Note 2 - Notes Payable and Long-Term Debt (Details) (USD $)			0 Months Ended		1 Months Ended	0 Months Ended	6 Months Ended
	Jul. 31, 2007 Building [Member] Credit Agreement with JPMorgan Chase Bank, N.A. [Member] sqft	Jul. 31, 2007 Land [Member] Credit Agreement with JPMorgan Chase Bank, N.A. [Member] acre	Aug. 05, 2014 Subsequent Event [Member] Line of Credit Note with JPMorgan Chase Bank, N.A.[Member]	Apr. 30, 2008 Term Note [Member] Credit Agreement with JPMorgan Chase Bank, N.A. [Member]	Jul. 31, 2007 Credit Agreement with JPMorgan Chase Bank, N.A. [Member]	Jul. 12, 2012 Line of Credit Note with JPMorgan Chase Bank, N.A.[Member] London Interbank Offered Rate (LIBOR) [Member]	Jun. 30, 2014 Line of Credit Note with JPMorgan Chase Bank, N.A.[Member] London Interbank Offered Rate (LIBOR) [Member]	Jun. 30, 2014 Line of Credit Note with JPMorgan Chase Bank, N.A.[Member]	Jul. 12, 2012 Line of Credit Note with JPMorgan Chase Bank, N.A.[Member]
Note 2 - Notes Payable and Long-Term Debt (Details) [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity					$ 5,500,000			$ 6,000,000	$ 4,000,000
Area of Real Estate Property	191,000	30
Line of Credit Facility Maximum Borrowing Capacity Percentage of Property					90.00%
Proceeds from Bank Debt					4,050,000
Debt Instrument, Term				10 years
Debt Instrument, Interest Rate, Stated Percentage				7.10%
Debt Instrument, Basis Spread on Variable Rate						2.00%	2.16%
Proceeds from Lines of Credit			3,000,000
Line of Credit Facility, Remaining Borrowing Capacity			$ 750,000