Note 22 - Commitments - Funds Lent to Small Business Borrowers (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($)
SBIC Capital Commitment [Member]
Total Capital Commitment	$ 8,800
Capital Called	6,726
Remaining Unfunded Capital Commitment	2,074
Fintech Fund Commitment [Member]
Total Capital Commitment	4,000
Capital Called	1,387
Remaining Unfunded Capital Commitment	2,613
Mc Larty Capital Partners SBIC L.P [Member] | SBIC Capital Commitment [Member]
Total Capital Commitment	2,000
Capital Called	1,802
Remaining Unfunded Capital Commitment	198
BankTech Ventures, LP [Member] | Fintech Fund Commitment [Member]
Total Capital Commitment	500
Capital Called	60
Remaining Unfunded Capital Commitment	440
McLarty Capital Partners SBIC II, L.P. [Member] | SBIC Capital Commitment [Member]
Total Capital Commitment	2,500
Capital Called	2,222
Remaining Unfunded Capital Commitment	278
Jam Fintop Banktech, LP [Member] | Fintech Fund Commitment [Member]
Total Capital Commitment	1,000
Capital Called	173
Remaining Unfunded Capital Commitment	827
Bluehenge Capital Secured Debt SBIC L.P [Member] | SBIC Capital Commitment [Member]
Total Capital Commitment	1,500
Capital Called	1,387
Remaining Unfunded Capital Commitment	113
Ledyard Capital Managers, LLC [Member] | Fintech Fund Commitment [Member]
Total Capital Commitment	1,000
Capital Called	1,000
Remaining Unfunded Capital Commitment	0
New Louisiana Angel Fund 2, LLC [Member] | SBIC Capital Commitment [Member]
Total Capital Commitment	50
Capital Called	38
Remaining Unfunded Capital Commitment	12
Mendon Ventures Banktech Fund I, LP [Member] | Fintech Fund Commitment [Member]
Total Capital Commitment	1,500
Capital Called	154
Remaining Unfunded Capital Commitment	1,346
Firmament Capital Partners, SBIC III [Member] | SBIC Capital Commitment [Member]
Total Capital Commitment	2,500
Capital Called	1,042
Remaining Unfunded Capital Commitment	1,458
Pharos Capital Partners, IV-A, LP [Member] | SBIC Capital Commitment [Member]
Total Capital Commitment	250
Capital Called	235
Remaining Unfunded Capital Commitment	$ 15