Note 3 - Long-Term Debt (Details) (USD $)	12 Months Ended			0 Months Ended	1 Months Ended							3 Months Ended	0 Months Ended	1 Months Ended
	Dec. 31, 2013	Mar. 31, 2014	Mar. 31, 2014 Scenario, Forecast [Member] Effective July 1, 2014 [Member]	Jul. 02, 2018 Scenario, Forecast [Member]	Jul. 31, 2013 Per Month Through July 1, 2015 [Member]	Jul. 31, 2013 Per Month July 1, 2015 Through June 1, 2018 [Member]	Mar. 31, 2014 London Interbank Offered Rate (LIBOR) [Member]	Jun. 30, 2013 London Interbank Offered Rate (LIBOR) [Member]	Mar. 31, 2014 Term Loan [Member]	Jul. 02, 2013 Term Loan [Member]	Mar. 31, 2014 Senior Debt [Member]	Mar. 31, 2014 Interest Rate Swap [Member]	Jul. 02, 2013 Revolving Credit Facility [Member]	Jul. 31, 2013 Revolving Credit Facility [Member]	Oct. 22, 2013 Revolving Credit Facility [Member]	Oct. 21, 2013 Revolving Credit Facility [Member]
Note 3 - Long-Term Debt (Details) [Line Items]
Line of Credit Facility, Expiration Period													5 years
Line of Credit Facility, Maximum Borrowing Capacity													$ 15,000,000
Debt Instrument, Face Amount										30,000,000
Debt Instrument, Interest Rate, Stated Percentage								0.95%
Debt Instrument, Basis Spread on Variable Rate							1.20%
Line of Credit Facility, Commitment Fee Percentage	0.10%
Letters of Credit Outstanding, Amount		0
Permitted Investments in Subsidiaries															5,000,000	1,000,000
Derivative, Fixed Interest Rate			2.53%
Derivative, Notional Amount		14,250,000
Debt Instrument, Periodic Payment, Principal				3,250,000	187,500	250,000
Interest Rate Derivative Assets, at Fair Value												(154,000)
Increase (Decrease) in Derivative Assets												154,000
Other Tax Expense (Benefit)												(55,000)
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year									1,500,000
Long-term Debt, Maturities, Repayments of Principal in Year Two									2,625,000
Long-term Debt, Maturities, Repayments of Principal in Year Three									3,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Four									3,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Five									15,875,000
Debt Issuance Cost														$ 68,000
Ratio of Maximum Funded Indebtedness To EBITDA		4.0									3.5
Fixed Charge Coverage Ratio		1.25