Note 5 - Stockholders' Equity (Details)	Dec. 31, 2014	Dec. 31, 2013
Note 5 - Stockholders' Equity (Details) [Line Items]
Capital Units, Authorized	135,000,000
Common Stock, Shares Authorized	100,000,000	100,000,000
Preferred Stock, Shares Authorized	20,000,000
Stock Repurchase Program, Number of Shares Authorized to be Repurchased	5,000,000
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	279,200
Common Class A [Member]
Note 5 - Stockholders' Equity (Details) [Line Items]
Common Stock, Shares Authorized	15,000,000	15,000,000
Common Stock, Voting Rights, Votes Per Share	10
Common Stock, Capital Shares Reserved for Future Issuance	763,706	1,000,000
Common Class B [Member]
Note 5 - Stockholders' Equity (Details) [Line Items]
Common Stock, Shares Authorized	100,000,000
Common Stock, Voting Rights, Votes Per Share	1
Common Stock, Capital Shares Reserved for Future Issuance	7,116,171	7,431,473