Note C - Loans - Analysis of Loan Portfolio by Loan Grade, Segregated by Class of Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Loans and leases receivable	$ 268,949	$ 273,346
A, B, or C [Member]
Loans and leases receivable	241,755	236,246
S [Member]
Loans and leases receivable	13,965	10,430
D [Member]
Loans and leases receivable	3,762	18,134
E [Member]
Loans and leases receivable	9,467	8,536
F [Member]
Loans and leases receivable	268,949	273,346
Gaming [Member]
Loans and leases receivable	19,899	25,767
Gaming [Member] | A, B, or C [Member]
Loans and leases receivable	19,899	21,080
Gaming [Member] | S [Member]
Loans and leases receivable
Gaming [Member] | D [Member]
Loans and leases receivable		4,687
Gaming [Member] | E [Member]
Loans and leases receivable
Gaming [Member] | F [Member]
Loans and leases receivable	19,899	25,767
Hotel/Motel [Member]
Loans and leases receivable	47,294	44,112
Hotel/Motel [Member] | A, B, or C [Member]
Loans and leases receivable	47,294	44,112
Hotel/Motel [Member] | S [Member]
Loans and leases receivable
Hotel/Motel [Member] | D [Member]
Loans and leases receivable
Hotel/Motel [Member] | E [Member]
Loans and leases receivable
Hotel/Motel [Member] | F [Member]
Loans and leases receivable	47,294	44,112
Real Estate, Construction [Member]
Loans and leases receivable	23,209	28,763
Real Estate, Construction [Member] | A, B, or C [Member]
Loans and leases receivable	22,611	27,096
Real Estate, Construction [Member] | S [Member]
Loans and leases receivable
Real Estate, Construction [Member] | D [Member]
Loans and leases receivable	83	217
Real Estate, Construction [Member] | E [Member]
Loans and leases receivable	515	1,450
Real Estate, Construction [Member] | F [Member]
Loans and leases receivable	23,209	28,763
Real Estate, Mortgage [Member]
Loans and leases receivable	141,406	140,271
Real Estate, Mortgage [Member] | A, B, or C [Member]
Loans and leases receivable	123,841	111,719
Real Estate, Mortgage [Member] | S [Member]
Loans and leases receivable	5,338	10,430
Real Estate, Mortgage [Member] | D [Member]
Loans and leases receivable	3,608	12,992
Real Estate, Mortgage [Member] | E [Member]
Loans and leases receivable	8,619	5,130
Real Estate, Mortgage [Member] | F [Member]
Loans and leases receivable	141,406	140,271
Commercial And Industrial Loan [Member]
Loans and leases receivable	30,626	27,505
Commercial And Industrial Loan [Member] | A, B, or C [Member]
Loans and leases receivable	21,609	25,335
Commercial And Industrial Loan [Member] | S [Member]
Loans and leases receivable	8,627
Commercial And Industrial Loan [Member] | D [Member]
Loans and leases receivable	59	218
Commercial And Industrial Loan [Member] | E [Member]
Loans and leases receivable	331	1,952
Commercial And Industrial Loan [Member] | F [Member]
Loans and leases receivable	30,626	27,505
Other Loan [Member]
Loans and leases receivable	6,515	6,928
Other Loan [Member] | A, B, or C [Member]
Loans and leases receivable	6,501	6,904
Other Loan [Member] | S [Member]
Loans and leases receivable
Other Loan [Member] | D [Member]
Loans and leases receivable	12	20
Other Loan [Member] | E [Member]
Loans and leases receivable	2	4
Other Loan [Member] | F [Member]
Loans and leases receivable	$ 6,515	$ 6,928