Note 22 - Commitments - Funds Lent to Small Business Borrowers (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)
SBIC Capital Commitment [Member]
Total Capital Commitment	$ 15,050
Capital Called	9,900
Remaining Unfunded Capital Commitment	5,150
Fintech Fund Commitment [Member]
Total Capital Commitment	6,200
Capital Called	3,298
Remaining Unfunded Capital Commitment	2,902
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	110
Remaining Unfunded Capital Commitment	390
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	348
Remaining Unfunded Capital Commitment	652
Firmament Capital Partners, SBIC III [Member] | SBIC Capital Commitment [Member]
Total Capital Commitment	2,500
Capital Called	1,707
Remaining Unfunded Capital Commitment	793
Ledyard Capital Managers, LLC [Member] | Fintech Fund Commitment [Member]
Total Capital Commitment	1,000
Capital Called	1,000
Remaining Unfunded Capital Commitment	0
Bluehenge Capital Secured Debt SBIC L.P [Member] | SBIC Capital Commitment [Member]
Total Capital Commitment	2,500
Capital Called	2,312
Remaining Unfunded Capital Commitment	188
Mendon Ventures Banktech Fund I, LP [Member] | Fintech Fund Commitment [Member]
Total Capital Commitment	1,500
Capital Called	904
Remaining Unfunded Capital Commitment	596
Bluehenge Capital Secured Debt SBIC II, L.P. [Member] | SBIC Capital Commitment [Member]
Total Capital Commitment	2,500
Capital Called	359
Remaining Unfunded Capital Commitment	2,141
Castle Creek Launchpad Fund I, LP [Member] | Fintech Fund Commitment [Member]
Total Capital Commitment	1,500
Capital Called	236
Remaining Unfunded Capital Commitment	1,264
New Louisiana Angel Fund 2, LLC [Member] | SBIC Capital Commitment [Member]
Total Capital Commitment	50
Capital Called	50
Remaining Unfunded Capital Commitment	0
Work America Capital Fund I, LP [Member] | Fintech Fund Commitment [Member]
Total Capital Commitment	700
Capital Called	700
Remaining Unfunded Capital Commitment	0
Pharos Capital Partners, IV-A, LP [Member] | SBIC Capital Commitment [Member]
Total Capital Commitment	1,000
Capital Called	395
Remaining Unfunded Capital Commitment	605
Valesco Fund II, LP [Member] | SBIC Capital Commitment [Member]
Total Capital Commitment	1,000
Capital Called	737
Remaining Unfunded Capital Commitment	263
GP Capital Partners, LP [Member] | SBIC Capital Commitment [Member]
Total Capital Commitment	1,000
Capital Called	316
Remaining Unfunded Capital Commitment	$ 684