Note 14 - Subsequent Events (Details Textual) - Subsequent Event [Member] - Cooperation Agreement [Member]	Apr. 13, 2023 USD ($)
Number of Directors	8
Stock Repurchase Program, Authorized Amount	$ 20,000,000
Accelerated Stock Repurchase Program with Investment Bank [Member]
Stock Repurchase Program, Authorized Amount	5,000,000
Stock Repurchase Program on Open Market [Member]
Stock Repurchase Program, Authorized Amount	5,000,000
Stock Repurchase Program on Open Market Subject to Positive Cash Flow[Member]
Stock Repurchase Program, Authorized Amount	$ 10,000,000