Note 14 - Severance Costs (Details Textual) - USD ($)	1 Months Ended	3 Months Ended					6 Months Ended
	Mar. 31, 2015	Mar. 31, 2016	Dec. 31, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2015
Chief Executive Officer [Member] | Reclassification From Liability [Member]
Other Noncash Income	$ 576,000
Chief Executive Officer [Member]
Severance Costs						$ 800,000
Payments for Postemployment Benefits							$ 224,000
Increase (Decrease) in Self Insurance Reserve				$ 1,000,000
Facility Closing [Member]
Business Exit Costs					$ 21,200
Severance Costs		$ 178,000	$ 223,000		$ 340,000
Percent Of Reduction Of Workforce	8.30%				8.30%		8.30%
Employee Related Reduction In Annual Compensation And Benefits					$ 3,700,000