Note 8 - Business Combinations (Details Textual) - USD ($)							3 Months Ended	12 Months Ended
	Dec. 01, 2021	Jan. 19, 2021	Dec. 10, 2020	Dec. 02, 2020	Oct. 12, 2020	Mar. 09, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Payments to Acquire Businesses, Net of Cash Acquired, Total								$ 4,705,000	$ 121,342,000	$ 27,018,000
Nurse Grid [Member]
Payments to Acquire Businesses, Net of Cash Acquired, Total						$ 21,500,000
Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value						3,623,000
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain							$ 1,200,000
Business Acquisition, Transaction Costs						200,000
Deferred Revenue Included in Net Tangible Assets, Book Value						157,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue						78,000
Write-down of Deferred Revenue						79,000
Payments to Acquire Businesses, Gross						$ 25,485,000
ShiftWizard [Member]
Payments to Acquire Businesses, Net of Cash Acquired, Total					$ 30,500,000
Business Acquisition, Transaction Costs					300,000
Deferred Revenue Included in Net Tangible Assets, Book Value					2,700,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue					1,601,000
Write-down of Deferred Revenue					1,100,000
Business Combination, Indemnification Asset and Liability, Related to Paycheck Protection, Program Loan as of Acquisition Date					$ 500,000
ANSOS Staff Scheduling Application [Member]
Payments to Acquire Businesses, Net of Cash Acquired, Total				$ 66,400,000
Business Acquisition, Transaction Costs				1,200,000
Deferred Revenue Included in Net Tangible Assets, Book Value				17,200,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue				13,873,000
Write-down of Deferred Revenue				3,300,000
Goodwill, Purchase Accounting Adjustments				$ 1,200,000
MyClinicalExchange [Member]
Business Acquisition, Transaction Costs			$ 100,000
Payments to Acquire Businesses, Gross			$ 4,400,000
ProcessDATA, Limited [Member]
Business Acquisition, Transaction Costs		$ 100,000
Payments to Acquire Businesses, Gross		$ 2,000,000.0
Rievent Technologies [Member]
Business Acquisition, Transaction Costs	$ 100,000
Payments to Acquire Businesses, Gross	4,000,000.0
Escrow Deposit	$ 400,000