Note 10 - Long-Term Debt (Details) - Long-term Debt (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Note 10 - Long-Term Debt (Details) - Long-term Debt [Line Items]
Long-term Debt	$ 10,000	$ 10,000
	10,000	10,000
Unsecured Term Note Payable [Member]
Note 10 - Long-Term Debt (Details) - Long-term Debt [Line Items]
Weighted Average Interest Rate, Variable	2.80%
Maturities	2018
Long-term Debt	$ 10,000	$ 10,000
Revolving Credit Facility [Member]
Note 10 - Long-Term Debt (Details) - Long-term Debt [Line Items]
Weighted Average Interest Rate, Variable	0.90%
Maturities	2014