Note 5 - Debt (Details) (USD $)	1 Months Ended	6 Months Ended			0 Months Ended			12 Months Ended							0 Months Ended				0 Months Ended											1 Months Ended			1 Months Ended			3 Months Ended		6 Months Ended		12 Months Ended		1 Months Ended		3 Months Ended		6 Months Ended					1 Months Ended	0 Months Ended	1 Months Ended		0 Months Ended	1 Months Ended		0 Months Ended	1 Months Ended		0 Months Ended	1 Months Ended		1 Months Ended		0 Months Ended	3 Months Ended		6 Months Ended					3 Months Ended		6 Months Ended
	Jan. 31, 2012	Sep. 26, 2014	Sep. 27, 2013	Mar. 31, 2014	Jun. 06, 2014 Common Class A [Member]	Jun. 10, 2014 Common Class A [Member]	Jun. 12, 2014 Common Class A [Member]	Mar. 31, 2014 Equipment [Member]	Feb. 28, 2013 Private Placement [Member] Partners For Growth [Member]	Feb. 08, 2013 Private Placement [Member] Partners For Growth [Member]	Feb. 28, 2013 Private Placement [Member] Partners for Growth One [Member]	Feb. 08, 2013 Private Placement [Member] Partners for Growth One [Member]	Feb. 28, 2013 Private Placement [Member] Partners for Growth Two [Member]	Feb. 08, 2013 Private Placement [Member] Partners for Growth Two [Member]	Feb. 08, 2013 Partners For Growth [Member] Maximum [Member]	Feb. 14, 2013 Partners For Growth [Member]	Sep. 26, 2014 Partners for Growth One [Member]	Sep. 26, 2014 Partners for Growth Two [Member]	Nov. 10, 2014 Subsequent Event [Member] EBITDA is Less than One Dollar [Member] SVB and PFG Agreements [Member]	Nov. 10, 2014 Subsequent Event [Member] EBITDA is Less than One Dollar [Member] Partners For Growth [Member]	Nov. 10, 2014 Subsequent Event [Member] SVB and PFG Agreements [Member] Period One [Member]	Nov. 10, 2014 Subsequent Event [Member] SVB and PFG Agreements [Member] Period Two [Member]	Nov. 10, 2014 Subsequent Event [Member] SVB and PFG Agreements [Member] Period Three [Member]	Nov. 10, 2014 Subsequent Event [Member] SVB and PFG Agreements [Member]	Nov. 10, 2014 Subsequent Event [Member] Partners For Growth [Member]	Jun. 20, 2014 Fees Waived [Member] Silicon Valley Loan Agreement [Member]	Jun. 20, 2014 Fees Waived [Member] Partners For Growth [Member]	Jan. 31, 2012 Loans Payable [Member] Silicon Valley Loan Agreement [Member]	Jan. 31, 2012 Export Import Sublimit [Member] Silicon Valley Loan Agreement [Member]	Jun. 20, 2014 Line of Credit [Member] Silicon Valley Loan Agreement [Member] Minimum [Member]	Jun. 20, 2014 Line of Credit [Member] Silicon Valley Loan Agreement [Member] Maximum [Member]	Sep. 26, 2014 Line of Credit [Member] Silicon Valley Loan Agreement [Member]	Jun. 20, 2014 Bank Term Loan [Member] Silicon Valley Loan Agreement [Member] Minimum [Member]	Jun. 20, 2014 Bank Term Loan [Member] Silicon Valley Loan Agreement [Member] Maximum [Member]	Sep. 26, 2014 Bank Term Loan [Member] Silicon Valley Loan Agreement [Member]	Sep. 26, 2014 Capital Lease Obligations [Member]	Sep. 27, 2013 Capital Lease Obligations [Member]	Sep. 26, 2014 Capital Lease Obligations [Member]	Sep. 27, 2013 Capital Lease Obligations [Member]	Mar. 31, 2014 Capital Lease Obligations [Member]	Jan. 31, 2012 Silicon Valley Loan Agreement [Member] Line of Credit [Member]	Jan. 31, 2012 Silicon Valley Loan Agreement [Member] Period One [Member]	Jan. 31, 2012 Silicon Valley Loan Agreement [Member] Period Two [Member]	Sep. 26, 2014 Silicon Valley Loan Agreement [Member]	Sep. 27, 2013 Silicon Valley Loan Agreement [Member]	Sep. 26, 2014 Silicon Valley Loan Agreement [Member]	Sep. 27, 2013 Silicon Valley Loan Agreement [Member]	Apr. 30, 2014 Silicon Valley Loan Agreement [Member]	Feb. 10, 2014 Silicon Valley Loan Agreement [Member]	Jan. 31, 2012 Silicon Valley Loan Agreement [Member]	Jun. 20, 2014 SVB and PFG Agreements [Member] Period One [Member]	Feb. 10, 2014 SVB and PFG Agreements [Member] Period One [Member]	Apr. 30, 2014 SVB and PFG Agreements [Member] Period One [Member]	Jun. 20, 2014 SVB and PFG Agreements [Member] Period Two [Member]	Feb. 10, 2014 SVB and PFG Agreements [Member] Period Two [Member]	Apr. 30, 2014 SVB and PFG Agreements [Member] Period Two [Member]	Jun. 20, 2014 SVB and PFG Agreements [Member] Period Three [Member]	Feb. 10, 2014 SVB and PFG Agreements [Member] Period Three [Member]	Apr. 30, 2014 SVB and PFG Agreements [Member] Period Three [Member]	Jun. 20, 2014 SVB and PFG Agreements [Member] Period Four [Member]	Feb. 10, 2014 SVB and PFG Agreements [Member] Period Four [Member]	Apr. 30, 2014 SVB and PFG Agreements [Member] Period Four [Member]	Apr. 30, 2014 SVB and PFG Agreements [Member] Minimum [Member]	Jan. 31, 2014 Partners For Growth [Member] Period One [Member]	Jan. 31, 2014 Partners For Growth [Member] Period Two [Member]	Feb. 08, 2013 Partners For Growth [Member]	Sep. 26, 2014 Partners For Growth [Member]	Sep. 27, 2013 Partners For Growth [Member]	Sep. 26, 2014 Partners For Growth [Member]	Sep. 27, 2013 Partners For Growth [Member]	Apr. 30, 2014 Partners For Growth [Member]	Feb. 10, 2014 Partners For Growth [Member]	Jan. 31, 2014 Partners For Growth [Member]	Sep. 26, 2014 Michigan Economic Development Corporation Loan Agreement [Member]	Sep. 27, 2013 Michigan Economic Development Corporation Loan Agreement [Member]	Sep. 26, 2014 Michigan Economic Development Corporation Loan Agreement [Member]	Sep. 27, 2013 Michigan Economic Development Corporation Loan Agreement [Member]	Dec. 31, 2006 Michigan Economic Development Corporation Loan Agreement [Member]
Note 5 - Debt (Details) [Line Items]
Debt Instrument, Term	3 years
Loans Payable to Bank		$ 167,000		$ 306,000																								$ 1,000,000
Line of Credit Facility, Maximum Borrowing Capacity																													3,000,000												5,000,000
Covenant Requirements Liquidity Ratio																					2.00	1.50																												2.25	1.30	1.30	1.30	2.00	2.25	2.00							2.00										2.25
Debt Instrument Covenant Annual Earnings Before Interest Taxes Depreciation and Amortization																					(800,000)	(300,000)	(100,000)																			(300,000)	1								(850,000)	(1,200,000)	(800,000)	(300,000)	(800,000)	(600,000)	1	(600,000)	(250,000)	100,000	1	1		(300,000)	1
Debt Instrument, Fee Amount																																																	50,000																							75,000
Debt Instrument, Covenant Requirement, Liquidity Ratio, Compliance Fees																										15,000	20,000																					15,000																							20,000
Proceeds from Issuance of Common Stock		2,914,000			2,657,000	398,606
Stock Issued During Period, Shares, New Issues (in Shares)					5,391,304		6,200,000
Stock Issued During Period, Shares, Conversion of Units (in Shares)						808,696
Debt Instrument Interest Additional Interest Above Prime Rate																														0.50%	4.00%		1.00%	4.50%
Legal Fees, Reimbursement																			10,000	12,500				10,000	12,500
Debt Instrument, Interest Rate, Effective Percentage																																			3.75%
Line of Credit Facility, Interest Rate at Period End																																4.25%
Long-term Line of Credit		1,201,000		2,147,000																												1,200,000
Line of Credit Facility, Remaining Borrowing Capacity																																2,600,000
Interest Paid		167,000	193,000																																	1,000	1,000	2,000	0					16,000	25,000	54,000	36,000																				45,000	66,000	95,000	138,000				8,000	8,000	16,000	18,000
Debt Instrument, Face Amount																																																																		2,500,000												2,200,000
Debt Instrument, Periodic Payment, Principal																																								1,700																										59,524
Debt Instrument, Interest Rate, Stated Percentage																																																																		11.75%								5.00%		5.00%
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)									1,195,000	1,195,000	995,000	995,000	200,000	200,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share)											$ 0.50	$ 0.50	$ 1.00	$ 1.00			$ 0.500	$ 1.000
Minimum Trading Days For Calculating Closing Price of Common Stock																																																																		45 days
Exercise Of Stock Warrants Value															250,000
Warrants and Rights Outstanding																434,000
Debt Instrument, Unamortized Discount																																																																			144,000		144,000
Unsecured Debt		654,000		654,000																																																																						327,000		327,000
Capital Lease Obligations Incurred			$ 50,000					$ 82,000