Note 8 - Debt (Details) (USD $)	3 Months Ended	6 Months Ended	9 Months Ended	10 Months Ended	12 Months Ended			1 Months Ended		1 Months Ended			1 Months Ended				9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended			1 Months Ended					0 Months Ended		9 Months Ended
	Sep. 29, 2013	Jun. 27, 2013	Sep. 29, 2013	Oct. 24, 2012	Dec. 31, 2012	Mar. 31, 2013	Mar. 31, 2011	Jun. 30, 2011 March 2011 Warants [Member] TCOMF2 [Member]	Mar. 31, 2011 March 2011 Warants [Member] TCOMF2 [Member]	Apr. 30, 2011 March 2011 Warants [Member] Northcreek [Member]	Mar. 31, 2011 March 2011 Warants [Member] Northcreek [Member]	Mar. 31, 2011 March 2011 Warants [Member]	Nov. 30, 2011 September 2011 Warrants [Member]	Sep. 16, 2011 September 2011 Warrants [Member]	Mar. 31, 2011 Northcreek [Member] March 2011 Notes [Member]	Mar. 31, 2011 TCOMF2/Northcreek [Member] March 2011 Notes [Member]	Sep. 29, 2013 Base Rate [Member]	Dec. 31, 2012 Base Rate [Member]	Sep. 29, 2013 London Interbank Offered Rate (LIBOR) [Member]	Dec. 31, 2012 London Interbank Offered Rate (LIBOR) [Member]	Mar. 30, 2012 March 2011 Notes [Member]	Mar. 31, 2011 March 2011 Notes [Member]	Sep. 30, 2011 September 2011 Notes [Member]	Mar. 30, 2012 September 2011 Notes [Member]	Sep. 16, 2011 September 2011 Notes [Member]	Oct. 24, 2012 March 2011 and September 2011 Notes [Member]	Jun. 29, 2012 March 2011 and September 2011 Notes [Member]	Sep. 16, 2012 Promissory Note [Member]	Oct. 24, 2012 Promissory Note [Member]	Sep. 29, 2013 Maximum [Member]	Sep. 29, 2013 Minimum [Member]
Note 8 - Debt (Details) [Line Items]
Line of Credit Facility, Amount Outstanding (in Dollars)	$ 63,000,000		$ 63,000,000		$ 49,716,000
Line of Credit Facility, Maximum Borrowing Capacity (in Dollars)				80,000,000			50,000,000
Debt Instrument, Term				5 years
Line of Credit Facility, Expiration Date				Oct. 24, 2017
Line of Credit Facility, Increase, Additional Borrowings, Option (in Dollars)				20,000,000
Sub-limit Amount For Advances (in Dollars)				5,000,000
Maximum Barrowing Capacity Available Under Standby Letter of Credit (in Dollars)				20,000,000
Debt Instrument, Basis Spread on Variable Rate																	0.50%	0.50%	1.50%	1.50%
Debt Instrument, Interest Rate at Period End																	3.75%	3.75%	1.6875%	1.6875%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage			0.20%		0.20%
Consolidated Leverage Ratio																														3.50	3.00
Consolidated Interest Coverage Ratio			2.25
Annual Capital Expenditures Limitation And Actual Year To Date (in Dollars)	8,000,000	7,000,000			8,000,000
Minimum Asset Coverage Ratio			1.00
Debt Instrument, Face Amount (in Dollars)															2,500,000	5,000,000							2,700,000					2,000,000
Debt Instrument, Interest Rate, Stated Percentage Until March 31, 2013						10.00%
Debt Instrument, Interest Rate, Stated Percentage After March 31, 2013	13.00%		13.00%
Debt Instrument, Maturity Date			Mar. 31, 2016																				Mar. 31, 2016					Sep. 16, 2013
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)									125,000		125,000			135,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item)												0.01		0.01
Stock Issued During Period, Shares, New Issues (in Shares)								125,000		125,000			135,000
Debt Instrument, Unamortized Discount (in Dollars)																						700,000			300,000
Debt Instrument, Interest Rate, Stated Percentage																							13.00%					10.00%
Debt Instrument, Option To Prepay Exercised																					10.00%			10.00%			10.00%
Debt Instrument, Prepaid Principal Amount (in Dollars)																					500,000			270,000			770,000
Debt Instrument Price Of Prepayment																					101.00%			101.00%		104.00%	101.00%
Long-term Debt, Gross (in Dollars)																										6,160,000			1,000,000
Debt Instrument, Number Of Periodic Payment																												8
Debt Instrument, Periodic Payment (in Dollars)																												$ 250,000