Note 9 - Derivative Financial Instruments (Details) - Fair Value of Swaps Recognized in Accrued Liabilities and in Other Comprehensive Income (Loss) (USD $)	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Note 9 - Derivative Financial Instruments (Details) - Fair Value of Swaps Recognized in Accrued Liabilities and in Other Comprehensive Income (Loss) [Line Items]
Fair Value	$ (1,061,000)	$ (1,875,000)
Identical Row 1 [Member] | Effective Date 1 [Member]
Note 9 - Derivative Financial Instruments (Details) - Fair Value of Swaps Recognized in Accrued Liabilities and in Other Comprehensive Income (Loss) [Line Items]
Notional Amount	5,000,000
Fixed Rate	2.495%
Maturity	May 26, 2015
Fair Value	(108,000)	(205,000)
Identical Row 2 [Member] | Effective Date 1 [Member]
Note 9 - Derivative Financial Instruments (Details) - Fair Value of Swaps Recognized in Accrued Liabilities and in Other Comprehensive Income (Loss) [Line Items]
Notional Amount	5,000,000
Fixed Rate	2.495%
Maturity	May 26, 2015
Fair Value	(108,000)	(205,000)
Effective Date 2 [Member]
Note 9 - Derivative Financial Instruments (Details) - Fair Value of Swaps Recognized in Accrued Liabilities and in Other Comprehensive Income (Loss) [Line Items]
Notional Amount	10,000,000
Fixed Rate	2.395%
Maturity	May 26, 2015
Fair Value	(206,000)	(389,000)
Effective Date 3 [Member]
Note 9 - Derivative Financial Instruments (Details) - Fair Value of Swaps Recognized in Accrued Liabilities and in Other Comprehensive Income (Loss) [Line Items]
Notional Amount	5,000,000
Fixed Rate	2.34%
Maturity	May 26, 2015
Fair Value	(100,000)	(190,000)
Effective Date 4 [Member]
Note 9 - Derivative Financial Instruments (Details) - Fair Value of Swaps Recognized in Accrued Liabilities and in Other Comprehensive Income (Loss) [Line Items]
Notional Amount	5,000,000
Fixed Rate	2.38%
Maturity	May 26, 2015
Fair Value	(103,000)	(194,000)
Effective Date 5 [Member]
Note 9 - Derivative Financial Instruments (Details) - Fair Value of Swaps Recognized in Accrued Liabilities and in Other Comprehensive Income (Loss) [Line Items]
Notional Amount	5,000,000
Fixed Rate	1.28%
Maturity	Sep. 21, 2013
Fair Value		(14,000)
Effective Date 6 [Member]
Note 9 - Derivative Financial Instruments (Details) - Fair Value of Swaps Recognized in Accrued Liabilities and in Other Comprehensive Income (Loss) [Line Items]
Notional Amount	5,000,000
Fixed Rate	1.60%
Maturity	Sep. 22, 2014
Fair Value	(18,000)	(83,000)
Effective Date 7 [Member]
Note 9 - Derivative Financial Instruments (Details) - Fair Value of Swaps Recognized in Accrued Liabilities and in Other Comprehensive Income (Loss) [Line Items]
Notional Amount	10,000,000
Fixed Rate	2.75%
Maturity	Mar. 15, 2016
Fair Value	$ (418,000)	$ (595,000)