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Note 6 - Acquisitions - Estimated Fair Values of the Acquired Assets (Details) - USD ($) $ in Thousands	Aug. 19, 2021	Jul. 24, 2020	Jan. 10, 2019	Dec. 31, 2021	Dec. 31, 2020
Goodwill				$ 7,447	$ 7,447
Total Cloud [Member]
Purchase Consideration	$ 1,200
Purchased Intangible Assets	1,200
Goodwill	$ 0
Spell Security [Member]
Purchase Consideration		$ 1,500
Purchased Intangible Assets		1,500
Goodwill		$ 0
Adya [Member]
Purchase Consideration			$ 1,000
Purchased Intangible Assets			900
Goodwill			$ 100

X

- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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