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Note 5 - Fair Value Measurements - Liability Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Details) - Contingent Consideration [Member] - Fair Value, Inputs, Level 3 [Member]
$ in Thousands
3 Months Ended
Sep. 30, 2019
USD ($)
Fair value at the beginning of period $ 12,600
Purchase price contingent consideration (Note 4) 0
Change in fair value of contingent consideration 700
Payments 0
Fair value at the end of period $ 13,300