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v3.21.1

Note 1 - Description of Business and Summary of Significant Accounting Policies (Details Textual) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended | 15 Months Ended |  |
--- | --- | --- | --- | --- | ---
Mar. 31, 2021 USD ($) $ / shares | Dec. 31, 2020 $ / shares | Sep. 30, 2020 $ / shares | Jun. 30, 2020 USD ($) $ / shares | Mar. 31, 2020 USD ($) $ / shares | Dec. 31, 2019 $ / shares | Sep. 30, 2019 $ / shares | Jun. 30, 2019 $ / shares | Mar. 31, 2021 USD ($) $ / shares | Mar. 31, 2020 USD ($) $ / shares | Mar. 31, 2019 USD ($) $ / shares | Jun. 30, 2020 USD ($) | Apr. 01, 2020 USD ($) | Aug. 12, 2019 USD ($)
Number of Operating Segments |  |  |  |  |  |  |  |  | 4 |  |  |  |  |
Accounts Receivable, Credit Loss Expense (Reversal) |  |  |  |  |  |  |  |  | $ 100 | $ 1 | $ 13 |  |  |
Payments to Acquire Businesses, Net of Cash Acquired, Total |  |  |  |  |  |  |  |  | 0 | 184,102 | 4,840 |  |  |
Goodwill, Impairment Loss |  |  |  |  |  |  |  |  | 0 | 258 |  |  |  |
Cost of Revenue, Total |  |  |  |  |  |  |  |  | 46,923 | 52,325 | 42,219 |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax, Total | $ 16,116 |  |  |  | $ (10,369) |  |  |  | 16,116 | (10,369) |  |  |  |
Operating Income (Loss), Total |  |  |  |  |  |  |  |  | $ 12,358 | $ 7,923 | $ 9,781 |  |  |
Earnings Per Share, Diluted, Total (in dollars per share) | $ / shares | $ 0.74 | $ (0.89) | $ 0.51 | $ 0.26 | $ (0.37) | $ (1.03) | $ 0.73 | $ 1.14 | $ 0.64 | $ 0.41 | $ 1.86 |  |  |
Retained Earnings (Accumulated Deficit), Ending Balance | $ 72,459 |  |  |  | $ 72,359 |  |  |  | $ 72,459 | $ 72,359 |  |  |  |
Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Retained Earnings (Accumulated Deficit), Ending Balance |  |  |  |  |  |  |  |  |  |  |  |  | $ (9) |
Immaterial Error Correction [Member] | Revision of Prior Period, Error Correction, Adjustment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of Revenue, Total |  |  |  |  |  |  |  |  |  | (429) |  | $ (372) |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax, Total |  |  |  |  | $ (429) |  |  |  |  | (429) |  |  |  |
Operating Income (Loss), Total |  |  |  |  |  |  |  |  |  | $ 429 |  |  |  |
Earnings Per Share, Diluted, Total (in dollars per share) | $ / shares |  |  |  | $ 0.04 |  |  |  |  |  | $ 0.10 |  |  |  |
Net Income (Loss) Attributable to Parent, Total |  |  |  |  |  |  |  |  |  |  |  | 192 |  |
Retained Earnings (Accumulated Deficit), Ending Balance |  |  |  | $ 192 |  |  |  |  |  |  |  | $ 192 |  |
Equity Plan 2014 [Member] | Director [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year) |  |  |  |  |  |  |  |  | 1 year |  |  |  |  |
Equity Plan 2014 [Member] | Share-based Payment Arrangement, Option [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year) |  |  |  |  |  |  |  |  | 6 years |  |  |  |  |
The Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 1.375% |  |  |  | 1.375% |  |  |  | 1.375% | 1.375% |  |  |  |
Interest Expense, Debt, Total |  |  |  |  |  |  |  |  | $ 7,769 | $ 4,816 |  |  |  |
The Notes [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 1.375% |  |  |  |  |  |  |  | 1.375% |  |  |  |  | 1.375%
Debt Instrument, Convertible, Carrying Amount of Equity Component, Net of Issuance Costs | $ 30,092 |  |  |  |  |  |  |  | $ 30,092 |  |  |  |  |
Debt Instrument, Convertible, Carrying Amount of Equity Component | 31,073 |  |  |  | $ 31,073 |  |  |  | 31,073 | $ 31,073 |  |  |  | $ 31,073
Debt Issuance Costs, Gross, Equity Component | 981 |  |  |  |  |  |  |  | 981 |  |  |  |  |
Debt Instrument, Unamortized Discount, Equity Component, Total | $ 22,799 |  |  |  |  |  |  |  | 22,799 |  |  |  |  |
Interest Expense, Debt, Total |  |  |  |  |  |  |  |  | $ 7,293 |  |  |  |  |
Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) |  |  |  |  |  |  |  |  | 5 years |  |  |  |  |
Minimum [Member] | Equity Plan 2014 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year) |  |  |  |  |  |  |  |  | 3 years |  |  |  |  |
Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) |  |  |  |  |  |  |  |  | 15 years |  |  |  |  |
Maximum [Member] | Equity Plan 2014 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year) |  |  |  |  |  |  |  |  | 5 years |  |  |  |  |

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