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Note 20 - Debt - Interest Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Interest expense, net	$ 7,233	$ 9,589	$ 7,584
Interest expense (income), net	7,233	9,589	7,584
Junior Subordinated Notes [Member]
Interest expense, net	2,601	2,882	3,457
Senior Note 2020 [Member]
Interest expense, net	540	496	0
Convertible Note 2017 [Member]
Interest expense, net	1,534	1,505	1,472
Convertible 2013 Notes/ 2019 Senior Notes [Member]
Interest expense, net	211	336	615
Byline Bank Credit Facility [Member]
Interest expense, net	435	1,102	365
Redeemable Financial Instrument - DGC Family Fintech Trust / CBF [Member]
Interest expense (income), net	197	1,490	1,166
Redeemable Financial Instrument - JKD Capital Partners I LTD [Member]
Interest expense (income), net	1,715	1,883	699
Redeemable Financial Instrument - ViaNova Capital Group, LLC [Member]
Interest expense (income), net	$ 0	$ (105)	$ (190)

X

- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

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- Definition

The net amount of nonoperating interest income (expense).

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