Note 9 - Income Taxes (Details Textual) - USD ($)	1 Months Ended	3 Months Ended		9 Months Ended
	Mar. 31, 2017	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Sep. 30, 2013
Income Tax Expense (Benefit)		$ (1,465,000)	$ (285,000)	$ (6,015,000)	$ (525,000)
Unrecognized Tax Benefits, Accumulated Reduction	$ 743,000
Deferred Tax Liability, Reversal	$ 352,000
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest		$ (2,816,000)	$ (623,000)	$ (5,858,000)	$ (606,000)
Liability for Uncertainty in Income Taxes, Noncurrent						$ 2,655,000
Effective Income Tax Rate Reconciliation, Percent				103.00%	87.00%