Note 9 - Stock-Based Compensation (Details Textual) - USD ($) $ in Millions		3 Months Ended
	Jun. 18, 2024	Mar. 31, 2026
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)		13,000
Maximum [Member] | Restricted Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)		48 months
Minimum [Member] | Restricted Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)		2 months
The 2015 Omnibus Equity Incentive Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized (in shares)	3,000,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)		1,600,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)		7,200,000
Stock Issued During Period, Shares, Restricted Stock Award, Gross (in shares)		202,714
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)		12,500
Share-Based Compensation Arrangement by Share-Based Payment Award, Full Value Awards (in shares)		1,200,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Partial Value Awards (in shares)		1,000,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount		$ 1
The 2015 Omnibus Equity Incentive Plan [Member] | Share-Based Payment Arrangement, Option [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year)		10 years
The 2015 Omnibus Equity Incentive Plan [Member] | Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)		4 years