Note 4 - Share Repurchase Plan (Details) - USD ($)	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Note 4 - Share Repurchase Plan (Details) [Line Items]
Treasury Stock, Shares	164,569		164,569
Treasury Stock, Value (in Dollars)	$ 2,476,000		$ 2,476,000
Share Repurchase Program [Member]
Note 4 - Share Repurchase Plan (Details) [Line Items]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased	100,000
Treasury Stock, Shares, Acquired	0	0
Treasury Stock, Shares	57,883
Treasury Stock, Shares, Average Price per Share Acquired (in Dollars per share)	$ 16.97
Treasury Stock, Value (in Dollars)	$ 982,000