Note 3 - Accumulated Other Comprehensive Loss (Detail) - Components of Accumulated Other Comprehensive Loss (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Balance, effect of foreign currency translation	$ (2,273)	$ (2,228)	$ (2,133)
Balance, minimum pension liability	(4,339)	(3,675)	(3,219)
Balance, accumulated other comprehensive loss	(6,612)	(5,903)	(5,352)
Change in period, effect of foreign currency translation	(45)	(95)
Change in period, minimum pension liability	(591)	(439)
Change in period, accumulated other comprehensive loss	(636)	(534)
Tax effect of change in period, minimum pension liability	(73)	(17)
Tax effect of change in period, accumulated other comprehensive loss	$ (73)	$ (17)