Note 6 - Summary of Expired Director Plans (Details) (USD $)	3 Months Ended
	Dec. 31, 2014
Outstanding Stock Options (in shares)	22,000
Weighted AverageShare Price (in dollars per share)	$ 5.30
Number of Stock Options Exercisable (in shares)	20,000
Weighted Average Share Price (in dollars per share)	$ 5.54
Exercise Price Range 1 [Member]
Range of Exercise Price, Lower Limit (in dollars per share)	$ 2.925
Range of Exercise Price, Upper Limit (in dollars per share)	$ 5.25
Outstanding Stock Options (in shares)	13,000
Weighted AverageShare Price (in dollars per share)	$ 3.28
Weighted Average Remaining Life	5 years 219 days
Number of Stock Options Exercisable (in shares)	11,000
Weighted Average Share Price (in dollars per share)	$ 3.35
Exercise Price Range 2 [Member]
Range of Exercise Price, Lower Limit (in dollars per share)	$ 6
Range of Exercise Price, Upper Limit (in dollars per share)	$ 7.25
Outstanding Stock Options (in shares)	5,000
Weighted AverageShare Price (in dollars per share)	$ 6.18
Weighted Average Remaining Life	3 years 109 days
Number of Stock Options Exercisable (in shares)	5,000
Weighted Average Share Price (in dollars per share)	$ 6.18
Exercise Price Range 3 [Member]
Range of Exercise Price, Lower Limit (in dollars per share)	$ 10.50
Range of Exercise Price, Upper Limit (in dollars per share)	$ 11
Outstanding Stock Options (in shares)	4,000
Weighted AverageShare Price (in dollars per share)	$ 10.75
Weighted Average Remaining Life	2 years 292 days
Number of Stock Options Exercisable (in shares)	4,000
Weighted Average Share Price (in dollars per share)	$ 10.75