Note 7 - Intangible Assets (Tables)

6 Months Ended

Mar. 31, 2018

Notes Tables

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	Intangible Assets
	March 31, 2018									September 30, 2017
	Customer Relationships			Developed Technology			Total			Customer Relationships			Developed Technology			Total
Gross intangibles	$	21,950,000		$	2,525,000		$	24,475,000		$	21,950,000		$	2,525,000		$	24,475,000
Accumulated amortization		(20,812,000	)		(2,415,000	)		(23,227,000	)		(19,174,000	)		(2,243,000	)		(21,417,000	)
	$	1,138,000		$	110,000		$	1,248,000		$	2,776,000		$	282,000		$	3,058,000