Note 5 - Revenue (Tables)

9 Months Ended

Sep. 30, 2021

Notes Tables

Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]

	September 30,		December 31,		September 30,
($ in thousands)	2021		2020		2020
Contract liabilities	$	1,899	$	5,582	$	-

Revenue, Initial Application Period, Cumulative Effect Transition [Table Text Block]

($ in thousands)	Contract liabilities
Balance, December 31, 2020	$	5,582
Non-cancelable contracts with customers entered into during the period		2,017
Revenue recognized related to non-cancelable contracts with customers during the period		(5,700	)
Balance, September 30, 2021	$	1,899