Note 4 - Business Combinations (Details Textual) - Gramophone Acquisition [Member] $ in Thousands	Oct. 17, 2021 USD ($) shares
Business Acquisition, Percentage of Voting Interests Acquired	100.00%
Business Combination, Consideration Transferred	$ 413
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) | shares	79,365
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	$ 89
Business Combination, Consideration Transferred, Liabilities Incurred	174
Payments to Acquire Businesses, Gross	150
Business Combination, Contingent Consideration Arrangements, First Year Revenue Target	1,400
Business Combination, Contingent Consideration Arrangements, First Year EBITDA Target	300
Business Combination, Contingent Consideration Arrangements, Second Year Revenue Target	2,000
Business Combination, Contingent Consideration Arrangements, Second Year EBITDA Target	500
Cash Earnout [Member]
Business Combination, Contingent Consideration, Liability	$ 300
Measurement Input, Discount for Lack of Marketability [Member]
Business Combination, Contingent Consideration, Liability, Measurement Input	0.25