Note 6 - Stockholders' Equity (Details) (USD $)	3 Months Ended		15 Months Ended		3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	0 Months Ended				1 Months Ended						1 Months Ended					1 Months Ended
	Jun. 27, 2014	Jun. 28, 2013	Jun. 28, 2014	Mar. 31, 2014	Jun. 27, 2014 Warrant [Member] Partners For Growth [Member]	Mar. 31, 2014 Warrant [Member] Partners For Growth [Member]	Jun. 27, 2014 Warrant [Member]	Mar. 31, 2014 Warrant [Member]	Jun. 06, 2014 Common Class A [Member]	Jun. 10, 2014 Common Class A [Member]	Jun. 12, 2014 Common Class A [Member]	Nov. 29, 2010 Common Class A [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]	Nov. 29, 2010 2010 Warrants [Member]	Jun. 06, 2014 2010 Warrants [Member]	Nov. 29, 2010 2010 Warrants [Member] Minimum [Member]	Jun. 27, 2014 Partners for Growth One [Member]	Jun. 27, 2014 Partners for Growth Two [Member]	May 31, 2010 Michigan Economic Development Corporation Loan Agreement [Member]
Note 6 - Stockholders' Equity (Details) [Line Items]
Stock Issued During Period, Shares, New Issues									5,391,304		6,200,000
Share Price (in Dollars per share)												$ 0.530
Share Price, Discount Rate on Market Price (in Dollars per share)												$ 0.493
Common Stock, Capital Shares Reserved for Future Issuance									808,696
Proceeds from Issuance of Common Stock (in Dollars)	$ 2,914,000								$ 2,657,000	$ 398,606	$ 2,900,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights													1,195,000	1,195,000	995,000	995,000	200,000	200,000	267,196
Exercise Period Of Warrants													5 years						5 years
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right																			1
Share Price Trigger (in Dollars per share)																			$ 1.404
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share)															$ 0.50	$ 0.50	$ 1.00	$ 1.00		$ 1.242	$ 1.17	$ 0.500	$ 1.000
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net (in Dollars)	45,000	(196,000)	196,000
Derivative Liability, Noncurrent (in Dollars)	364,000			409,000
Fair Value Assumptions, Expected Dividend Rate					0.00%	0.00%	0.00%	0.00%
Debt Conversion, Converted Instrument, Amount (in Dollars)																								$ 562,336
Debt Conversion, Converted Instrument, Shares Issued																								1,041,363
Debt Instrument, Convertible, Conversion Price (in Dollars per share)																								$ 0.54