Note 4 - Investments (Details) - State-guaranteed Receivables by Contractual Maturity (USD $)	Jun. 30, 2013	Dec. 31, 2012
Note 4 - Investments (Details) - State-guaranteed Receivables by Contractual Maturity [Line Items]
Total	$ 9,543,357	$ 10,186,226
State-Guaranteed Receivables [Member]
Note 4 - Investments (Details) - State-guaranteed Receivables by Contractual Maturity [Line Items]
Due in one year or less	701,042
Due in one year or less	708,696
Due after one year through five years	2,471,437
Due after one year through five years	2,649,076
Due after five years through ten years	2,771,836
Due after five years through ten years	3,304,332
Due after ten years	2,156,209
Due after ten years	2,881,253
Total	8,100,524
Total	$ 9,543,357