Note 12 - Lease Commitments (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Operating Leases, Future Minimum Payments Due, Next Twelve Months	$ 78,000
Operating Leases, Future Minimum Payments, Due in Four Years	64,000
Operating Leases, Future Minimum Payments, Due in Five Years	59,000
Operating Leases, Future Minimum Payments Due	$ 357,000
Lessee Leasing Arrangements, Operating Leases, Renewal Term	1 year
Operating Leases, Rent Expense	$ 28,000	$ 30,000
Operating Leases, Future Minimum Payments, Due in Two Years	78,000
Operating Leases, Future Minimum Payments, Due in Three Years	78,000
Heritage Hills [Member]
Operating Leases, Future Minimum Payments Due, Next Twelve Months	59,000
Operating Leases, Future Minimum Payments, Due in Four Years	59,000
Operating Leases, Future Minimum Payments, Due in Five Years	59,000
Operating Leases, Future Minimum Payments, Due in Two Years	59,000
Operating Leases, Future Minimum Payments, Due in Three Years	59,000
Branch Office Space Beginning April 2015 [Member]
Operating Leases, Future Minimum Payments Due, Next Twelve Months	19,000
Operating Leases, Future Minimum Payments, Due in Four Years	19,000
Operating Leases, Future Minimum Payments, Due in Two Years	19,000
Operating Leases, Future Minimum Payments, Due in Three Years	$ 19,000