Note 6 - Financing Arrangements (Details) (USD $)	9 Months Ended
	Dec. 31, 2013	Aug. 31, 2014
Note 6 - Financing Arrangements (Details) [Line Items]
Secured Long-term Debt, Noncurrent	$ 7,000,000	$ 7,000,000
Debt Instrument, Basis Spread on Variable Rate (in Basis Points)	1.50%
London Interbank Offered Rate (LIBOR) [Member]
Note 6 - Financing Arrangements (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate (in Basis Points)	0.17%