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Note 7 - Indebtedness (Details Textual) $ / shares in Units, $ in Thousands					3 Months Ended			9 Months Ended
	Jan. 01, 2025 USD ($)	Apr. 05, 2024 USD ($)	Mar. 05, 2021 USD ($)	Aug. 12, 2019 USD ($) $ / shares	Dec. 31, 2024 USD ($)	Sep. 30, 2024	Dec. 31, 2023 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Mar. 31, 2024 USD ($)	Oct. 05, 2023 USD ($)
Long-Term Debt					$ 72,187			$ 72,187
Repayments of Debt								26,313	$ 22,000
Gain (Loss) on Extinguishment of Debt					(0)		$ (0)	2,887	$ (0)
The Credit Facility Term Loan [Member]
Debt Instrument, Fee Amount					1,987			1,987
Senior Secured Credit Agreement [Member]
Debt Instrument, Term (Year)			4 years
Long-Term Debt					27,000			27,000
Line of Credit Facility, Remaining Borrowing Capacity					98,000			98,000
Senior Secured Credit Agreement [Member] | Prepaid Expenses, Other and Other Assets [Member]
Debt Issuance Costs, Net					1,278			1,278		$ 321
Senior Secured Credit Agreement [Member] | Subsequent Event [Member]
Repayments of Lines of Credit	$ 4,500
Senior Secured Credit Agreement [Member] | The Credit Facility Term Loan [Member]
Debt Instrument, Fee Amount					$ 745			745
Senior Secured Credit Agreement [Member] | Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate					3.50%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage						0.35%
Senior Secured Credit Agreement [Member] | Maximum [Member] | The Credit Facility Term Loan [Member]
Line of Credit Facility, Maximum Borrowing Capacity			$ 75,000								$ 125,000
Senior Secured Credit Agreement [Member] | Minimum [Member]
Debt Instrument, Basis Spread on Variable Rate					1.50%
Fixed Charge Coverage Ratio		1.25
Senior Leverage Ratio		3.5
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage						0.20%
Senior Secured Credit Agreement [Member] | Minimum [Member] | The Credit Facility Term Loan [Member]
Line of Credit Facility, Maximum Borrowing Capacity			25,000
Senior Secured Credit Agreement [Member] | Swingline Loan [Member] | Maximum [Member]
Line of Credit Facility, Maximum Borrowing Capacity			5,000
Senior Secured Credit Agreement [Member] | Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity			75,000
Debt Instrument, Fee Amount					$ 1,242			$ 1,242
Senior Secured Credit Agreement [Member] | Letter of Credit [Member] | Maximum [Member]
Line of Credit Facility, Maximum Borrowing Capacity			$ 2,500
The Credit Facility Term Loan [Member]
Debt Instrument, Interest Rate, Effective Percentage					7.50%			7.50%
Debt Instrument, Covenant, Maximum Total Leverage Ratio for the First Five Testing Dates		4.5
Debt Instrument, Covenant, Maximum Total Leverage Ratio for the Sixth, Seventh, and Eighth Testing Dates		4
Debt Instrument, Covenant, Maximum Total Leverage Ratio Following the Ninth Testing date		3.5
Term Loan [Member]
Principal Outstanding		$ 75,000			$ 72,187			$ 72,187		0
Debt Instrument, Periodic Payment, Principal					$ 938			$ 2,813
The Notes [Member] | Senior Notes [Member]
Debt Instrument, Interest Rate, Effective Percentage					1.90%			1.90%
Principal Outstanding					$ 97,500			$ 97,500		172,500
Long-Term Debt					97,163			97,163		171,198
Debt Issuance Costs, Net					337			337		$ 1,302
Debt Instrument, Face Amount				$ 172,500
Proceeds from Convertible Debt				$ 167,056
Debt Instrument, Interest Rate, Stated Percentage		1.375%		1.375%
Debt Instrument, Convertible, Conversion Ratio Per 1,000 Principal				3.5273
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares				$ 283.5
Outstanding 2025 Notes [Member]
Principal Outstanding					$ 97,500			97,500
Debt Instrument, Repurchased Face Amount		$ 75,000
Repayments of Debt		71,250
Interest Payable		$ 160
Gain (Loss) on Extinguishment of Debt								$ 2,887

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 15
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-15

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- Definition

Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 15
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-URI https://asc.fasb.org/1943274/2147482740/230-10-45-15

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(f))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

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