Note 5 - Notes Payable and Long-term Debt (Details) - Summary of Credit Agreement and Line of Credit Note (Parentheticals) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Credit Agreement with JPMorgan Chase Bank, N.A. [Member]
Note 5 - Notes Payable and Long-term Debt (Details) - Summary of Credit Agreement and Line of Credit Note (Parentheticals) [Line Items]
Line of Credit Note term	10 years	10 years
Line of Credit Note monthly principal payments	$ 16,875	$ 16,875
Line of Credit Note interest	7.10%	7.10%
Line of Credit Note with JPMorgan Chase Bank, N.A.[Member] | London Interbank Offered Rate (LIBOR) [Member]
Note 5 - Notes Payable and Long-term Debt (Details) - Summary of Credit Agreement and Line of Credit Note (Parentheticals) [Line Items]
Line of Credit Note, Interest at LIBOR	2.00%
Line of Credit Note with JPMorgan Chase Bank, N.A.[Member]
Note 5 - Notes Payable and Long-term Debt (Details) - Summary of Credit Agreement and Line of Credit Note (Parentheticals) [Line Items]
Line of Credit Note, Principal Amount	$ 6,000,000