Note 15 - Stockholders' Equity and Stock-based Compensation (Details Textual) - USD ($) $ / shares in Units, $ in Thousands			9 Months Ended	12 Months Ended		24 Months Ended
	Jun. 26, 2023	Feb. 18, 2022	Sep. 30, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2021	Jun. 30, 2021
Share-Based Payment Arrangement, Noncash Expense				$ 2,082	$ 2,348
Common Stock, Par or Stated Value Per Share (in dollars per share)				$ 0.001	$ 0.001	$ 0.001
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)				0	774,505
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)						6 years 6 months
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount				$ 1,300		$ 1,300
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number (in shares)				2,074,505	2,074,505	2,074,505		1,300,000
Common Stock, Shares Authorized (in shares)				37,500,000	37,500,000	37,500,000
Preferred Stock, Shares Authorized (in shares)				1,000,000	1,000,000	1,000,000
Preferred Stock, Par or Stated Value Per Share (in dollars per share)				$ 0.001	$ 0.001	$ 0.001
Preferred Stock, Shares Issued (in shares)				0	0	0
Preferred Stock, Shares Outstanding (in shares)				0	0	0
Defined Contribution Plan, Employer Discretionary Contribution Amount				$ 274	$ 279
Maximum [Member]
Common Stock, Shares Authorized (in shares)				37,500,000		37,500,000
Preferred Stock, Shares Authorized (in shares)				1,000,000		1,000,000
Black Scholes Valuation Model [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)		774,505
Option Indexed to Issuer's Equity, Strike Price (in dollars per share)				$ 6
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)				3 years
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount				$ 1,500		$ 1,500
Share Price (in dollars per share)				$ 4.11		$ 4.11
Share-Based Compensation Arrangement by Share-Based Payment Award, Purchase Price of Common Stock, Percent				0.70%
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Payments				$ 0
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year)						10 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate						44.00%
Stock Appreciation Rights (SARs) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)	685,437			685,437
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 10
Share-Based Payment Arrangement, Expense				$ 11
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount				$ 100		$ 100
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in shares)				685,437	0	685,437
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)				3 years
Restricted Stock Units (RSUs) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)				0	40,764
Share-Based Payment Arrangement, Expense				$ 600	$ 1,000
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount				$ 100		$ 100
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in shares)				27,177	210,939	27,177		427,019
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)				2 years
Share-Based Payment Arrangement, Option [Member]
Share-Based Payment Arrangement, Expense				$ 1,500	$ 1,400
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount				$ 1,100		$ 1,100
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)				1 year
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number (in shares)				945,337		945,337
Participant [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Grant Limit (in shares)			2,000,000
Non Employee Board Member [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Grant Limit (in shares)			100,000
Amended And Restated2019 Long Term Incentive Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)			5,500,000				4,000,000		1,675,000
Amended And Restated2019 Long Term Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member]
Stock Issued During Period, Shares, Issued for Services (in shares)		40,764
Stock Issued During Period, Value, Restricted Stock Award, Gross		$ 200
Amended And Restated2019 Long Term Incentive Plan [Member] | Executive Officer [Member] | Share-Based Payment Arrangement, Option [Member]
Share-Based Payment Arrangement, Expense				$ 49	$ 56