Business Acquisitions - Allocation of Purchase Price of Assets Acquired and Liabilities Assumed Based on the Fair Value (Details) (USD $)			0 Months Ended	1 Months Ended								12 Months Ended
	Mar. 30, 2013	Mar. 31, 2012	Jun. 14, 2012 Eolite Systems	Sep. 30, 2010 PyroPhotonics Lasers, Inc	Sep. 30, 2010 Patents PyroPhotonics Lasers, Inc		Jun. 14, 2012 Developed technology Eolite Systems	Jun. 14, 2012 Customer relationships Eolite Systems	Jun. 14, 2012 Trademarks and backlog Eolite Systems	Sep. 30, 2010 In-process research and development PyroPhotonics Lasers, Inc		Mar. 30, 2013 Minimum	Mar. 30, 2013 Minimum Patents	Mar. 30, 2013 Maximum	Mar. 30, 2013 Maximum Patents
Business Acquisition [Line Items]
Investments			$ 285,000
Accounts receivable			113,000
Inventory			1,554,000	395,000
Prepaid expense and other assets			824,000	20,000
Property, plant and equipment			227,000	84,000
Acquired intangibles	9,100,000		5,539,000	3,600,000	410,000	[1]	5,000,000	400,000	100,000	3,204,000	[1]
Estimated useful life of intangible assets												1 year	10 years	9 years	17 years
Goodwill	7,889,000	4,014,000	3,875,000	4,014,000
Accounts payable and accrued liabilities			(1,157,000)	(52,000)
Short term debt			(1,794,000)
Total purchase price, net of cash acquired			9,466,000	8,075,000
Payments to Acquire Businesses, Net of Cash Acquired			9,700,000	8,100,000
Business Acquisition, Purchase Price Allocation, Goodwill Amount	4,000,000
Business Combination, Acquisition Related Costs			$ 900,000	$ 300,000
Discount rate used										25.60%

[1] See Note 11 “Acquired Intangible Assets” for additional discussion.