Debt - Additional Information (Detail) (USD $)	3 Months Ended			3 Months Ended			3 Months Ended		3 Months Ended			1 Months Ended					1 Months Ended				1 Months Ended		3 Months Ended		1 Months Ended		3 Months Ended
	Jul. 01, 2011	Jun. 29, 2012	Mar. 31, 2012	Jun. 29, 2012 Bank Term Loan	Jul. 01, 2011 Bank Term Loan	Sep. 25, 2008 Private Bank Loan Agreement	Jun. 29, 2012 Private Bank Loan Agreement Bank Term Loan	Sep. 23, 2011 Private Bank Loan Agreement Bank Term Loan	Jun. 29, 2012 Private Bank Loan Agreement Line of Credit	Jun. 29, 2012 Silicon Valley Loan Agreement	Jan. 31, 2012 Silicon Valley Loan Agreement BasisPoint	Jan. 31, 2012 Silicon Valley Loan Agreement Period One	Jan. 31, 2012 Silicon Valley Loan Agreement Period Two	Jan. 31, 2012 Silicon Valley Loan Agreement Before First Anniversary of Term Loan	Jan. 31, 2012 Silicon Valley Loan Agreement After First but Before Second Anniversary of Term Loan	Jan. 31, 2012 Silicon Valley Loan Agreement After Second Anniversary of Term Loan	Jan. 31, 2012 Silicon Valley Loan Agreement Bank Term Loan	Jan. 31, 2012 Silicon Valley Loan Agreement Bank Term Loan Minimum	Jan. 31, 2012 Silicon Valley Loan Agreement Bank Term Loan Maximum	Jan. 31, 2012 Silicon Valley Loan Agreement Export Import Sublimit	Jan. 31, 2012 Silicon Valley Loan Agreement Export Import Sublimit Minimum	Jan. 31, 2012 Silicon Valley Loan Agreement Export Import Sublimit Maximum	Jun. 29, 2012 Michigan Economic Development Corporation Loan Agreement	Jul. 01, 2011 Michigan Economic Development Corporation Loan Agreement	Nov. 29, 2010 Picometrix Notes Robin Risser, COO,and Steve Williamson, CTO	Dec. 31, 2005 Picometrix Notes Robin Risser, COO,and Steve Williamson, CTO	Jun. 29, 2012 Picometrix Notes Robin Risser, COO,and Steve Williamson, CTO	Jul. 01, 2011 Picometrix Notes Robin Risser, COO,and Steve Williamson, CTO	Jun. 29, 2012 Michigan Economic Development Corporation Loan Agreement One	Jun. 29, 2012 Michigan Economic Development Corporation Loan Agreement Two
Debt Instrument [Line Items]
Line of Credit						$ 3,000,000					$ 5,000,000									$ 3,000,000
Bank term loan		916,000	1,000,000					1,000,000									1,000,000
Monthly principal payments of term loan							20,833
Additional interest above prime rate							0.50%		0.50%									1.00%	4.25%		0.50%	3.75%			2.00%	1.00%
Debt instrument maturity date							Oct. 01, 2015		Sep. 25, 2014																Sep. 01, 2012
Adjusted EBITDA												(1,250,000)	1
Liquidity ratio											2.25
Loan payment period																	3 years
Percentage of prepayment premium over amount outstanding														1.00%	0.50%	0.25%
Percentage of termination fee on amount outstanding											1.00%
Interest rate on loan										5.75%																			4.00%	4.00%
Interest rate on line of credit										5.25%
Line of credit outstanding										800,000
Company Borrowing capacity of line of credit										3,100,000
Term of the SVB loan agreement										3 years
Line of credit facility term										2 years
Interest payments during a period				16,000	20,000																		15,000	26,000			0	16,000
Maturity period for principal and accrued interest																													2014-11	2014-09
Aggregate principal amount																									1,400,500	2,900,500
Debt restructuring fee																									156,312
Percentage of debt restructuring fee																									11.00%
Payments to note holders	$ 75,000																										$ 728,735