Note 4 - Investments (Details) - State-Guaranteed Receivables by Contractual Maturity (USD $)	Mar. 31, 2015	Dec. 31, 2014
Note 4 - Investments (Details) - State-Guaranteed Receivables by Contractual Maturity [Line Items]
Total	$ 7,759,795	$ 7,917,379
Total	9,650,127	9,719,006
State-Guaranteed Receivables [Member]
Note 4 - Investments (Details) - State-Guaranteed Receivables by Contractual Maturity [Line Items]
Due in one year or less	739,517
Due in one year or less	755,505
Due after one year through five years	2,476,155
Due after one year through five years	2,750,467
Due after five years through ten years	3,011,141
Due after five years through ten years	3,859,923
Due after ten years	1,532,982
Due after ten years	2,284,232
Total	7,759,795
Total	$ 9,650,127