Note 6 - Acquisitions - Preliminary Consideration and Estimated Fair Value Assets Acquired and Liabilities Assumed (Details) - TKE [Member] $ in Thousands	Sep. 30, 2018 USD ($)
Cash	$ 1,066
Common stock of the Company	1,878
Contingent consideration, at fair value	1,757
Total consideration	$ 4,701

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 equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

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Amount of tangible or intangible assets, including a business or subsidiary of the acquirer transferred by the entity to the former owners of the acquiree. Excludes cash.

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