Note 3 - Fair Value Measurements - Estimated Fair Values of the Company's Financial Assets and Liabilities (Details) - USD ($)	Jun. 30, 2017	Dec. 31, 2016
Reported Value Measurement [Member]
Cash and cash equivalents	$ 1,728,857	$ 3,145,745
Investments, at fair value	18,308,822	15,463,578
Total Financial Assets	20,037,679	18,609,323
Policyholder deposits in deposit-type contracts	4,191,021	3,398,170
Total Financial Liabilities	4,191,021	3,398,170
Estimate of Fair Value Measurement [Member]
Cash and cash equivalents	1,728,857	3,145,745
Investments, at fair value	18,308,822	15,463,578
Total Financial Assets	20,037,679	18,609,323
Policyholder deposits in deposit-type contracts	4,099,186	3,260,086
Total Financial Liabilities	$ 4,099,186	$ 3,260,086