Note 10 - Commitments and Contingencies (Details) (USD $)	Mar. 31, 2014
Note 10 - Commitments and Contingencies (Details) [Line Items]
Operating Leases, Future Minimum Payments Due	$ 937,000
Revenue Equipment Expenditure [Member]
Note 10 - Commitments and Contingencies (Details) [Line Items]
Contractual Obligation, Due in Next Twelve Months	42,000,000
Building Construction and Acquisition Expenditures [Member]
Note 10 - Commitments and Contingencies (Details) [Line Items]
Contractual Obligation, Due in Next Twelve Months	$ 2,600,000