Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 28, 2014	Sep. 27, 2013	Mar. 29, 2013
ASSETS
Cash and cash equivalents	$ 48,653	$ 55,694	$ 40,392
Accounts receivable, net	98,484us-gaap_AccountsReceivableNetCurrent	44,104us-gaap_AccountsReceivableNetCurrent	109,176us-gaap_AccountsReceivableNetCurrent
Inventories	85,089us-gaap_InventoryNet	76,363us-gaap_InventoryNet	85,192us-gaap_InventoryNet
Deferred income taxes	8,798us-gaap_DeferredTaxAssetsNetCurrent	7,869us-gaap_DeferredTaxAssetsNetCurrent	6,773us-gaap_DeferredTaxAssetsNetCurrent
Other current assets	6,384us-gaap_OtherAssetsCurrent	4,542us-gaap_OtherAssetsCurrent	6,491us-gaap_OtherAssetsCurrent
Total current assets	247,408us-gaap_AssetsCurrent	188,572us-gaap_AssetsCurrent	248,024us-gaap_AssetsCurrent
Property, plant and equipment, net of accumulated depreciation of $105,758, $103,314, and $102,165, respectively	45,198us-gaap_PropertyPlantAndEquipmentNet	43,394us-gaap_PropertyPlantAndEquipmentNet	38,480us-gaap_PropertyPlantAndEquipmentNet
Deferred income taxes	7,679us-gaap_DeferredTaxAssetsNetNoncurrent	8,039us-gaap_DeferredTaxAssetsNetNoncurrent	15,495us-gaap_DeferredTaxAssetsNetNoncurrent
Goodwill	21,137us-gaap_Goodwill	21,053us-gaap_Goodwill	20,907us-gaap_Goodwill
Other intangible assets, net	14,748	15,068	14,325
Other assets	12,359us-gaap_OtherAssetsNoncurrent	12,224us-gaap_OtherAssetsNoncurrent	11,274us-gaap_OtherAssetsNoncurrent
Total assets	348,529us-gaap_Assets	288,350us-gaap_Assets	348,505us-gaap_Assets
LIABILITIES AND SHAREHOLDERS' EQUITY
Short-term debt	150		52,000
Current maturities of long term debt	418us-gaap_LongTermDebtCurrent	539us-gaap_LongTermDebtCurrent	542us-gaap_LongTermDebtCurrent
Accounts payable	40,689us-gaap_AccountsPayableCurrent	26,466us-gaap_AccountsPayableCurrent	41,857us-gaap_AccountsPayableCurrent
Accrued liabilities:
Salaries, wages and benefits	10,413	17,702	11,475
Accrued warranty	4,614us-gaap_ProductWarrantyAccrual	5,214us-gaap_ProductWarrantyAccrual	5,280us-gaap_ProductWarrantyAccrual
Income taxes payable	4,215us-gaap_AccruedIncomeTaxesCurrent	1,300us-gaap_AccruedIncomeTaxesCurrent	4,168us-gaap_AccruedIncomeTaxesCurrent
Other	16,236us-gaap_OtherLiabilitiesCurrent	12,151us-gaap_OtherLiabilitiesCurrent	17,211us-gaap_OtherLiabilitiesCurrent
Total current liabilities	76,735us-gaap_LiabilitiesCurrent	63,372us-gaap_LiabilitiesCurrent	132,533us-gaap_LiabilitiesCurrent
Long-term debt, less current maturities	49,627us-gaap_LongTermDebtNoncurrent	7,794us-gaap_LongTermDebtNoncurrent	8,057us-gaap_LongTermDebtNoncurrent
Deferred income taxes	1,125	1,114	4,831
Retirement benefits	6,110	6,346	11,785
Other liabilities	13,558us-gaap_OtherLiabilitiesNoncurrent	12,056us-gaap_OtherLiabilitiesNoncurrent	10,934us-gaap_OtherLiabilitiesNoncurrent
Total liabilities	147,155us-gaap_Liabilities	90,682us-gaap_Liabilities	168,140us-gaap_Liabilities
Shareholders' equity:
Preferred stock: none issued
Capital in excess of par value	66,223us-gaap_AdditionalPaidInCapital	66,374us-gaap_AdditionalPaidInCapital	64,817us-gaap_AdditionalPaidInCapital
Retained earnings	115,141	112,144	102,001
Accumulated other comprehensive income	19,819	19,366	13,782
Treasury stock at cost, shares of Class A common stock: 12,523, 34,766, and 35,680 shares, respectively	(308)us-gaap_TreasuryStockValue	(715)us-gaap_TreasuryStockValue	(733)us-gaap_TreasuryStockValue
Total shareholders' equity	201,374us-gaap_StockholdersEquity	197,668us-gaap_StockholdersEquity	180,365us-gaap_StockholdersEquity
Total liabilities and shareholders' equity	348,529	288,350	348,505
Class A [Member]
Common stock:
Shares issued and outstanding	438	438	437
Class B [Member]
Common stock:
Shares issued and outstanding	$ 61	$ 61	$ 61

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Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).