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Segments of Business (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended		21 Months Ended
	Jun. 27, 2014	Jun. 28, 2013	Jun. 27, 2014	Jun. 28, 2013	Jun. 27, 2014	Sep. 27, 2013
Segment Reporting Information [Line Items]
Net sales	$ 137,133us-gaap_SalesRevenueNet	$ 129,772us-gaap_SalesRevenueNet	$ 340,506us-gaap_SalesRevenueNet	$ 349,146us-gaap_SalesRevenueNet
Operating profit (loss)	9,332us-gaap_OperatingIncomeLoss	16,133us-gaap_OperatingIncomeLoss	17,970us-gaap_OperatingIncomeLoss	30,297us-gaap_OperatingIncomeLoss
Total assets	308,731us-gaap_Assets	306,689us-gaap_Assets	308,731us-gaap_Assets	306,689us-gaap_Assets	308,731us-gaap_Assets	288,350us-gaap_Assets
Customer Concentration Risk [Member]
Segment Reporting Information [Line Items]
Number of customers that represent more than 10% of total nete sales					0
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales	(400)	(486)	(1,052)	(1,114)
Marine Electronics [Member]
Segment Reporting Information [Line Items]
Net sales	79,904	73,445	209,887	214,769
Operating profit (loss)	14,196	13,188	30,276	33,528
Total assets	129,037	125,868	129,037	125,868	129,037	111,459
Marine Electronics [Member] \| Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales	105	127	177	232
Outdoor Equipment [Member]
Segment Reporting Information [Line Items]
Net sales	15,729	14,802	35,071	33,312
Operating profit (loss)	(4,946)	2,061	(4,561)	2,017
Total assets	35,650	41,758	35,650	41,758	35,650	43,630
Outdoor Equipment [Member] \| Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales	21	20	36	46
Watercraft [Member]
Segment Reporting Information [Line Items]
Net sales	19,658	18,986	38,285	39,535
Operating profit (loss)	2,002	1,314	(29)	(910)
Total assets	32,981	39,770	32,981	39,770	32,981	27,810
Watercraft [Member] \| Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales	67	68	117	87
Diving [Member]
Segment Reporting Information [Line Items]
Net sales	21,599	22,304	56,849	61,124
Operating profit (loss)	1,561	1,901	2,315	3,982
Total assets	80,026	73,483	80,026	73,483	80,026	70,810
Diving [Member] \| Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales	207	271	722	749
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Net sales	243	235	414	406
Operating profit (loss)	(3,481)	(2,331)	(10,031)	(8,320)
Total assets	$ 31,037	$ 25,810	$ 31,037	$ 25,810	31,037	$ 34,641