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Note 12 - Equity Incentive Plan (Details Textual) - USD ($)		3 Months Ended			9 Months Ended
	Mar. 19, 2021	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020	Feb. 13, 2020	Jul. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)		69,721	0
Share-based Payment Arrangement, Expense		$ 1,526,000		$ 264,000	$ 2,485,000	$ 591,000
Severance Agreements [Member] \| Accrued Expense [Member]
Deferred Compensation Share-based Arrangements, Liability, Current		$ 100,000			$ 100,000
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)		55,000			90,728
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)		$ 7.60			$ 8.35
Share-based Payment Arrangement, Option [Member]
Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount		$ 500,000			$ 500,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)		3 years 109 days
Share-based Payment Arrangement, Expense		$ 100,000		7,000	300,000	14,000
Restricted Stock [Member]
Share-based Payment Arrangement, Expense		$ 1,300,000		$ 300,000	$ 2,100,000	$ 600,000
The 2015 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)							5,000,000	3,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)		4,603,990			4,603,990
The 2015 Plan [Member] \| Restricted Stock Units (RSUs) [Member]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)		2 years 73 days
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total		$ 600,000			$ 600,000
The 2015 Plan [Member] \| Restricted Stock [Member]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)		6 years 73 days
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount		$ 4,000,000			4,000,000
Neos 2015 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)	105,449
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)	69,721
Neos 2015 Plan [Member] \| Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted (in shares)	35,728
Non-plan [Member] \| Restricted Stock [Member]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)		5 years 109 days
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount		$ 1,100,000			$ 1,100,000
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number, Ending Balance (in shares)		158			158