, 2012

Feb. 27, 2012

Oct. 28, 2011

Oct. 11, 2011

Apr. 30, 2014

Apr. 30, 2014

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

'

'

'

'

'

'

'

'

Maximum Award (Shares)

'

190,694

[1],[2]

58,600

[2]

500

[2]

23,000

[2]

27,763

[2]

190,694

300,557

[2]

Grant Date Fair Value

$14.88

'

'

'

'

'

'

'

Actual Shares Vested or Shares Projected to Vest

'

76,278

[1]

'

30

1,380

1,666

'

79,354

Series Award One

'

'

'

'

'

'

'

'

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

'

'

'

'

'

'

'

'

Grant Dates

'

25-Feb-14

[1]

4-Dec-12

27-Feb-12

28-Oct-11

11-Oct-11

'

'

Maximum Award (Shares)

'

190,694

[1],[2]

58,600

[2]

300

[2]

13,800

[2]

16,658

[2]

'

'

Grant Date Fair Value

'

14.88

[1]

18.75

18.08

15.3

14.16

'

'

Measurement Period Ending

31-Jul-16

[1]

31-Jul-16

[1]

31-Jul-15

31-Jul-14

31-Jul-14

31-Jul-14

'

'

Actual or Expected Percentage of Vesting

'

40.00%

[1]

0.00%

10.00%

10.00%

10.00%

'

'

Actual Shares Vested or Shares Projected to Vest

'

76,278

[1]

'

30

1,380

1,666

'

'

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

'

'

Maximum Award (Shares)

'

'

'

200

[2]

9,200

[2]

11,105

[2]

'

'

Grant Date Fair Value

'

'

'

18.08

15.3

14.16

'

'

Measurement Period Ending

'

'

'

31-Jul-14

31-Jul-14

31-Jul-14

'

'

Actual or Expected Percentage of Vesting

'

'

'

0.00%

0.00%

0.00%

'

'

[1]

The percentage vesting for the 2014 performance shares award is based on the target award, which is 66.67% of the maximum award. The expected percentage of vesting is currently estimated at 60% of the target award for the fiscal year 2014 Award.

[2]

The table does not include awards of 23,242 and 12,992 in Series 1 awards (at maximum) in fiscal years 2013 and 2012, respectively, and 8,661 (at maximum) in Series 2 awards in fiscal year 2012, all of which were forfeited during the nine months ended April 30, 2014.

Summary_of_Performance_Based_S1

Summary of Performance Based Stock Awards Granted (Parenthetical) (Detail)

3 Months Ended

9 Months Ended

31 Months Ended

3 Months Ended

12 Months Ended

Feb. 25, 2014

Dec. 04, 2012

Feb. 27, 2012

Oct. 28, 2011

Oct. 11, 2011

Apr. 30, 2014

Apr. 30, 2014

Feb. 25, 2014

Dec. 04, 2012

Feb. 27, 2012

Oct. 28, 2011

Oct. 11, 2011

Feb. 27, 2012

Oct. 28, 2011

Oct. 11, 2011

Jul. 31, 2013

Jul. 31, 2012

Jul. 31, 2012

Performance Shares

Performance Shares

Performance Shares

Performance Shares

Performance Shares

Performance Shares

Performance Shares

Performance Shares

Performance Shares

Performance Shares

Performance Shares

Performance Shares

Performance Shares

Performance Shares

Performance Shares

Vice President and Chief Financial Officer

Vice President and Chief Financial Officer

Vice President and Chief Financial Officer

Series Award One

Series Award One

Series Award One

Series Award One

Series Award One

Series Award Two

Series Award Two

Series Award Two

Series Award One

Series Award One

Series Award Two

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

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maximum Award (Shares)

190,694

[1],[2]

58,600

[1]

500

[1]

23,000

[1]

27,763

[1]

190,694

300,557

[1]

190,694

[1],[2]

58,600

[1]

300

[1]

13,800

[1]

16,658

[1]

200

[1]

9,200

[1]

11,105

[1]

23,242

12,992

8,661

Target award, as percentage of maximum award

'

'

'

'

'

66.67%

'

'

'

'

'

'

'

'

'

'

'

'

Vesting percentage of awards, as percentage of target award

'

'

'

'

'

60.00%

'

'

'

'

'

'

'

'

'

'

'

'

[1]

The table does not include awards of 23,242 and 12,992 in Series 1 awards (at maximum) in fiscal years 2013 and 2012, respectively, and 8,661 (at maximum) in Series 2 awards in fiscal year 2012, all of which were forfeited during the nine months ended April 30, 2014.

[2]

The percentage vesting for the 2014 performance shares award is based on the target award, which is 66.67% of the maximum award. The expected percentage of vesting is currently estimated at 60% of the target award for the fiscal year 2014 Award.

Summary_of_Activity_for_TimeBa

Summary of Activity for Time-Based Stock Awards (Detail) (Time Based Shares, USD $)	9 Months Ended
	Apr. 30, 2014
Time Based Shares	'
Non-vested Shares	'
Granted	72,868	[1]
Vested	-21,268	[2]
Non-vested on April 30, 2014	51,600
Weighted-Average Grant-Date Fair Value	'
Granted	$18.84	[1]
Vested	$18.29	[2]
Non-vested on April 30, 2014	$19.06
[1]	Includes 21,600 shares granted to certain executives and employees on February 25, 2014 which generally vest over one, two or three year service periods from the grant date or commencement of their employment. Additionally, the Company granted a time-based award for 30,000 shares to Christopher T. Fraser, when he became the Company's full-time President and CEO on September 24, 2013. These time-based shares vest in equal installments of 6,000 shares each over one, two, three, four and five years, respectively, from the date of grant. Compensation expense will be recorded over the vesting period using the straight-line method. The September 24, 2013 grant date fair value was approximately $662,000 using the Company's closing stock price of $22.07 on the grant date.
[2]	Reflects 5,760 shares, 6,380 shares, 4,000 shares and 5,128 shares granted to non-employee directors on April 30, 2014, January 31, 2014, October 31, 2013 and August 27, 2013 respectively, for service for the three months ended April 30, 2014, the three months ended January 31, 2014, the two months ended October 31, 2013 and the three months ended August 31, 2013, respectively. The shares vest on the date of grant and the Company recognizes compensation expense related to the awards over the respective service periods in accordance with GAAP.

Summary_of_Activity_for_TimeBa1

Summary of Activity for Time-Based Stock Awards (Parenthetical) (Detail) (USD $)

9 Months Ended

0 Months Ended

3 Months Ended

2 Months Ended

3 Months Ended

Apr. 30, 2014

Apr. 30, 2014

Sep. 24, 2013

Feb. 25, 2014

Feb. 25, 2014

Feb. 25, 2014

Sep. 24, 2013

Sep. 24, 2013

Oct. 31, 2013

Aug. 27, 2013

Apr. 30, 2014

Jan. 31, 2014

Time Based Shares

Time Based Awards

Time Based Awards

Certain executives and employees

Certain executives and employees

Certain executives and employees

President And Chief Executive Officer

President And Chief Executive Officer

Non-Employee Directors

Non-Employee Directors

Non-Employee Directors

Non-Employee Directors

Time Based Awards

Minimum

Maximum

Time Based Awards

Time Based Shares

Time Based Shares

Time Based Shares

Time Based Shares

Time Based Awards

Time Based Awards

Grant 1

Grant 2

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

'

'

'

'

'

'

'

'

'

'

'

'

Share based compensation award, Grant date fair value amount

'

'

$662,000

'

'

'

$1,100,000

'

'

'

'

'

Closing stock price

'

'

$22.07

'

'

'

'

'

'

'

'

'

Time-based shares vest in equal installment of shares each over one, two, three, four and five years

'

6,000

'

'

'

'

'

'

'

'

'

'

Granted

72,868

[1]

'

'

21,600

'

'

'

30,000

4,000

5,128

5,760

6,380

Grant Date

'

'

'

'

'

'

'

'

31-Oct-13

27-Aug-13

30-Apr-14

31-Jan-14

Maximum Award (Shares) vesting period

'

'

'

'2 years

'1 year

'3 years

'

'5 years

'

'

'

'

[1]

Includes 21,600 shares granted to certain executives and employees on February 25, 2014 which generally vest over one, two or three year service periods from the grant date or commencement of their employment. Additionally, the Company granted a time-based award for 30,000 shares to Christopher T. Fraser, when he became the Company's full-time President and CEO on September 24, 2013. These time-based shares vest in equal installments of 6,000 shares each over one, two, three, four and five years, respectively, from the date of grant. Compensation expense will be recorded over the vesting period using the straight-line method. The September 24, 2013 grant date fair value was approximately $662,000 using the Company's closing stock price of $22.07 on the grant date.

Intangible_Assets_Detail

Intangible Assets (Detail) (USD $)	9 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Apr. 30, 2014	Jul. 31, 2013
Finite-Lived Intangible Assets [Line Items]	'	'
Number of Years Weighted Average Amortization Period	'13 years	'13 years
Original Cost	$16,514	$16,514
Accumulated Amortization	-2,721	-1,357
Foreign Currency Translation Adjustment	906	'
Carrying Amount	14,699	15,157
Total intangible assets not subject to amortization	14,104	14,104
Total intangible assets, net	28,803	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 6 months	'6 years 6 months
Original Cost	2,297	2,297
Accumulated Amortization	-577	-253
Foreign Currency Translation Adjustment	79	'
Carrying Amount	1,799	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	-64	-57
Carrying Amount	53	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	-2,080	-1,047
Foreign Currency Translation Adjustment	827	'
Carrying Amount	$12,847	$13,053

Intangible_Assets_Parenthetica

Intangible Assets (Parenthetical) (Detail)	9 Months Ended	12 Months Ended
	Apr. 30, 2014	Jul. 31, 2013
Minimum | Electronic chemicals-related contracts	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Range of useful life	'5 years	'5 years
Minimum | Electronic chemicals-related trademarks and patents	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Range of useful life	'10 years	'10 years
Minimum | Electronic chemicals-value of product qualifications	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Range of useful life	'5 years	'5 years
Maximum | Electronic chemicals-related contracts	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Range of useful life	'8 years	'8 years
Maximum | Electronic chemicals-related trademarks and patents	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Range of useful life	'15 years	'15 years
Maximum | Electronic chemicals-value of product qualifications	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Range of useful life	'15 years	'15 years

Intangible_Asset_Additional_In

Intangible Asset - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2014	Apr. 30, 2013
Amortization expense	$403,000	$74,000	$1,400,000	$224,000

Dividends_Additional_Informati

Dividends - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended		0 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2014	Apr. 30, 2013	20-May-14
					Subsequent Event
					Dividend Declared
Dividends [Line Items]	'	'	'	'	'
Dividend paid	$349,000	$345,000	$1,000,000	$1,000,000	'
Dividend per share	$0.03	$0.03	$0.09	$0.09	'
Dividend payable amount per share	'	'	'	'	$0.03
Dividend payable declared date	'	'	'	'	20-May-14
Dividend payable payment date	'	'	'	'	20-Jun-14
Dividend payable record date	'	'	'	'	6-Jun-14

Segment_Information_Detail

Segment Information (Detail) (USD $)	3 Months Ended				9 Months Ended
In Thousands, unless otherwise specified	Apr. 30, 2014		Apr. 30, 2013		Apr. 30, 2014		Apr. 30, 2013
Segment Reporting Information [Line Items]	'		'		'		'
Net sales	$84,437		$59,929		$262,250		$182,224
Total consolidated depreciation and amortization	'		'		10,422		5,407
Operating income (loss)	2,914		4,355		4,366		14,655
Operating Segments	'		'		'		'
Segment Reporting Information [Line Items]	'		'		'		'
Net sales	84,393		59,858		262,132		181,895
Total consolidated depreciation and amortization	3,410		1,903		10,422		5,407
Operating income (loss)	5,267	[1]	5,524	[1]	15,216	[1]	18,611	[1]
Operating Segments | Electronic Chemicals	'		'		'		'
Segment Reporting Information [Line Items]	'		'		'		'
Net sales	61,542		36,333		187,422		111,487
Total consolidated depreciation and amortization	3,202		1,665		9,794		4,754
Operating income (loss)	3,175	[1]	2,978	[1]	9,508	[1]	10,479	[1]
Operating Segments | Wood Treating Chemicals	'		'		'		'
Segment Reporting Information [Line Items]	'		'		'		'
Net sales	22,851		23,525		74,710		70,408
Total consolidated depreciation and amortization	104		102		300		314
Operating income (loss)	2,092	[1]	2,546	[1]	5,708	[1]	8,132	[1]
Other	'		'		'		'
Segment Reporting Information [Line Items]	'		'		'		'
Net sales	44		71		118		329
Total consolidated depreciation and amortization	$104		$136		$328		$339
[1]	Segment income from operations includes allocated corporate overhead expenses.

Overhead_Expenses_Allocated_to

Overhead Expenses Allocated to Segment Income (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2014	Apr. 30, 2013
Segment Reporting Information [Line Items]	'	'	'	'
Total corporate overhead expense allocation	$3,164	$2,222	$9,732	$7,085
Operating Segments | Electronic Chemicals	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Total corporate overhead expense allocation	2,054	1,185	6,492	3,816
Operating Segments | Wood Treating Chemicals	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Total corporate overhead expense allocation	$1,110	$1,037	$3,240	$3,269

Reconciliation_of_Total_Segmen

Reconciliation of Total Segment to Consolidated Amounts (Detail) (USD $)	3 Months Ended				9 Months Ended
In Thousands, unless otherwise specified	Apr. 30, 2014		Apr. 30, 2013		Apr. 30, 2014		Apr. 30, 2013
Segment Reporting Information [Line Items]	'		'		'		'
Net sales	$84,437		$59,929		$262,250		$182,224
Other corporate expense	-1,292	[1]	-1,169	[1]	-5,758	[1]	-3,956	[1]
Restructuring charges	-1,061		'		-5,092		'
Operating income	2,914		4,355		4,366		14,655
Interest expense, net	-926		-388		-2,250		-1,194
Other expense, net	-105		-49		-540		-175
Income from continuing operations before income taxes	1,883		3,918		1,576		13,286
Operating Segments	'		'		'		'
Segment Reporting Information [Line Items]	'		'		'		'
Net sales	84,393		59,858		262,132		181,895
Operating income	5,267	[2]	5,524	[2]	15,216	[2]	18,611	[2]
Other	'		'		'		'
Segment Reporting Information [Line Items]	'		'		'		'
Net sales	$44		$71		$118		$329
[1]	Other corporate expense primarily represents employee stock-based compensation expenses and those public entity expenses such as board compensation, audit expense, fees related to the listing of our stock, and expenses incurred to pursue acquisition opportunities.
[2]	Segment income from operations includes allocated corporate overhead expenses.

Debt_Detail

Debt (Detail) (USD $)	Apr. 30, 2014	Jul. 31, 2013
In Thousands, unless otherwise specified
Debt Instrument [Line Items]	'	'
Total debt	$72,000	$85,000
Current maturities of long-term debt	20,000	'
Long-term debt, net of current maturities	52,000	85,000
Senior Secured Debt | Note Purchase Agreement	'	'
Debt Instrument [Line Items]	'	'
Total debt	20,000	20,000
Senior Secured Debt | Revolving Loan Facility	'	'
Debt Instrument [Line Items]	'	'
Total debt	$52,000	$65,000

Debt_Parenthetical_Detail

Debt (Parenthetical) (Detail) (Senior Secured Debt)	9 Months Ended	12 Months Ended
	Apr. 30, 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%	2.00%

LongTerm_Debt_Additional_Infor

Long-Term Debt - Additional Information (Detail) (USD $)	9 Months Ended
	Apr. 30, 2014	Jul. 31, 2013
Debt Instrument [Line Items]	'	'
Long-term debt	$72,000,000	$85,000,000
Ratio of funded debt to EBITDA maximum	3	'
Fixed charge coverage ratio maximum	1.5	'
Current ratio	1.5	'
Revolving Loan Facility	'	'
Debt Instrument [Line Items]	'	'
Amount to be borrowed under revolving loan facility	110,000,000	'
Line Of Credit Facility additional revolving loan increase	25,000,000	'
Loan maturity date	30-Apr-18	'
Reduction in revolving loan commitment	40,000,000	'
Senior Secured Debt | Revolving Loan Facility	'	'
Debt Instrument [Line Items]	'	'
Debt instrument variable rate	2.15%	1.69%
Revolving loan outstanding including letter of credit	52,000,000	'
Letter of credit outstanding	3,500,000	'
Line of credit facility maximum borrowing capacity	19,900,000	'
Senior Secured Debt | Note Purchase Agreement	'	'
Debt Instrument [Line Items]	'	'
Loan maturity date	31-Dec-14	'
Long-term debt	20,000,000	20,000,000
Note purchase agreement interest rate	7.43%	'
Each Year from September Twenty Fourteen To September Twenty Seventeen | Revolving Loan Facility	'	'
Debt Instrument [Line Items]	'	'
Reduction in revolving loan commitment	$10,000,000	'

Ratio_of_Funded_Debt_to_Ebitda

Ratio of Funded Debt to Ebitda (Detail)	9 Months Ended
	Apr. 30, 2014
Range One	'
Debt Instrument [Line Items]	'
Margin	2.25%
Range Two	'
Debt Instrument [Line Items]	'
Margin	2.00%
Range Three	'
Debt Instrument [Line Items]	'
Margin	1.75%
Range Four	'
Debt Instrument [Line Items]	'
Margin	1.50%

Ratio_of_Funded_Debt_to_Ebitda1

Ratio of Funded Debt to Ebitda (Parenthetical) (Detail)	9 Months Ended
	Apr. 30, 2014
Range One | Minimum	'
Debt Instrument [Line Items]	'
Ratio of Funded Debt to EBITDA	2.5
Range Two | Minimum	'
Debt Instrument [Line Items]	'
Ratio of Funded Debt to EBITDA	2
Range Two | Maximum	'
Debt Instrument [Line Items]	'
Ratio of Funded Debt to EBITDA	2.5
Range Three | Minimum	'
Debt Instrument [Line Items]	'
Ratio of Funded Debt to EBITDA	1.5
Range Three | Maximum	'
Debt Instrument [Line Items]	'
Ratio of Funded Debt to EBITDA	2
Range Four | Maximum	'
Debt Instrument [Line Items]	'
Ratio of Funded Debt to EBITDA	1.5

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2014	Apr. 30, 2013
Effective income tax rate	34.90%	26.20%	110.50%	34.10%
Statutory tax rate	35.00%	'	'	'
Discrete items benefits	$190,000	'	'	'
Effective Income Tax Rate Excluding Restructuring Charges And Operational Results In Italy	'	'	'	'
Effective income tax rate	31.30%	'	32.00%	'

Litigation_and_Other_Contingen1

Litigation and Other Contingencies - Additional Information (Detail)	Apr. 30, 2014	Apr. 30, 2014	Apr. 30, 2014	Apr. 30, 2014	Apr. 30, 2014
	USD ($)	Tax Assessment of Additional Registration Tax in December 2007	Tax Assessment of Additional Registration Tax in December 2007	Provincial Court in Milan, Italy	Provincial Court in Milan, Italy
		Provincial Court in Milan, Italy	Provincial Court in Milan, Italy	USD ($)	EUR (€)
		USD ($)	EUR (€)
Commitments and Contingencies [Line Items]	'	'	'	'	'
Proposed adjustment from taxing authorities resulting additional income tax	'	$1,100,000	€ 784,000	$2,400,000	€ 1,800,000
Foreign currency exchange rate, translation	1.36	1.36	1.36	'	'
Liability for uncertain tax positions in Italy	$437,000	'	'	'	'

Restructuring_Events_Additiona

Restructuring Events - Additional Information (Detail) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Apr. 30, 2014
Restructuring Cost and Reserve [Line Items]	'
Accelerated depreciation over fiscal years 2014 and 2015	$4
Minimum	'
Restructuring Cost and Reserve [Line Items]	'
Estimated restructuring charges over fiscal years 2014 and 2015	7
Maximum	'
Restructuring Cost and Reserve [Line Items]	'
Estimated restructuring charges over fiscal years 2014 and 2015	$9

Accrued_Liability_associated_w

Accrued Liability associated with Restructuring and Other Related Charges (Detail) (USD $)	3 Months Ended	9 Months Ended
In Thousands, unless otherwise specified	Apr. 30, 2014	Apr. 30, 2014
Restructuring Cost and Reserve [Line Items]	'	'
Charges	$1,061	$5,092
Payments	'	-273
Adjustment	'	51
Accrued liability at April 30, 2014	4,870	4,870
Employee costs	'	'
Restructuring Cost and Reserve [Line Items]	'	'
Charges	'	2,629
Payments	'	-273
Adjustment	'	30
Accrued liability at April 30, 2014	2,386	2,386
Decommissioning and Environmental	'	'
Restructuring Cost and Reserve [Line Items]	'	'
Charges	'	710
Adjustment	'	5
Accrued liability at April 30, 2014	715	715
Non- Cash Accelerated Depreciation	'	'
Restructuring Cost and Reserve [Line Items]	'	'
Charges	'	1,719
Adjustment	'	22
Accrued liability at April 30, 2014	1,741	1,741
Other	'	'
Restructuring Cost and Reserve [Line Items]	'	'
Charges	'	34
Adjustment	'	-6
Accrued liability at April 30, 2014	$28	$28