Apogee Enterprises (APOG) 10-Q 9 Jan 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Nov. 30, 2013	Dec. 27, 2013
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'APOGEE ENTERPRISES, INC.	'
Entity Central Index Key	'0000006845	'
Document Type	'10-Q	'
Document Period End Date	30-Nov-13	'
Amendment Flag	'false	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'
Current Fiscal Year End Date	'--03-01	'
Entity Filer Category	'Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	28,841,849

Consolidated_Balance_Sheets_un

Consolidated Balance Sheets (unaudited) (USD $)	Nov. 30, 2013	Mar. 02, 2013
In Thousands, unless otherwise specified
Current assets	'	'
Cash and cash equivalents	$19,853	$37,767
Short-term available for sale securities	2,689	26,007
Restricted short-term investments	0	21,804
Receivables, net of allowance for doubtful accounts	144,800	121,170
Inventories	46,502	36,052
Refundable income taxes	0	1,371
Deferred tax assets	540	2,218
Other current assets	5,747	5,452
Total current assets	220,131	251,841
Property, plant and equipment, net	175,831	168,948
Available-for-sale Securities, Debt Securities, Noncurrent	11,103	12,807
Restricted investments	23,678	4,639
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent	234	0
Goodwill	91,509	61,342
Intangible assets	12,510	13,675
Other assets	10,417	6,889
Total assets	545,413	520,141
Current liabilities	'	'
Accounts payable	50,369	34,235
Accrued payroll and related benefits	21,240	26,732
Accrued self-insurance reserves	5,441	6,145
Other current liabilities	27,951	23,643
Billings in excess of costs and earnings on uncompleted contracts	15,968	21,355
Current portion long-term debt	26	10,057
Accrued income taxes	4,540	0
Total current liabilities	125,535	122,167
Long-term debt	20,689	20,756
Unrecognized tax benefits	5,970	6,765
Long-term self-insurance reserves	8,828	8,030
Deferred tax liabilities	0	3,480
Other non-current liabilities	37,208	25,625
Commitments and contingent liabilities (Note 13)	'	'
Shareholders' equity	'	'
Common stock of $0.33-1/3 par value; authorized 50,000,000 shares; issued and outstanding 28,799,392 and 28,513,536, respectively	9,600	9,505
Additional paid-in capital	126,373	119,759
Retained earnings	220,665	211,135
Common stock held in trust	-783	-761
Deferred compensation obligations	783	761
Accumulated other comprehensive loss	-9,455	-7,081
Total shareholders’ equity	347,183	333,318
Total liabilities and shareholders' equity	$545,413	$520,141

Consolidated_Balance_Sheets_un1

Consolidated Balance Sheets (unaudited) (Parenthetical) (USD $)	Nov. 30, 2013	Mar. 02, 2013
Statement of Financial Position [Abstract]	'	'
Common stock, par value	$0.33	$0.33
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	28,799,392	28,513,536
Common stock, shares outstanding	28,799,392	28,513,536

Consolidated_Results_of_Operat

Consolidated Results of Operations (unaudited) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Nov. 30, 2013	Dec. 01, 2012	Nov. 30, 2013	Dec. 01, 2012
Income Statement [Abstract]	'	'	'	'
Net sales	$199,430	$190,416	$557,028	$520,490
Cost of sales	156,042	148,176	438,719	411,038
Gross profit	43,388	42,240	118,309	109,452
Selling, general and administrative expenses	30,681	30,829	90,129	88,170
Operating income	12,707	11,411	28,180	21,282
Interest income	206	253	593	569
Interest expense	228	330	973	945
Other income (expense), net	107	198	72	609
Earnings from continuing operations before income taxes	12,792	11,532	27,872	21,515
Income tax expense (benefit)	3,124	3,480	7,924	6,800
Net earnings	$9,668	$8,052	$19,948	$14,715
Earnings per share - basic	'	'	'	'
Net earnings	$0.34	$0.29	$0.70	$0.53
Earnings per share - diluted	'	'	'	'
Net earnings	$0.33	$0.28	$0.68	$0.52
Weighted average basic shares outstanding	28,483	28,029	28,439	27,913
Weighted average diluted shares outstanding	29,376	28,832	29,308	28,497
Cash dividends declared per common share	$0.09	$0.09	$0.27	$0.27

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Earnings (unaudited) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Nov. 30, 2013	Dec. 01, 2012	Nov. 30, 2013	Dec. 01, 2012
Statement of Other Comprehensive Income [Abstract]	'	'	'	'
Net earnings	$9,668	$8,052	$19,948	$14,715
Other comprehensive earnings:	'	'	'	'
Unrealized gain (loss) on marketable securities, net of $56, $(-), $(95) and $5 tax expense (benefit), respectively	105	-2	-175	9
Unrealized gain on foreign currency hedge, net of $184 and $264 tax expense	322	0	463	0
Foreign currency translation adjustments	-1,045	-116	-2,662	-1,644
Other comprehensive earnings (loss)	-618	-118	-2,374	-1,635
Total comprehensive earnings	$9,050	$7,934	$17,574	$13,080

Consolidated_Statements_of_Com1

Consolidated Statements of Comprehensive Earnings (Unaudited) (Parenthetical) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Nov. 30, 2013	Dec. 01, 2012	Nov. 30, 2013	Dec. 01, 2012
Statement of Other Comprehensive Income [Abstract]	'	'	'	'
Tax expense (benefit) on marketable securities	$56	$0	($95)	$5
Tax expense (benefit) on foreign currency hedge	$184	$0	$264	$0

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (unaudited) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Nov. 30, 2013	Dec. 01, 2012
Operating Activities	'	'
Net earnings	$19,948	$14,715
Adjustments to reconcile net earnings to net cash provided by (used in) operating activities:	'	'
Depreciation and amortization	19,576	19,817
Stock-based compensation	3,471	3,514
Deferred income taxes	-2,224	697
Excess tax benefits from stock-based compensation	-1,780	-380
Gain on disposal of assets	-1,297	-877
Proceeds from new markets tax credit transaction, net of deferred costs	7,752	0
Other, net	-214	393
Changes in operating assets and liabilities:	'	'
Receivables	-8,247	-19,506
Inventories	-4,378	-8,672
Accounts payable and accrued expenses	10,443	12,273
Billings in excess of costs and earnings on uncompleted contracts	-5,387	3,712
Refundable and accrued income taxes	5,518	-1,783
Other, net	-475	-982
Net cash provided by (used in) operating activities	42,706	22,921
Investing Activities	'	'
Capital expenditures	-17,255	-21,265
Proceeds from sales of property, plant and equipment	733	48
Payments to Acquire Businesses, Net of Cash Acquired	-52,806	-15
Purchases of restricted investments	-36,200	-10,000
Sales/maturities of restricted investments	38,968	5,248
Purchases of marketable securities	-14,300	-40,837
Sales/maturities of marketable securities	37,917	26,922
Investments in corporate-owned life insurance policies	0	-1,451
Net cash provided by (used in) investing activities	-42,943	-41,350
Financing Activities	'	'
Proceeds from issuance of debt	0	10,000
Payments on debt	-10,068	-125
Payments on debt issue costs	-117	-574
Shares withheld for taxes, net of stock issued to employees	-961	-261
Excess tax benefits from stock-based compensation	1,780	380
Dividends paid	-7,868	-7,751
Net cash provided by (used in) financing activities	-17,234	1,669
Increase (decrease) in cash and cash equivalents	-17,471	-16,760
Effect of exchange rates on cash	-443	151
Cash and cash equivalents at beginning of year	37,767	54,027
Cash and cash equivalents at end of period	19,853	37,418
Noncash Activity	'	'
Capital expenditures in accounts payable	$1,396	$888

Basis_of_Presentation

Basis of Presentation	9 Months Ended
	Nov. 30, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Basis of Presentation	'
	Basis of Presentation
	The consolidated financial statements of Apogee Enterprises, Inc. (we, us, our or the Company) included herein have been prepared in accordance with accounting principles generally accepted in the United States. The consolidated financial statements and notes are presented as permitted by the regulations of the Securities and Exchange Commission (Form 10-Q) and do not contain certain information included in the Company’s annual financial statements and notes. The information included in this Form 10-Q should be read in conjunction with the Management’s Discussion and Analysis of Financial Condition and Results of Operations and financial statements and notes thereto included in the Company’s Form 10-K for the year ended March 2, 2013. The results of operations for the nine-month period ended November 30, 2013 are not necessarily indicative of the results to be expected for the full year.
	In the opinion of the Company, the accompanying unaudited consolidated financial statements contain all adjustments (consisting of only normal recurring adjustments) necessary to present fairly the financial position as of November 30, 2013 and March 2, 2013, and the results of operations and comprehensive earnings for the three and nine-month periods ended November 30, 2013 and December 1, 2012, and cash flows for the nine-month periods ended November 30, 2013 and December 1, 2012.
	The results of Alumicor Limited (Alumicor), which the Company acquired on November 5, 2013, have been included in the consolidated financial statements since the date of acquisiton. Refer to Note 8 for further information regarding the acquisition of Alumicor and its treatment in the consolidated financial statements.
	The Company’s fiscal year ends on the Saturday closest to the last day of February. Each interim quarter ends on the Saturday closest to the end of the months of May, August and November.
	The results of the Company's Brazilian subsidiary within the Architectural Glass segment are reported on a two-month lag. There were no significant intervening events which would have materially affected our consolidated financial statements had they been recorded during the nine months ended November 30, 2013.
	In connection with preparing the unaudited consolidated financial statements for the nine months ended November 30, 2013, the Company has evaluated subsequent events for potential recognition and disclosure through the date of this filing and determined that there were no subsequent events that required recognition or disclosure in the consolidated financial statements.

New_Accounting_Standards

New Accounting Standards	9 Months Ended
	Nov. 30, 2013
Accounting Changes and Error Corrections [Abstract]	'
New Accounting Standards	'
	New Accounting Standards
	In February 2013, the FASB issued authoritative guidance surrounding the presentation of items reclassified from other comprehensive income to net income. This guidance requires entities to disclose, either in the notes to the consolidated financial statements or parenthetically on the face of the statement that reports comprehensive income, items reclassified out of accumulated other comprehensive income and into net income in their entirety and the effect of the reclassification on each affected net income line item. This guidance is effective for fiscal years and interim periods beginning after December 15, 2012, Apogee's fiscal 2014. The adoption of this new standard in the first quarter of fiscal 2014 did not impact Apogee's consolidated financial condition, results of operations or cash flows. The reclassifications out of accumulated other comprehensive income and into net income were not material for the nine months ended November 30, 2013.
	No other new accounting pronouncements issued or effective during the first nine months of fiscal 2014 have had or are expected to have a material impact on the consolidated financial statements.

StockBased_Compensation

Stock-Based Compensation	9 Months Ended
	Nov. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Stock-Based Compensation	'
	Stock-Based Compensation
	Total stock-based compensation expense included in the results of operations was $3.5 million for each of the nine-month periods ended November 30, 2013 and December 1, 2012.
	Stock Options and SARs
	There were no options or SARs issued in the first nine months of fiscal 2014 or 2013. The following table summarizes the award transactions for the nine months ended November 30, 2013:
		Options/SARs Outstanding
		Number of		Weighted		Weighted	Aggregate
		Shares		Average		Average	Intrinsic
				Exercise Price		Remaining	Value
						Contractual
						Life
	Outstanding at March 2, 2013	1,362,373		$	15.89
	Awards exercised	(302,670	)	20.64
	Awards canceled	(8,376	)	19.4
	Outstanding at November 30, 2013	1,051,327		$	14.51	5.1 Years	$	22,406,495
	Vested or expected to vest at November 30, 2013	1,051,327		$	14.51	5.1 Years	$	22,406,495
	Exercisable at November 30, 2013	901,156		$	15.54	4.6 Years	$	18,279,796
	At November 30, 2013, there was $0.3 million of total unrecognized compensation cost related to stock option awards, which is expected to be recognized over a weighted average period of approximately nine months. Cash proceeds from the exercise of stock options were $2.0 million and $1.2 million for the nine months ended November 30, 2013 and December 1, 2012, respectively. The amount by which the stock price on the date of exercise exceeded the stock price of the award on the date of grant for options exercised was $2.4 million during the nine months ended November 30, 2013 and was $1.8 million during the prior-year period.
	Nonvested Shares and Share Units
	The following table summarizes the nonvested share award transactions, including nonvested share units, for the nine months ended November 30, 2013:
		Nonvested Shares and Units
		Number of		Weighted
		Shares and		Average
		Units		Grant Date
				Fair Value
	Nonvested at March 2, 2013	831,573		$	13.17
	Granted	155,471		26.36
	Vested	(336,933	)	13.04
	Canceled(1)	(78,797	)	13.8
	Nonvested at November 30, 2013(2)	571,314		$	16.75
	-1	Includes 75,547 of nonvested share units canceled under the fiscal 2011-2013 performance period because Apogee performed below target level for that performance period. Nonvested share units of 174,353 (at target) were previously granted in fiscal 2011 for this performance period.
	-2	Includes a total of 117,765 nonvested share units granted and outstanding at target level for the fiscal 2012-2014 performance period.
	At November 30, 2013, there was $5.9 million of total unrecognized compensation cost related to nonvested share and nonvested share unit awards, which is expected to be recognized over a weighted average period of approximately 23 months. The total fair value of shares vested during the nine-month period of fiscal 2014 was $8.5 million.

Earnings_per_Share

Earnings per Share	9 Months Ended
	Nov. 30, 2013
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	Earnings per Share
	The following table presents a reconciliation of the denominators used in the computation of basic and diluted earnings per share:
		Three Months Ended				Nine Months Ended
	(In thousands, except per share data)	November 30,		December 1,		November 30,		December 1,
		2013		2012		2013		2012
	Basic earnings per share – weighted common shares outstanding	28,483		28,029		28,439		27,913
	Weighted average effect of nonvested share grants and assumed exercise of stock options	893		803		869		584
	Diluted earnings per share – weighted common shares and potential common shares outstanding	29,376		28,832		29,308		28,497
	Earnings per share – basic	$	0.34	$	0.29	$	0.7	$	0.53
	Earnings per share – diluted	0.33		0.28		0.68		0.52
	Stock options excluded from the calculation of earnings per share because the exercise price was greater than the average market price of the common shares	—		529		—		235

Inventories

Inventories	9 Months Ended
	Nov. 30, 2013
Inventory Disclosure [Abstract]	'
Inventories	'
	Inventories
	(In thousands)	November 30,		March 2,
		2013		2013
	Raw materials	$	17,770	$	11,834
	Work-in-process	11,699		7,754
	Finished goods	14,952		13,397
	Costs and earnings in excess of billings on uncompleted contracts	2,081		3,067
	Total inventories	$	46,502	$	36,052

Marketable_Securities

Marketable Securities	9 Months Ended
	Nov. 30, 2013
Marketable Securities [Abstract]	'
Marketable Securities	'
	Marketable Securities
	At November 30, 2013, the Company had investments in municipal bonds of $13.8 million; $2.7 million was current and $11.1 million was non-current. The Company’s wholly owned insurance subsidiary, Prism Assurance, Ltd. (Prism), holds $11.2 million of the municipal bonds. Prism insures a portion of the Company’s workers’ compensation, general liability and automobile liability risks using reinsurance agreements to meet statutory requirements. The reinsurance carrier requires Prism to maintain fixed-maturity investments, which are generally high-quality municipal bonds, for the purpose of providing collateral for Prism’s obligations under the reinsurance agreement. All of the Company’s fixed maturity investments are classified as “available for sale,” are carried at fair value and are reported as short-term available-for-sale securities or available-for-sale securities in the consolidated balance sheet.
	The amortized cost, gross unrealized gains and losses, and estimated fair values of investments available for sale at November 30, 2013 and March 2, 2013, were as follows:
	(In thousands)	Amortized Cost		Gross Unrealized Gains			Gross Unrealized Losses			Estimated
										Fair
										Value
	November 30, 2013
	Municipal bonds	$	14,175	$	48		$	(431	)	$	13,792
	Total investments	$	14,175	$	48		$	(431	)	$	13,792
	March 2, 2013
	Municipal bonds	$	38,927	$	127		$	(240	)	$	38,814
	Total investments	$	38,927	$	127		$	(240	)	$	38,814
	The Company tests for other than temporary losses on a quarterly basis and considers the unrealized losses indicated above to be temporary in nature. The Company intends to hold the investments until it can recover the full principal amount, and has the ability to do so based on other sources of liquidity. The Company expects such recoveries to occur prior to the contractual maturities.
	The following table presents the length of time that available-for-sale securities were in continuous unrealized loss positions, but were not deemed to be other than temporarily impaired, as of November 30, 2013:
		Less Than 12 Months					Greater Than or Equal  to						Total
							12 Months
	(In thousands)	Fair Value		Unrealized Losses			Fair Value			Unrealized Losses			Fair Value		Unrealized Losses
	Municipal bonds	$	6,495	$	(202	)	$	1,021		$	(229	)	$	7,516	$	(431	)
	Total investments	$	6,495	$	(202	)	$	1,021		$	(229	)	$	7,516	$	(431	)
	The amortized cost and estimated fair values of investments at November 30, 2013, by contractual maturity, are shown below. Expected maturities may differ from contractual maturities as borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.
	(In thousands)	Amortized Cost		Estimated Market Value
	Due within one year	$	2,688	$	2,689
	Due after one year through five years	2,720		2,743
	Due after five years through 10 years	7,451		7,272
	Due after 10 years through 15 years	1,250		1,021
	Due beyond 15 years	66		67
	Total	$	14,175	$	13,792
	Gross realized gains and losses were not material during the either of the nine-month periods of fiscal 2014 or 2013.

Fair_Value_Measurements

Fair Value Measurements	9 Months Ended
	Nov. 30, 2013
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	Fair Value Measurements
	The Company accounts for financial assets and liabilities in accordance with accounting standards that define fair value and establish a framework for measuring fair value. The hierarchy prioritizes the inputs into three broad levels. Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2 inputs are quoted prices for similar assets and liabilities in active markets or inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the financial instrument. Level 3 inputs are unobservable inputs based on the Company’s assumptions used to measure assets and liabilities at fair value. A financial asset’s or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement.
	Financial assets and liabilities measured at fair value as of November 30, 2013 and March 2, 2013, are summarized below:
	(In thousands)	Quoted Prices in		Other		Unobservable		Total Fair
		Active Markets		Observable		Inputs		Value
		(Level 1)		Inputs		(Level 3)
				(Level 2)
	November 30, 2013
	Cash equivalents
	Money market funds	$	9,147	$	—	$	—	$	9,147
	Total cash equivalents	9,147		—		—		9,147
	Available for sale securities
	Municipal bonds	$	—	$	13,792	$	—	$	13,792
	Total available for sale securities	—		13,792		—		13,792
	Restricted investments
	Money market funds	$	23,678	$	—	$	—	$	23,678
	Total restricted investments	23,678		—		—		23,678
	Mutual fund investments
	Mutual funds	$	841	$	—	$	—	$	841
	Total mutual fund investments	841		—		—		841
	Foreign currency instruments
	Foreign currency instruments	$	—	$	205	$	—	$	205
	Total foreign currency instruments	$	—	$	205	$	—	$	205
	Total assets at fair value	$	33,666	$	13,997	$	—	$	47,663
	March 2, 2013
	Cash equivalents
	Money market funds	$	17,639	$	—	$	—	$	17,639
	Total cash equivalents	17,639		—		—		17,639
	Available for sale securities
	Municipal bonds	$	—	$	38,814	$	—	$	38,814
	Total available for sale securities	—		38,814		—		38,814
	Restricted investments
	Money market funds	$	26,443	$	—	$	—	$	26,443
	Total restricted investments	26,443		—		—		26,443
	Mutual fund investments
	Mutual funds	$	251	$	—	$	—	$	251
	Total mutual fund investments	251		—		—		251
	Total assets at fair value	$	44,333	$	38,814	$	—	$	83,147
	Foreign currency instruments
	Foreign currency instruments	$	—	$	405	$	—	$	405
	Total liabilities at fair value	$	—	$	405	$	—	$	405
	Cash equivalents
	Cash equivalents include highly liquid investments with an original maturity of three months or less, and consist primarily of money market funds. The cash equivalents are held at fair value based on quoted market prices, which approximate stated cost.
	Available for sale securities
	The Company had short-term available-for-sale securities of $2.7 million and long-term available-for-sale securities of $11.1 million as of November 30, 2013, consisting of municipal bonds. All of the Company’s fixed maturity investments are classified as “available for sale,” and are carried at fair market value based on market prices from recent trades of similar securities.
	Restricted investments
	The Company had $23.7 million of long-term restricted investments, as of November 30, 2013, consisting of money market funds, which are short term in nature but are restricted for use in the Company's planned capital investments in the Architectural Glass segment business and for future investment in the Company’s storefront and entrance business in Michigan, and are, therefore, classified as long term. The restricted investments are held at fair value based on quoted market prices, which approximate stated cost.
	Mutual fund investments
	The Company had $0.8 million of mutual fund investments as of November 30, 2013 as a long-term funding source for the deferred compensation plan. The mutual fund investments are recorded at estimated fair value, based on quoted market prices, and are included in other non-current assets in the consolidated balance sheet.
	Foreign currency instruments
	The Company has a foreign exchange forward contract in place to hedge against the effect of exchange rate fluctuations on certain forecasted purchases. The forward contract is measured at fair value using readily observable market inputs, such as quotations on forward foreign exchange points and foreign interest rates.

Acquisitions

Acquisitions	9 Months Ended
	Nov. 30, 2013
Business Combinations [Abstract]	'
Business Combination Disclosure [Text Block]	'
	Acquisitions
	On November 5, 2013, the Company acquired all of the shares of Alumicor Limited (Alumicor), a privately held business, for $52.4 million, including cash acquired of $1.6 million. Alumicor is a window, storefront, entrance and curtainwall company primarily serving the Canadian commercial construction market. Alumicor's results of operations have been included in the consolidated financial statements and within the Architectural Framing Systems segment since the date of acquisition, including $4.8 million of sales and break-even results after approximately $0.5 million of acquisition-related expenses, which are included in selling, general and administrative expenses in the Company's consolidated results of operations.
	The assets and liabilities of Alumicor were recorded in the consolidated balance sheet within the Architectural Framing Systems segment as of the acquisition date, at their respective fair values. The preliminary purchase price allocation is based on the estimated fair value of assets acquired and liabilities assumed and have been allocated as follows:
	(In thousands)	5-Nov-13
	Current assets	$	17,168
	Property, plant and equipment	8,255
	Goodwill	31,017
	Current liabilities	(5,634		)
	Net assets acquired	$	50,806
	Because the acquisition was completed near quarter-end, all balances recorded are estimated amounts; the purchase price allocation is expected to be finalized in the fourth quarter, as the valuation of identifiable assets and liabilities is completed.
	The following pro forma consolidated condensed financial results of operations for the three and nine-months ended November 30, 2013 and December 1, 2012 are presented as if the acquisition had been completed at the beginning of fiscal year 2013:
		Three Months Ended					Nine Months Ended
	(In thousands, except per share data)	November 30, 2013			December 1, 2012		November 30, 2013		December 1, 2012
	Net sales	$	210,613		$	207,359	$	595,451	$	563,579
	Net income	10,595			10,028		22,516		18,439
	Earnings per share
	Basic	$	0.37		$	0.36	$	0.79	$	0.66
	Diluted	0.36			0.35		0.77		0.65
	These pro forma consolidated condensed financial results have been prepared for comparative purposes only and include certain adjustments, such as elimination of interest expense on pre-acquisition debt of the acquiree. The adjustments do not reflect the effect of synergies, integration costs and intangible amortization that would result from integration of this acquisition.

Goodwill_and_Other_Identifiabl

Goodwill and Other Identifiable Intangible Assets	9 Months Ended
	Nov. 30, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Goodwill and Other Identifiable Intangible Assets	'
	Goodwill and Other Identifiable Intangible Assets
	The carrying amount of goodwill attributable to each business segment as of the nine months ended November 30, 2013 is detailed below, including estimated goodwill for the Alumicor acquisition.
	(In thousands)	Architectural Glass			Architectural Services			Architectural Framing Systems			Large-Scale		Total
											Optical
	Balance at March 3, 2012	$	27,277		$	1,120		$	22,663		$	10,557	$	61,617
	Foreign currency translation	(275		)	—			—			—		(275		)
	Balance at March 2, 2013	27,002			1,120			22,663			10,557		61,342
	Goodwill acquired	—			—			31,017			—		31,017
	Foreign currency translation	(223		)	—			(627		)	—		(850		)
	Balance at November 30, 2013	$	26,779		$	1,120		$	53,053		$	10,557	$	91,509
	The Company’s identifiable intangible assets with finite lives are being amortized over their estimated useful lives and were as follows:
		30-Nov-13
	(In thousands)	Gross			Accumulated			Foreign			Net
		Carrying			Amortization			Currency
		Amount						Translation
	Debt issue costs	$	3,405		$	(2,323	)	$	—		$	1,082
	Non-compete agreements	6,767			(6,227		)	(22		)	518
	Customer relationships	15,354			(10,238		)	(194		)	4,922
	Purchased intellectual property	8,566			(2,427		)	(151		)	5,988
	Total	$	34,092		$	(21,215	)	$	(367	)	$	12,510
		March 2, 2013
	(In thousands)	Gross			Accumulated			Foreign			Net
		Carrying			Amortization			Currency
		Amount						Translation
	Debt issue costs	$	3,556		$	(2,209	)	$	—		$	1,347
	Non-compete agreements	6,824			(6,124		)	(38		)	662
	Customer relationships	15,628			(9,541		)	(266		)	5,821
	Purchased intellectual property	8,210			(2,169		)	(196		)	5,845
	Total	$	34,218		$	(20,043	)	$	(500	)	$	13,675
	Amortization expense on these identifiable intangible assets was $1.3 million and $2.0 million for nine-month periods ended November 30, 2013 and December 1, 2012, respectively. In addition to the amortization expense noted above, in the first quarter of fiscal 2014, the Company expensed $0.2 million of debt issue costs that had previously been deferred and were being amortized over the term of the debt previously issued for future investment in the Company's Architectural Glass fabrication facility in Utah. The amortization expense associated with the debt issue costs is included in interest expense while the remainder is in selling, general and administrative expenses in the consolidated results of operations. At November 30, 2013, the estimated future amortization expense for identifiable intangible assets, excluding estimated amortization expense for Alumicor, for the remainder of fiscal 2014 and all of the following four fiscal years is as follows:
	(In thousands)	Remainder			Fiscal			Fiscal			Fiscal		Fiscal
		of Fiscal			2015			2016			2017		2018
		2014
	Estimated amortization expense	$	783		$	1,693		$	1,346		$	1,198	$	1,145

Debt

Debt	9 Months Ended
	Nov. 30, 2013
Debt Disclosure [Abstract]	'
Debt	'
	Debt
	During the third quarter of fiscal 2014, the Company entered into an amendment to its existing $100.0 million revolving credit facility. The expiration date was extended by one year, to November 2018 from October 2017, and the letter of credit facility was reduced to $50.0 million from $60.0 million, the outstanding amounts of which decrease the available commitment. No other provisions of the original agreement were materially amended by the amended credit agreement. No borrowings were outstanding under the facility as of November 30, 2013 or March 2, 2013.
	The credit facility requires the Company to maintain a minimum level of net worth, as defined in the credit facility, based on certain quarterly financial calculations. The minimum required net worth computed in accordance with the credit agreement at November 30, 2013 was $280.4 million, whereas the Company’s net worth as defined in the credit facility was $347.2 million. The credit facility also requires that the Company maintain an adjusted debt-to-EBITDA ratio of not more than 3.00. This ratio is computed quarterly, with EBITDA computed on a rolling four-quarter basis. For purposes of calculating the adjusted debt in the adjusted debt-to-EBITDA ratio, the Company reduces non-credit facility debt for up to $25 million to the extent of unrestricted cash balances, cash equivalents and short-term marketable securities available for sale in excess of $15 million. The Company’s ratio was 0.32 at November 30, 2013. If the Company is not in compliance with either of these covenants, the lenders may terminate the commitment and/or declare any loan then outstanding to be immediately due and payable. At November 30, 2013, the Company was in compliance with the financial covenants of the credit facility.
	During the first quarter of fiscal 2014, $10.0 million of recovery zone facility bonds that had previously been issued for future investment in the Company's Architectural Glass fabrication facility in Utah were redeemed at par. In connection with redeeming this debt in the first quarter of fiscal 2014, the Company expensed $0.2 million of debt issue costs that had previously been deferred and were being amortized over the term of the debt.
	Debt at November 30, 2013 consists of $20.4 million of industrial revenue bonds, and $0.3 million of other debt. The industrial revenue bonds mature in fiscal years 2021 through 2043, and the other debt matures in fiscal years 2014 through 2021. The fair value of the industrial revenue bonds approximates carrying value at November 30, 2013, due to the variable interest rates on these instruments. The bonds are classified as Level 2 within the fair value hierarchy.
	Interest payments were $0.5 million and $0.6 million for the nine months ended November 30, 2013 and December 1, 2012, respectively, and primarily relate to fees associated with our revolving credit facility.

Employee_Benefit_Plans

Employee Benefit Plans	9 Months Ended
	Nov. 30, 2013
Compensation and Retirement Disclosure [Abstract]	'
Employee Benefit Plans	'
	Employee Benefit Plans
	Pension Plans
	The Company sponsors an unfunded Officers’ Supplemental Executive Retirement Plan for the benefit of certain executives and a defined-benefit pension plan, the Tubelite, Inc. Hourly Employees’ Pension Plan. Components of net periodic benefit cost for the plans for the three and nine-month periods ended November 30, 2013 and December 1, 2012, were as follows:
		Three Months Ended						Nine Months Ended
	(In thousands)	November 30,			December 1,			November 30,			December 1,
		2013			2012			2013			2012
	Interest cost	$	134		$	142		$	402		$	426
	Expected return on assets	(46		)	(44		)	(138		)	(132		)
	Amortization of unrecognized net loss	41			53			123			159
	Net periodic benefit cost	$	129		$	151		$	387		$	453

Income_Taxes

Income Taxes	9 Months Ended
	Nov. 30, 2013
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	Income Taxes
	The Company files income tax returns in the U.S. federal jurisdiction, various U.S. state jurisdictions, Brazil and other international jurisdictions. The Company is no longer subject to U.S. federal tax examinations for years prior to fiscal 2011, or state and local income tax examinations for years prior to fiscal 2005. The Company is not currently under U.S. federal examination for years subsequent to fiscal year 2010, and there is very limited audit activity of the Company’s income tax returns in U.S. state jurisdictions or international jurisdictions.
	The total liability for unrecognized tax benefits at November 30, 2013 and March 2, 2013 was approximately $6.0 million and $6.8 million, respectively. The decrease in unrecognized tax benefits was mainly due to the release of reserves upon expiration of the IRS statute extension for fiscal year 2009, as well as the lapsing of the federal statute for fiscal year 2010. The Company records the impact of penalties and interest related to unrecognized tax benefits in income tax expense, which is consistent with past practices. The total liability for unrecognized tax benefits is expected to decrease by approximately $0.6 million during the next 12 months due to lapsing of statutes.
	In September 2013, the U.S. Department of the Treasury and the IRS issued final regulations addressing the acquisition , production and improvement of tangible property, and also proposed regulations addressing the disposition of property. These regulations replace previously issued temporary regulations and are effective for tax years beginning January 1, 2014, with optional adoption permitted in 2013. The Company is in the process of analyzing the impact of these new regulations but does not believe they will have a material impact on the Company’s consolidated financial statements. The Company plans to complete this analysis during the fourth quarter of fiscal year 2014.

Commitments_and_Contingent_Lia

Commitments and Contingent Liabilities	9 Months Ended
	Nov. 30, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingent Liabilities	'
	Commitments and Contingent Liabilities
	Operating lease commitments. As of November 30, 2013, the Company was obligated under non-cancelable operating leases for buildings and equipment. Certain leases provide for increased rentals based upon increases in real estate taxes or operating costs. Future minimum rental payments under non-cancelable operating leases are:
	(In thousands)	Remainder			Fiscal			Fiscal		Fiscal		Fiscal		Thereafter		Total
		of Fiscal			2015			2016		2017		2018
		2014
	Total minimum payments	$	2,982		$	8,895		$	8,377	$	6,642	$	5,292	$	9,038	$	41,226
	Bond commitments. In the ordinary course of business, predominantly in the Company’s Architectural Services business, the Company is required to provide surety or performance bonds that commit payments to its customers for any non-performance by the Company. At November 30, 2013, $83.2 million of the Company’s backlog was bonded by performance bonds with a face value of $240.3 million. Performance bonds do not have stated expiration dates, as the Company is released from the bonds upon completion of the contract. The Company has never been required to make any payments related to these performance bonds with respect to any of the current portfolio of businesses.
	Warranties. The Company accrues for warranty and claim costs as a percentage of sales based on historical trends and for specific sales credits as they become known and estimable. Actual warranty and claim costs are deducted from the accrual when paid. Factors that could have an impact on the warranty accrual in any given period include the following: changes in manufacturing quality, shifts in product mix and any significant changes in sales volume. The Company’s warranty and claim accruals are detailed below.
		Nine Months Ended
	(In thousands)	November 30,			December 1,
		2013			2012
	Balance at beginning of period	$	8,323		$	7,210
	Additional accruals	4,550			3,197
	Claims paid	(2,426		)	(2,185		)
	Balance at end of period	$	10,447		$	8,222
	Letters of credit. At November 30, 2013, the Company had ongoing letters of credit related to its construction contracts and certain industrial revenue bonds. The total value of letters of credit under which the Company was obligated as of November 30, 2013 was approximately $23.5 million, all of which have been issued under the credit facility. The Company’s total availability under its $100.0 million credit facility is reduced by borrowings under the facility and also by letters of credit issued under the facility.
	Purchase obligations. The Company has purchase obligations for raw material commitments and capital expenditures. As of November 30, 2013, these obligations totaled $75.4 million.
	Foreign currency instruments. The Company has a foreign exchange forward contract with a U.S. dollar notional value of $18.6 million with the objective of reducing the exposure to fluctuations in the euro related to a planned capital equipment purchase. The fair value of this contract was an asset of $0.3 million at November 30, 2013 and is included in the balance sheet caption as other current assets. The Company reports the effective portion of the gain or loss on a cash flow hedge as a component of other comprehensive income, and any gain or loss is included in the value of the capital asset and will be recognized in earnings over the life of the asset.
	New markets tax credit transaction. On November 7, 2013, the Company entered into a transaction with JP Morgan Chase (JPM) related to an investment in plant and equipment within the Company’s Architectural Glass segment (the Project) whereby the Company received $7.8 million of cash from a qualified New Markets Tax Credit program (NMTC). The NMTC was provided for in the Community Renewal Tax Relief Act of 2000 and is intended to induce investment in underserved and impoverished areas of the United States. The Act permits taxpayers, whether companies or individuals, to claim credits against their federal income taxes for up to 39 percent of investments in qualified, active low-income businesses or ventures.
	In exchange for substantially all of the benefits derived from the tax credits, JPM contributed $10.7 million into the Project. JPM does not have a material interest in the underlying economics of the Project. As a result of the transaction structure, the Company has concluded that the entities created in relation to the NMTC transaction will be consolidated as variable-interest entities.
	Based on the contractual arrangements that obligate the Company to deliver tax benefits to JPM, the Company has included the value of JPM’s contribution in other non-current liabilities within the consolidated balance sheets. The NMTC is subject to 100 percent recapture for a period of seven years. Proceeds received in exchange for the transfer of the tax credits will be recognized as earnings in fiscal 2021, if the expected tax benefits are delivered without risk of recapture to JPM and our performance obligation is relieved.
	Direct and incremental costs incurred in structuring the arrangement have been deferred and will be recognized in proportion to the recognition of the related profits. These costs amounted to $3.0 million and are included in other non-current assets on the Company’s consolidated balance sheet.
	Litigation. The Company is a party to various legal proceedings incidental to its normal operating activities. In particular, like others in the construction supply and services industry, the Company’s construction supply and services businesses are routinely involved in various disputes and claims arising out of construction projects, sometimes involving significant monetary damages or product replacement. The Company is subject to litigation arising out of employment practices, workers compensation, general liability and automobile claims. Although it is very difficult to accurately predict the outcome of such proceedings, facts currently available indicate that no such claims will result in losses that would have a material adverse effect on the results of operations, cash flows or financial condition of the Company.

Segment_Information

Segment Information	9 Months Ended
	Nov. 30, 2013
Segment Reporting [Abstract]	'
Segment Information	'
	Segment Information
	In the fourth quarter of fiscal 2013, the Company expanded the number of reporting segments to four: Architectural Glass, Architectural Services, Architectural Framing Systems and Large-Scale Optical (LSO). Prior-year comparative information has been recast to conform to the current reporting segment presentation. The Architectural Glass segment fabricates glass used in customized window and wall systems comprising the outside skin of commercial and institutional buildings. The Architectural Services segment designs, engineers, fabricates and installs the walls of glass, windows and other curtainwall products making up the outside skin of commercial and institutional buildings for new construction and renovation. The Architectural Framing Systems segment designs, engineers, fabricates and finishes the aluminum frames used in customized aluminum and glass window, curtainwall, storefront and entrance systems comprising the outside skin and entrances of commercial and institutional buildings. The Company has aggregated four operating segments into the Architectural Framing Systems reporting segment based upon their similar products, customers, distribution methods, production processes and economic characteristics. The LSO segment manufactures value-added glass and acrylic products for the custom picture framing market.
	The following table presents sales and operating income data for the Company’s four reporting segments, and on a consolidated basis, for the three and nine months ended November 30, 2013, as compared to the corresponding periods a year ago:
		Three Months Ended						Nine Months Ended
	(In thousands)	November 30,			December 1,			November 30,			December 1,
		2013			2012			2013			2012
	Net Sales from operations
	Architectural Glass	$	73,365		$	74,921		$	218,142		$	197,264
	Architectural Services	51,167			49,125			139,820			134,696
	Architectural Framing Systems	58,981			51,605			152,877			146,182
	Large-Scale Optical	22,699			21,648			61,917			60,477
	Intersegment eliminations	(6,782		)	(6,883		)	(15,728		)	(18,129		)
	Net sales	$	199,430		$	190,416		$	557,028		$	520,490
	Operating Income (Loss) from operations
	Architectural Glass	$	1,641		$	461		$	3,782		$	(3,963	)
	Architectural Services	351			(196		)	(1,401		)	(3,794		)
	Architectural Framing Systems	5,782			5,573			13,026			14,735
	Large-Scale Optical	6,058			6,557			16,072			17,021
	Corporate and other	(1,125		)	(984		)	(3,299		)	(2,717		)
	Operating income	$	12,707		$	11,411		$	28,180		$	21,282
	Due to the varying combinations and integration of individual window, storefront and curtainwall systems, the Company has determined that it is impractical to report product revenues generated by class of product, beyond the segment revenues currently reported.

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	9 Months Ended
	Nov. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Award transactions on stock options	'
	The following table summarizes the award transactions for the nine months ended November 30, 2013:
		Options/SARs Outstanding
		Number of		Weighted		Weighted	Aggregate
		Shares		Average		Average	Intrinsic
				Exercise Price		Remaining	Value
						Contractual
						Life
	Outstanding at March 2, 2013	1,362,373		$	15.89
	Awards exercised	(302,670	)	20.64
	Awards canceled	(8,376	)	19.4
	Outstanding at November 30, 2013	1,051,327		$	14.51	5.1 Years	$	22,406,495
	Vested or expected to vest at November 30, 2013	1,051,327		$	14.51	5.1 Years	$	22,406,495
	Exercisable at November 30, 2013	901,156		$	15.54	4.6 Years	$	18,279,796
Nonvested share award transactions	'
	The following table summarizes the nonvested share award transactions, including nonvested share units, for the nine months ended November 30, 2013:
		Nonvested Shares and Units
		Number of		Weighted
		Shares and		Average
		Units		Grant Date
				Fair Value
	Nonvested at March 2, 2013	831,573		$	13.17
	Granted	155,471		26.36
	Vested	(336,933	)	13.04
	Canceled(1)	(78,797	)	13.8
	Nonvested at November 30, 2013(2)	571,314		$	16.75
	-1	Includes 75,547 of nonvested share units canceled under the fiscal 2011-2013 performance period because Apogee performed below target level for that performance period. Nonvested share units of 174,353 (at target) were previously granted in fiscal 2011 for this performance period.
	-2	Includes a total of 117,765 nonvested share units granted and outstanding at target level for the fiscal 2012-2014 performance period.

Earnings_per_Share_Tables

Earnings per Share (Tables)	9 Months Ended
	Nov. 30, 2013
Earnings Per Share [Abstract]	'
Reconciliation of basic and diluted earnings per share	'
	The following table presents a reconciliation of the denominators used in the computation of basic and diluted earnings per share:
		Three Months Ended				Nine Months Ended
	(In thousands, except per share data)	November 30,		December 1,		November 30,		December 1,
		2013		2012		2013		2012
	Basic earnings per share – weighted common shares outstanding	28,483		28,029		28,439		27,913
	Weighted average effect of nonvested share grants and assumed exercise of stock options	893		803		869		584
	Diluted earnings per share – weighted common shares and potential common shares outstanding	29,376		28,832		29,308		28,497
	Earnings per share – basic	$	0.34	$	0.29	$	0.7	$	0.53
	Earnings per share – diluted	0.33		0.28		0.68		0.52
	Stock options excluded from the calculation of earnings per share because the exercise price was greater than the average market price of the common shares	—		529		—		235

Inventories_Tables

Inventories (Tables)	9 Months Ended
	Nov. 30, 2013
Inventory Disclosure [Abstract]	'
Components of inventories	'
	(In thousands)	November 30,		March 2,
		2013		2013
	Raw materials	$	17,770	$	11,834
	Work-in-process	11,699		7,754
	Finished goods	14,952		13,397
	Costs and earnings in excess of billings on uncompleted contracts	2,081		3,067
	Total inventories	$	46,502	$	36,052

Marketable_Securities_Tables

Marketable Securities (Tables)	9 Months Ended
	Nov. 30, 2013
Marketable Securities [Abstract]	'
Amortized cost, gross unrealized gains and losses, and estimated fair values of investments available for sale	'
	The amortized cost, gross unrealized gains and losses, and estimated fair values of investments available for sale at November 30, 2013 and March 2, 2013, were as follows:
	(In thousands)	Amortized Cost		Gross Unrealized Gains			Gross Unrealized Losses			Estimated
										Fair
										Value
	November 30, 2013
	Municipal bonds	$	14,175	$	48		$	(431	)	$	13,792
	Total investments	$	14,175	$	48		$	(431	)	$	13,792
	March 2, 2013
	Municipal bonds	$	38,927	$	127		$	(240	)	$	38,814
	Total investments	$	38,927	$	127		$	(240	)	$	38,814
Schedule of length of time that available-for-sale securities were in continuous unrealized loss positions	'
	The following table presents the length of time that available-for-sale securities were in continuous unrealized loss positions, but were not deemed to be other than temporarily impaired, as of November 30, 2013:
		Less Than 12 Months					Greater Than or Equal  to						Total
							12 Months
	(In thousands)	Fair Value		Unrealized Losses			Fair Value			Unrealized Losses			Fair Value		Unrealized Losses
	Municipal bonds	$	6,495	$	(202	)	$	1,021		$	(229	)	$	7,516	$	(431	)
	Total investments	$	6,495	$	(202	)	$	1,021		$	(229	)	$	7,516	$	(431	)
Schedule of amortized cost and estimated fair values of investments by contractual maturity	'
	The amortized cost and estimated fair values of investments at November 30, 2013, by contractual maturity, are shown below. Expected maturities may differ from contractual maturities as borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.
	(In thousands)	Amortized Cost		Estimated Market Value
	Due within one year	$	2,688	$	2,689
	Due after one year through five years	2,720		2,743
	Due after five years through 10 years	7,451		7,272
	Due after 10 years through 15 years	1,250		1,021
	Due beyond 15 years	66		67
	Total	$	14,175	$	13,792

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	9 Months Ended
	Nov. 30, 2013
Fair Value Disclosures [Abstract]	'
Financial assets and liabilities measured at fair value	'
	Financial assets and liabilities measured at fair value as of November 30, 2013 and March 2, 2013, are summarized below:
	(In thousands)	Quoted Prices in		Other		Unobservable		Total Fair
		Active Markets		Observable		Inputs		Value
		(Level 1)		Inputs		(Level 3)
				(Level 2)
	November 30, 2013
	Cash equivalents
	Money market funds	$	9,147	$	—	$	—	$	9,147
	Total cash equivalents	9,147		—		—		9,147
	Available for sale securities
	Municipal bonds	$	—	$	13,792	$	—	$	13,792
	Total available for sale securities	—		13,792		—		13,792
	Restricted investments
	Money market funds	$	23,678	$	—	$	—	$	23,678
	Total restricted investments	23,678		—		—		23,678
	Mutual fund investments
	Mutual funds	$	841	$	—	$	—	$	841
	Total mutual fund investments	841		—		—		841
	Foreign currency instruments
	Foreign currency instruments	$	—	$	205	$	—	$	205
	Total foreign currency instruments	$	—	$	205	$	—	$	205
	Total assets at fair value	$	33,666	$	13,997	$	—	$	47,663
	March 2, 2013
	Cash equivalents
	Money market funds	$	17,639	$	—	$	—	$	17,639
	Total cash equivalents	17,639		—		—		17,639
	Available for sale securities
	Municipal bonds	$	—	$	38,814	$	—	$	38,814
	Total available for sale securities	—		38,814		—		38,814
	Restricted investments
	Money market funds	$	26,443	$	—	$	—	$	26,443
	Total restricted investments	26,443		—		—		26,443
	Mutual fund investments
	Mutual funds	$	251	$	—	$	—	$	251
	Total mutual fund investments	251		—		—		251
	Total assets at fair value	$	44,333	$	38,814	$	—	$	83,147
	Foreign currency instruments
	Foreign currency instruments	$	—	$	405	$	—	$	405
	Total liabilities at fair value	$	—	$	405	$	—	$	405

Acquisitions_Tables

Acquisitions (Tables)	9 Months Ended
	Nov. 30, 2013
Business Combinations [Abstract]	'
Schedule of Business Acquisitions, by Acquisition [Table Text Block]	'
	The preliminary purchase price allocation is based on the estimated fair value of assets acquired and liabilities assumed and have been allocated as follows:
	(In thousands)	5-Nov-13
	Current assets	$	17,168
	Property, plant and equipment	8,255
	Goodwill	31,017
	Current liabilities	(5,634		)
	Net assets acquired	$	50,806
Business Acquisition, Pro Forma Information [Table Text Block]	'
	The following pro forma consolidated condensed financial results of operations for the three and nine-months ended November 30, 2013 and December 1, 2012 are presented as if the acquisition had been completed at the beginning of fiscal year 2013:
		Three Months Ended					Nine Months Ended
	(In thousands, except per share data)	November 30, 2013			December 1, 2012		November 30, 2013		December 1, 2012
	Net sales	$	210,613		$	207,359	$	595,451	$	563,579
	Net income	10,595			10,028		22,516		18,439
	Earnings per share
	Basic	$	0.37		$	0.36	$	0.79	$	0.66
	Diluted	0.36			0.35		0.77		0.65

Goodwill_and_Other_Identifiabl1

Goodwill and Other Identifiable Intangible Assets (Tables)	9 Months Ended
	Nov. 30, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Schedule of goodwill attributable to each business segment	'
	The carrying amount of goodwill attributable to each business segment as of the nine months ended November 30, 2013 is detailed below, including estimated goodwill for the Alumicor acquisition.
	(In thousands)	Architectural Glass			Architectural Services			Architectural Framing Systems			Large-Scale		Total
											Optical
	Balance at March 3, 2012	$	27,277		$	1,120		$	22,663		$	10,557	$	61,617
	Foreign currency translation	(275		)	—			—			—		(275		)
	Balance at March 2, 2013	27,002			1,120			22,663			10,557		61,342
	Goodwill acquired	—			—			31,017			—		31,017
	Foreign currency translation	(223		)	—			(627		)	—		(850		)
	Balance at November 30, 2013	$	26,779		$	1,120		$	53,053		$	10,557	$	91,509
Schedule of finite lived intangible assets	'
	The Company’s identifiable intangible assets with finite lives are being amortized over their estimated useful lives and were as follows:
		30-Nov-13
	(In thousands)	Gross			Accumulated			Foreign			Net
		Carrying			Amortization			Currency
		Amount						Translation
	Debt issue costs	$	3,405		$	(2,323	)	$	—		$	1,082
	Non-compete agreements	6,767			(6,227		)	(22		)	518
	Customer relationships	15,354			(10,238		)	(194		)	4,922
	Purchased intellectual property	8,566			(2,427		)	(151		)	5,988
	Total	$	34,092		$	(21,215	)	$	(367	)	$	12,510
		March 2, 2013
	(In thousands)	Gross			Accumulated			Foreign			Net
		Carrying			Amortization			Currency
		Amount						Translation
	Debt issue costs	$	3,556		$	(2,209	)	$	—		$	1,347
	Non-compete agreements	6,824			(6,124		)	(38		)	662
	Customer relationships	15,628			(9,541		)	(266		)	5,821
	Purchased intellectual property	8,210			(2,169		)	(196		)	5,845
	Total	$	34,218		$	(20,043	)	$	(500	)	$	13,675
Schedule of estimated future amortization expense for identifiable intangible assets	'
	At November 30, 2013, the estimated future amortization expense for identifiable intangible assets, excluding estimated amortization expense for Alumicor, for the remainder of fiscal 2014 and all of the following four fiscal years is as follows:
	(In thousands)	Remainder			Fiscal			Fiscal			Fiscal		Fiscal
		of Fiscal			2015			2016			2017		2018
		2014
	Estimated amortization expense	$	783		$	1,693		$	1,346		$	1,198	$	1,145

Employee_Benefit_Plans_Tables

Employee Benefit Plans (Tables)	9 Months Ended
	Nov. 30, 2013
Compensation and Retirement Disclosure [Abstract]	'
Components of net periodic benefit cost	'
	Components of net periodic benefit cost for the plans for the three and nine-month periods ended November 30, 2013 and December 1, 2012, were as follows:
		Three Months Ended						Nine Months Ended
	(In thousands)	November 30,			December 1,			November 30,			December 1,
		2013			2012			2013			2012
	Interest cost	$	134		$	142		$	402		$	426
	Expected return on assets	(46		)	(44		)	(138		)	(132		)
	Amortization of unrecognized net loss	41			53			123			159
	Net periodic benefit cost	$	129		$	151		$	387		$	453

Commitments_and_Contingent_Lia1

Commitments and Contingent Liabilities (Tables)	9 Months Ended
	Nov. 30, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Future minimum rental payments under noncancelable operating leases	'
	Future minimum rental payments under non-cancelable operating leases are:
	(In thousands)	Remainder			Fiscal			Fiscal		Fiscal		Fiscal		Thereafter		Total
		of Fiscal			2015			2016		2017		2018
		2014
	Total minimum payments	$	2,982		$	8,895		$	8,377	$	6,642	$	5,292	$	9,038	$	41,226
Guarantees and warranties	'
	The Company’s warranty and claim accruals are detailed below.
		Nine Months Ended
	(In thousands)	November 30,			December 1,
		2013			2012
	Balance at beginning of period	$	8,323		$	7,210
	Additional accruals	4,550			3,197
	Claims paid	(2,426		)	(2,185		)
	Balance at end of period	$	10,447		$	8,222

Segment_Information_Tables

Segment Information (Tables)	9 Months Ended
	Nov. 30, 2013
Segment Reporting [Abstract]	'
Sales and operating income data	'
	The following table presents sales and operating income data for the Company’s four reporting segments, and on a consolidated basis, for the three and nine months ended November 30, 2013, as compared to the corresponding periods a year ago:
		Three Months Ended						Nine Months Ended
	(In thousands)	November 30,			December 1,			November 30,			December 1,
		2013			2012			2013			2012
	Net Sales from operations
	Architectural Glass	$	73,365		$	74,921		$	218,142		$	197,264
	Architectural Services	51,167			49,125			139,820			134,696
	Architectural Framing Systems	58,981			51,605			152,877			146,182
	Large-Scale Optical	22,699			21,648			61,917			60,477
	Intersegment eliminations	(6,782		)	(6,883		)	(15,728		)	(18,129		)
	Net sales	$	199,430		$	190,416		$	557,028		$	520,490
	Operating Income (Loss) from operations
	Architectural Glass	$	1,641		$	461		$	3,782		$	(3,963	)
	Architectural Services	351			(196		)	(1,401		)	(3,794		)
	Architectural Framing Systems	5,782			5,573			13,026			14,735
	Large-Scale Optical	6,058			6,557			16,072			17,021
	Corporate and other	(1,125		)	(984		)	(3,299		)	(2,717		)
	Operating income	$	12,707		$	11,411		$	28,180		$	21,282

StockBased_Compensation_Detail

Stock-Based Compensation (Details 1) (USD $)	9 Months Ended
	Nov. 30, 2013	Nov. 30, 2013
Award transactions on stock options	'	'
Outstanding, Beginning	1,362,373	'
Outstanding shares awards exercised	-302,670	'
Outstanding shares awards canceled	-8,376	'
Outstanding, Ending	1,051,327	'
Outstanding shares vested or expected to vest	'	1,051,327
Outstanding shares exercisable	'	901,156
Award transactions on stock options, Weighted Average Exercise Price [Roll Forward]	'	'
Weighted average exercise price, Beginning	$15.89	'
Weighted average exercise price, Awards exercised	$20.64	'
Weighted average exercise price, Awards canceled	$19.40	'
Weighted average exercise price, Ending	$14.51	'
Weighted average exercise price, Vested or expected to vest	'	$14.51
Weighted average exercise price, Exercisable	'	$15.54
Weighted average remaining contractual life, Outstanding	'5 years 1 month 0 days	'
Weighted average remaining contractual life, Vested of expected to vest	'5 years 1 month 0 days	'
Weighted average remaining contractual life, Exercisable	'4 years 7 months 0 days	'
Aggregate intrinsic value, Outstanding	'	$22,406,495
Aggregate intrinsic value, Vested or expected to vest	'	22,406,495
Aggregate intrinsic value, Exercisable	'	$18,279,796

StockBased_Compensation_Detail1

Stock-Based Compensation (Details 2) (USD $)	9 Months Ended
	Nov. 30, 2013	Mar. 02, 2013
Nonvested share award transactions	'	'
Number of shares, Granted	155,471	'
Number of shares, Vested	-336,933	'
Number of shares, Canceled	-78,797	'
Nonvested Number, Ending	571,314	831,573
Nonvested share award transactions, Weighted Average Grant Date Fair Value [Roll Forward]	'	'
Weighted average grant date fair value, Granted	$26.36	'
Weighted average grant date fair value, Vested	$13.04	'
Weighted average grant date fair value, Canceled	$13.80	'
Weighted average grant date fair value, Ending	$16.75	$13.17

StockBased_Compensation_Detail2

Stock-Based Compensation (Details Textual) (USD $)	9 Months Ended
In Thousands, except Share data, unless otherwise specified	Nov. 30, 2013	Dec. 01, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Share-based Compensation	$3,471	$3,514
Total unrecognized compensation related to stock options awards	300	'
Cash proceeds from exercise of stock options	2,000	1,200
Aggregate intrinsic value of securities	2,400	1,800
Performance Shares cancelled	75,547	'
Number of performance share units granted	174,353	'
Number of performance share units granted and outstanding	117,765	'
Total unrecognized compensation cost related to nonvested share	5,900	'
Stock Options [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Weighted average period, Nonvested	'9 months	'
Restricted Stock [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Weighted average period, Nonvested	'23 months	'
Total fair value of shares vested	$8,500	'

Earnings_per_Share_Details

Earnings per Share (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Nov. 30, 2013	Dec. 01, 2012	Nov. 30, 2013	Dec. 01, 2012
Reconciliation of basic and diluted earnings per share	'	'	'	'
Basic earnings per share - weighted common shares outstanding	28,483	28,029	28,439	27,913
Incremental Common Shares Attributable to Share-based Payment Arrangements	893	803	869	584
Weighted Average Number of Shares Outstanding, Diluted	29,376	28,832	29,308	28,497
Earnings per share - basic	$0.34	$0.29	$0.70	$0.53
Earnings per share - diluted	$0.33	$0.28	$0.68	$0.52
Stock options excluded from the calculation of earnings per share because the exercise price was greater than the average market price of the common shares	0	529	0	235

Inventories_Details

Inventories (Details) (USD $)	Nov. 30, 2013	Mar. 02, 2013
In Thousands, unless otherwise specified
Components of inventories	'	'
Raw materials	$17,770	$11,834
Work-in-process	11,699	7,754
Finished goods	14,952	13,397
Costs and earnings in excess of billings on uncompleted contracts	2,081	3,067
Total inventories	$46,502	$36,052

Marketable_Securities_Details

Marketable Securities (Details) (USD $)	Nov. 30, 2013	Mar. 02, 2013
In Thousands, unless otherwise specified
Amortized cost, gross unrealized gains and losses, and estimated fair values of investments available for sale	'	'
Amortized Cost	$14,175	$38,927
Gross Unrealized Gains	48	127
Gross Unrealized Losses	-431	-240
Estimated Market Value, Total	13,792	38,814
Municipal bonds [Member]	'	'
Amortized cost, gross unrealized gains and losses, and estimated fair values of investments available for sale	'	'
Amortized Cost	14,175	38,927
Gross Unrealized Gains	48	127
Gross Unrealized Losses	-431	-240
Estimated Market Value, Total	$13,792	$38,814

Marketable_Securities_Details_

Marketable Securities (Details 1) (USD $)	Nov. 30, 2013
In Thousands, unless otherwise specified
Schedule of length of time that available-for-sale securities were in continuous unrealized loss positions	'
Less Than 12 Months, Fair Value	$6,495
Less Than 12 Months, Unrealized Losses	-202
Greater Than or Equal to 12 Months, Fair Value	1,021
Greater Than or Equal to 12 Months, Unrealized Losses	-229
Total Fair Value	7,516
Total Unrealized Losses	-431
Municipal bonds [Member]	'
Schedule of length of time that available-for-sale securities were in continuous unrealized loss positions	'
Less Than 12 Months, Fair Value	6,495
Less Than 12 Months, Unrealized Losses	-202
Greater Than or Equal to 12 Months, Fair Value	1,021
Greater Than or Equal to 12 Months, Unrealized Losses	-229
Total Fair Value	7,516
Total Unrealized Losses	($431)

Marketable_Securities_Details_1

Marketable Securities (Details 2) (USD $)	Nov. 30, 2013	Mar. 02, 2013
In Thousands, unless otherwise specified
Schedule of amortized cost and estimated fair values of investments by contractual maturity	'	'
Amortized Cost, Due within one year	$2,688	'
Amortized Cost, Due after one year through five years	2,720	'
Amortized Cost, Due after five years through 10 years	7,451	'
Amortized Cost, Due after 10 years through 15 years	1,250	'
Amortized Cost, Due beyond 15 years	66	'
Amortized Cost, Total	14,175	'
Estimated Market Value, Due within one year	2,689	'
Estimated Market Value, Due after one year through five years	2,743	'
Estimated Market Value, Due after five years through 10 years	7,272	'
Estimated Market Value, Due after 10 years through 15 years	1,021	'
Estimated Market Value, Due beyond 15 years	67	'
Estimated Market Value, Total	$13,792	$38,814

Marketable_Securities_Details_2

Marketable Securities (Details Textual) (USD $)	Nov. 30, 2013	Mar. 02, 2013
In Thousands, unless otherwise specified
Marketable Securities (Textual) [Abstract]	'	'
Investments, Total	$13,800	'
Short-term available for sale securities	2,689	26,007
Available-for-sale Securities, Debt Securities, Noncurrent	11,103	12,807
Prism Assurance Ltd [Member]	'	'
Marketable Securities (Textual) [Abstract]	'	'
Investments, Total	$11,200	'

Fair_Value_Measurements_Detail

Fair Value Measurements (Details) (USD $)	Nov. 30, 2013	Mar. 02, 2013
In Thousands, unless otherwise specified
Cash equivalents	'	'
Total cash equivalents	$9,147	$17,639
Available for sale securities	'	'
Available-for-sale Securities	13,792	38,814
Restricted investments	'	'
Total restricted investments	23,678	26,443
Mutual fund investments	'	'
Total mutual fund investments	841	251
Derivative Instruments and Hedges, Assets [Abstract]	'	'
Foreign Currency Contract, Asset, Fair Value Disclosure	205	'
Total assets at fair value	47,663	83,147
Derivative Instruments and Hedges, Liabilities [Abstract]	'	'
Liabilities, Fair Value Disclosure	'	405
Money market funds [Member]	'	'
Cash equivalents	'	'
Total cash equivalents	9,147	17,639
Restricted investments	'	'
Total restricted investments	23,678	26,443
Municipal bonds [Member]	'	'
Available for sale securities	'	'
Available-for-sale Securities	13,792	38,814
Mutual funds [Member]	'	'
Mutual fund investments	'	'
Total mutual fund investments	841	251
Foreign Exchange Contract [Member]	'	'
Derivative Instruments and Hedges, Assets [Abstract]	'	'
Foreign Currency Contract, Asset, Fair Value Disclosure	205	'
Derivative Instruments and Hedges, Liabilities [Abstract]	'	'
Foreign Currency Contracts, Liability, Fair Value Disclosure	'	405
Quoted Prices in Active Markets (Level 1) [Member]	'	'
Cash equivalents	'	'
Total cash equivalents	9,147	17,639
Available for sale securities	'	'
Available-for-sale Securities	0	0
Restricted investments	'	'
Total restricted investments	23,678	26,443
Mutual fund investments	'	'
Total mutual fund investments	841	251
Derivative Instruments and Hedges, Assets [Abstract]	'	'
Foreign Currency Contract, Asset, Fair Value Disclosure	0	'
Total assets at fair value	33,666	44,333
Derivative Instruments and Hedges, Liabilities [Abstract]	'	'
Liabilities, Fair Value Disclosure	'	0
Quoted Prices in Active Markets (Level 1) [Member] | Money market funds [Member]	'	'
Cash equivalents	'	'
Total cash equivalents	9,147	17,639
Restricted investments	'	'
Total restricted investments	23,678	26,443
Quoted Prices in Active Markets (Level 1) [Member] | Municipal bonds [Member]	'	'
Available for sale securities	'	'
Available-for-sale Securities	0	0
Quoted Prices in Active Markets (Level 1) [Member] | Mutual funds [Member]	'	'
Mutual fund investments	'	'
Total mutual fund investments	841	251
Quoted Prices in Active Markets (Level 1) [Member] | Foreign Exchange Contract [Member]	'	'
Derivative Instruments and Hedges, Assets [Abstract]	'	'
Foreign Currency Contract, Asset, Fair Value Disclosure	0	'
Derivative Instruments and Hedges, Liabilities [Abstract]	'	'
Foreign Currency Contracts, Liability, Fair Value Disclosure	'	0
Other Observable Inputs (Level 2) [Member]	'	'
Cash equivalents	'	'
Total cash equivalents	0	0
Available for sale securities	'	'
Available-for-sale Securities	13,792	38,814
Restricted investments	'	'
Total restricted investments	0	0
Mutual fund investments	'	'
Total mutual fund investments	0	0
Derivative Instruments and Hedges, Assets [Abstract]	'	'
Foreign Currency Contract, Asset, Fair Value Disclosure	205	'
Total assets at fair value	13,997	38,814
Derivative Instruments and Hedges, Liabilities [Abstract]	'	'
Liabilities, Fair Value Disclosure	'	405
Other Observable Inputs (Level 2) [Member] | Money market funds [Member]	'	'
Cash equivalents	'	'
Total cash equivalents	0	0
Restricted investments	'	'
Total restricted investments	0	0
Other Observable Inputs (Level 2) [Member] | Municipal bonds [Member]	'	'
Available for sale securities	'	'
Available-for-sale Securities	13,792	38,814
Other Observable Inputs (Level 2) [Member] | Mutual funds [Member]	'	'
Mutual fund investments	'	'
Total mutual fund investments	0	0
Other Observable Inputs (Level 2) [Member] | Foreign Exchange Contract [Member]	'	'
Derivative Instruments and Hedges, Assets [Abstract]	'	'
Foreign Currency Contract, Asset, Fair Value Disclosure	205	'
Derivative Instruments and Hedges, Liabilities [Abstract]	'	'
Foreign Currency Contracts, Liability, Fair Value Disclosure	'	405
Unobservable Inputs (Level 3) [Member]	'	'
Cash equivalents	'	'
Total cash equivalents	0	0
Available for sale securities	'	'
Available-for-sale Securities	0	0
Restricted investments	'	'
Total restricted investments	0	0
Mutual fund investments	'	'
Total mutual fund investments	0	0
Derivative Instruments and Hedges, Assets [Abstract]	'	'
Foreign Currency Contract, Asset, Fair Value Disclosure	0	'
Total assets at fair value	0	0
Derivative Instruments and Hedges, Liabilities [Abstract]	'	'
Liabilities, Fair Value Disclosure	'	0
Unobservable Inputs (Level 3) [Member] | Money market funds [Member]	'	'
Cash equivalents	'	'
Total cash equivalents	0	0
Restricted investments	'	'
Total restricted investments	0	0
Unobservable Inputs (Level 3) [Member] | Municipal bonds [Member]	'	'
Available for sale securities	'	'
Available-for-sale Securities	0	0
Unobservable Inputs (Level 3) [Member] | Mutual funds [Member]	'	'
Mutual fund investments	'	'
Total mutual fund investments	0	0
Unobservable Inputs (Level 3) [Member] | Foreign Exchange Contract [Member]	'	'
Derivative Instruments and Hedges, Assets [Abstract]	'	'
Foreign Currency Contract, Asset, Fair Value Disclosure	0	'
Derivative Instruments and Hedges, Liabilities [Abstract]	'	'
Foreign Currency Contracts, Liability, Fair Value Disclosure	'	$0

Fair_Value_Measurements_Detail1

Fair Value Measurements (Details Textual) (USD $)	Nov. 30, 2013	Mar. 02, 2013
In Thousands, unless otherwise specified
Fair Value Disclosures [Abstract]	'	'
Short-term available for sale securities	$2,689	$26,007
Available-for-sale Securities, Debt Securities, Noncurrent	11,103	12,807
Restricted Cash and Cash Equivalents, Noncurrent	23,678	4,639
Mutual fund investments	$800	'

Acquisitions_Details

Acquisitions (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Nov. 30, 2013	Dec. 01, 2012	Nov. 30, 2013	Nov. 05, 2013
			Alumicor Limited [Member]	Alumicor Limited [Member]
Business Acquisition [Line Items]	'	'	'	'
Business Acquisition, Purchase Price Allocation, Assets Acquired	'	'	'	$17,168
Business Acquisition, Purchase Price Allocation, Property, Plant and Equipment	'	'	'	8,255
Business Acquisition, Purchase Price Allocation, Goodwill Amount	'	'	'	31,017
Business Acquisition, Purchase Price Allocation, Current Liabilities	'	'	'	-5,634
Payments to Acquire Businesses, Net of Cash Acquired	$52,806	$15	$50,806	'

Acquisition_Details_1

Acquisition (Details 1) (Alumicor Limited [Member], USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Nov. 30, 2013	Dec. 01, 2012	Nov. 30, 2013	Dec. 01, 2012
Alumicor Limited [Member]	'	'	'	'
Business Acquisition [Line Items]	'	'	'	'
Business Acquisition, Pro Forma Revenue	$210,613	$207,359	$595,451	$563,579
Business Acquisition, Pro Forma Net Income (Loss)	$10,595	$10,028	$22,516	$18,439
Business Acquisition, Pro Forma Earnings Per Share, Basic	$0.37	$0.36	$0.79	$0.66
Business Acquisition, Pro Forma Earnings Per Share, Diluted	$0.36	$0.35	$0.77	$0.65

Acquisition_Details_Textual

Acquisition (Details Textual) (USD $)	3 Months Ended	9 Months Ended
In Thousands, unless otherwise specified	Nov. 30, 2013	Nov. 30, 2013	Nov. 05, 2013
Business Combinations [Abstract]	'	'	'
Business Acquisition, Cost of Acquired Entity, Cash Paid	'	'	$52,400
Cash Acquired from Acquisition	'	1,600	'
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	4,800	'	'
Business Combination, Acquisition Related Costs	'	$500	'

Goodwill_and_Other_Identifiabl2

Goodwill and Other Identifiable Intangible Assets (Details) (USD $)	9 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Nov. 30, 2013	Mar. 02, 2013
Schedule of goodwill attributable to each business segment	'	'
Goodwill, Beginning	$61,342	$61,617
Goodwill, Acquired During Period	31,017	'
Foreign currency translation	-850	-275
Goodwill, Ending	91,509	61,342
Architectural Glass [Member]	'	'
Schedule of goodwill attributable to each business segment	'	'
Goodwill, Beginning	27,002	27,277
Goodwill, Acquired During Period	0	'
Foreign currency translation	-223	-275
Goodwill, Ending	26,779	27,002
Architectural Services segment [Member]	'	'
Schedule of goodwill attributable to each business segment	'	'
Goodwill, Beginning	1,120	1,120
Goodwill, Acquired During Period	0	'
Foreign currency translation	0	0
Goodwill, Ending	1,120	1,120
Architectural Framing Systems Segment [Member]	'	'
Schedule of goodwill attributable to each business segment	'	'
Goodwill, Beginning	22,663	22,663
Goodwill, Acquired During Period	31,017	'
Foreign currency translation	627	0
Goodwill, Ending	53,053	22,663
Large-Scale Optical [Member]	'	'
Schedule of goodwill attributable to each business segment	'	'
Goodwill, Beginning	10,557	10,557
Goodwill, Acquired During Period	0	'
Foreign currency translation	0	0
Goodwill, Ending	$10,557	$10,557

Goodwill_and_Other_Identifiabl3

Goodwill and Other Identifiable Intangible Assets (Details 1) (USD $)	Nov. 30, 2013	Mar. 02, 2013
In Thousands, unless otherwise specified
Schedule of finite lived identifiable intangible assets	'	'
Gross Carrying Amount	$34,092	$34,218
Accumulated Amortization	-21,215	-20,043
Foreign Currency Translation	-367	-500
Net	12,510	13,675
Debt issue costs [Member]	'	'
Schedule of finite lived identifiable intangible assets	'	'
Gross Carrying Amount	3,405	3,556
Accumulated Amortization	-2,323	-2,209
Foreign Currency Translation	0	0
Net	1,082	1,347
Noncompete Agreements [Member]	'	'
Schedule of finite lived identifiable intangible assets	'	'
Gross Carrying Amount	6,767	6,824
Accumulated Amortization	-6,227	-6,124
Foreign Currency Translation	-22	-38
Net	518	662
Customer Relationships [Member]	'	'
Schedule of finite lived identifiable intangible assets	'	'
Gross Carrying Amount	15,354	15,628
Accumulated Amortization	-10,238	-9,541
Foreign Currency Translation	-194	-266
Net	4,922	5,821
Purchased intellectual property [Member]	'	'
Schedule of finite lived identifiable intangible assets	'	'
Gross Carrying Amount	8,566	8,210
Accumulated Amortization	-2,427	-2,169
Foreign Currency Translation	-151	-196
Net	$5,988	$5,845

Goodwill_and_Other_Identifiabl4

Goodwill and Other Identifiable Intangible Assets (Details 2) (USD $)	Nov. 30, 2013
In Thousands, unless otherwise specified
Schedule of estimated future amortization expense for identifiable intangible assets	'
Estimated amortization expense, Remainder of Fiscal 2014	$783
Estimated amortization expense, Fiscal 2015	1,693
Estimated amortization expense, Fiscal 2016	1,346
Estimated amortization expense, Fiscal 2017	1,198
Estimated amortization expense, Fiscal 2018	$1,145

Goodwill_and_Other_Identifiabl5

Goodwill and Other Identifiable Intangible Assets (Details Textual) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Nov. 30, 2013	Dec. 01, 2012
Goodwill and Other Identifiable Intangible Assets (Textual) [Abstract]	'	'
Amortization expense on identifiable intangible assets	$1,300	$2,000
Write off of Deferred Debt Issuance Cost	$200	'

Debt_Details

Debt (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Nov. 30, 2013	Dec. 01, 2012	Mar. 02, 2013
Debt (Textual) [Abstract]	'	'	'
Line of Credit Facility, Maximum Borrowing Capacity	$100,000	'	'
Line of Credit Facility, Expiration Date	20-Nov-18	'	'
Line of Credit Facility, Previous Expiration Date	19-Oct-17	'	'
Line of Credit Facility, Amount Outstanding	0	'	0
Minimum net worth required	280,400	'	'
Net Worth	347,200	'	'
Adjusted debt-to-EBITDA ratio	0.32	'	'
Decrease in non-credit facility debt	25,000	'	'
Excess of non credit facility debt on unrestricted cash balances, cash equivalents and short-term marketable securities available for sale	15,000	'	'
Repayments of Other Debt	10,000	'	'
Write off of Deferred Debt Issuance Cost	200	'	'
Interest payments	500	600	'
Maximum [Member]	'	'	'
Debt (Textual) [Abstract]	'	'	'
Adjusted debt-to-EBITDA ratio	3	'	'
Industrial Revenue Bonds [Member]	'	'	'
Debt (Textual) [Abstract]	'	'	'
Debt	20,400	'	'
Notes Payable, Other Payables [Member]	'	'	'
Debt (Textual) [Abstract]	'	'	'
Debt	300	'	'
Letter of Credit [Member]	'	'	'
Debt (Textual) [Abstract]	'	'	'
Line of Credit Facility, Maximum Borrowing Capacity	50,000	'	'
Line of Credit Facility Maximum Capacity under Previous Facility	$60,000	'	'

Employee_Benefit_Plans_Details

Employee Benefit Plans (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Nov. 30, 2013	Dec. 01, 2012	Nov. 30, 2013	Dec. 01, 2012
Components of net periodic benefit cost	'	'	'	'
Interest cost	$134	$142	$402	$426
Expected return on assets	-46	-44	-138	-132
Amortization of unrecognized net loss	41	53	123	159
Net periodic benefit cost	$129	$151	$387	$453

Income_Taxes_Details

Income Taxes (Details) (USD $)	Nov. 30, 2013	Mar. 02, 2013
In Thousands, unless otherwise specified
Income Tax Disclosure [Abstract]	'	'
Liability for Uncertain Tax Positions, Noncurrent	$5,970	$6,765
UnrecognizedTaxBenefitsReductionsResultingFromSettlementsWithTaxingAuthoritiesAndLapseOfApplicableStatuteOfLimitations	$600	'

Commitments_and_Contingent_Lia2

Commitments and Contingent Liabilities (Details) (USD $)	Nov. 30, 2013
In Thousands, unless otherwise specified
Future minimum rental payments under noncancelable operating leases	'
Total minimum payments, Remainder of Fiscal 2014	$2,982
Total minimum payments, Fiscal 2015	8,895
Total minimum payments, Fiscal 2016	8,377
Total minimum payments, Fiscal 2017	6,642
Total minimum payments, Fiscal 2018	5,292
Total minimum payments, Thereafter	9,038
Total	$41,226

Commitments_and_Contingent_Lia3

Commitments and Contingent Liabilities (Details 1) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Nov. 30, 2013	Dec. 01, 2012
Guarantees and warranties	'	'
Balance at beginning of period	$8,323	$7,210
Additional accruals	4,550	3,197
Claims paid	-2,426	-2,185
Balance at end of period	$10,447	$8,222

Commitments_and_Contingent_Lia4

Commitments and Contingent Liabilities (Details Textual) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Nov. 30, 2013	Dec. 01, 2012
Commitments and Contingencies Disclosure [Abstract]	'	'
Company's backlog bonded by performance bonds	$83,200	'
Face value of performance bonds	240,300	'
Total value of letter of credit	23,500	'
Line of Credit Facility, Maximum Borrowing Capacity	100,000	'
Purchase obligations	75,400	'
Derivative, Notional Amount	18,600	'
Derivative Asset, Fair Value, Net	300	'
Proceeds from new markets tax credit transaction, net of deferred costs	7,752	0
Gross proceeds from new markets tax credits	10,700	'
Deferred Costs	$3,000	'

Segment_Information_Segment_In

Segment Information Segment Information (Details Textual)	9 Months Ended
	Nov. 30, 2013
	Reportable_Segment
	Segment
Segment Information [Abstract]	'
Number of Reportable Segments	4
Number of Operating Segments	4

Segment_Information_Details

Segment Information (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Nov. 30, 2013	Dec. 01, 2012	Nov. 30, 2013	Dec. 01, 2012
Sales and operating income data	'	'	'	'
Net sales	$199,430	$190,416	$557,028	$520,490
Operating income (loss)	12,707	11,411	28,180	21,282
Architectural Glass [Member]	'	'	'	'
Sales and operating income data	'	'	'	'
Net sales	73,365	74,921	218,142	197,264
Operating income (loss)	1,641	461	3,782	-3,963
Architectural Services segment [Member]	'	'	'	'
Sales and operating income data	'	'	'	'
Net sales	51,167	49,125	139,820	134,696
Operating income (loss)	351	-196	-1,401	-3,794
Architectural Framing Systems Segment [Member]	'	'	'	'
Sales and operating income data	'	'	'	'
Net sales	58,981	51,605	152,877	146,182
Operating income (loss)	5,782	5,573	13,026	14,735
Large-Scale Optical [Member]	'	'	'	'
Sales and operating income data	'	'	'	'
Net sales	22,699	21,648	61,917	60,477
Operating income (loss)	6,058	6,557	16,072	17,021
Intersegment eliminations [Member]	'	'	'	'
Sales and operating income data	'	'	'	'
Net sales	-6,782	-6,883	-15,728	-18,129
Corporate and other [Member]	'	'	'	'
Sales and operating income data	'	'	'	'
Operating income (loss)	($1,125)	($984)	($3,299)	($2,717)