Note 1 - Summary of Significant Accounting Policies (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Real Estate Acquired Through Foreclosure	$ 249,000		$ 701,000
Mortgage Loans in Process of Foreclosure, Amount	545,000		811,000
Retained Earnings (Accumulated Deficit), Ending Balance	$ 38,831,000		$ 34,371,000
Accounting Standards Update 2016-02 [Member]
Operating Lease, Right-of-Use Asset		$ 1,600,000
Operating Lease, Liability, Total		1,800,000
Retained Earnings (Accumulated Deficit), Ending Balance		171,000
Deferred Income Tax Assets, Net, Total		(45,000)
Accounting Standards Update 2017-08 [Member]
Retained Earnings (Accumulated Deficit), Ending Balance		10,000
Deferred Income Tax Assets, Net, Total		$ (3,000)
Customer Relationships [Member]
Finite-Lived Intangible Asset, Useful Life	2 years
Building [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life	25 years
Building [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life	40 years
Furniture and Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life	3 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life	10 years