Note 1 - Description of Business and Significant Accounting Policies - Information About Deposit-type Contracts (Details) - USD ($)	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Balance at beginning of period	$ 13,448,891
Receipts on deposit-type contracts	4,048,626	$ 2,187,387
Interest credited	579,038	247,692
Withdrawals on deposit-type contracts	(1,450,062)	(607,083)
Balance at end of period	16,626,218	13,448,891
Deferred Annuity Deposit-type Contracts [Member]
Balance at beginning of period	12,931,900	3,398,170
Assumed from American Life & Security Corp		5,841,703
Receipts on deposit-type contracts	4,004,619	2,187,387
Interest credited	566,999	243,310
Withdrawals on deposit-type contracts	(1,338,011)	(592,398)
Balance at end of period	16,201,166	12,931,900
Deferred Annuity Deposit-type Contracts [Member] \| Dakota Capital Life [Member]
Acquisition of Dakota Capital Life		1,853,728
Deferred Annuity Deposit-type Contracts [Member] \| GWLIC [Member]
Acquisition of Dakota Capital Life	35,659
Premium Deposit Fund Deposit-type Contracts [Member]
Balance at beginning of period	516,991
Assumed from American Life & Security Corp	(35,934)	351,884
Receipts on deposit-type contracts	44,007
Interest credited	12,039	4,382
Withdrawals on deposit-type contracts	(112,051)	(14,685)
Balance at end of period	425,052	516,991
Premium Deposit Fund Deposit-type Contracts [Member] \| Dakota Capital Life [Member]
Acquisition of Dakota Capital Life		$ 175,410

The cash inflow from a segregated fund account during the period.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
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Interest allocated to policyholders holding contracts under which the insurer must provide a guaranteed yield.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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The liability as of the balance sheet date to the policyholders for deposits held under the terms of insurance contracts.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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The cash outflow for a segregated fund account during the period.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Amount of increase to policyholder contract deposits from acquisitions.

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Amount of increase policyholder contracts deposits from coinsurance agreement.

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