Share-Based Compensation: (Tables)

12 Months Ended

Sep. 30, 2015

1998 Plan

Share-based compensation

Summary of option activity

			Weighted
			Average		Aggregate
			Exercise		Intrinsic
	Options		Price		Value
Outstanding at September 30, 2012	376,200		$	8.62	$	—
Granted	—		—		—
Exercised	(226,800	)	4.63		174,112
Cancelled	(4,900	)	11.42		—
Outstanding at September 30, 2013	144,500		$	12.79	$	—
Granted	—		—		—
Exercised	(12,000	)	7.40		8,604
Cancelled	(70,500	)	16.25		—
Outstanding at September 30, 2014	62,000		$	9.91	$	—
Granted	—		—		—
Exercised	—		—		—
Cancelled	(9,000	)	16.25		—
Outstanding at September 30, 2015	53,000		$	8.83	$	—
Vested	53,000		$	8.83	$	—
Options exercisable at September 30, 2015	53,000		$	8.83	$	—

Summary of information about stock options

			Options Outstanding				Options Exercisable
Range of Exercise Prices			Outstanding As of September 30, 2015	Weighted- Average Remaining Contractual Life	Weighted- Average Exercise Price		As of September 30, 2015	Weighted- Average Exercise Price
$   0.00	-	$   5.00	—	—	$	—	—	$	—
$   5.01	-	$  10.00	30,000	2.396	6.270		30,000	6.270
$  10.01	-	$  15.00	23,000	0.333	12.166		23,000	12.166
			53,000	1.501	$	8.83	53,000	$	8.83

2009 Plan

Share-based compensation

Summary of option activity

			Weighted
			Average		Aggregate
			Exercise		Intrinsic
	Options		Price		Value
Outstanding at September 30, 2012	460,000		$	4.45	$	—
Granted	250,000		4.06		—
Exercised	(27,999	)	3.78		118,802
Cancelled	(1,667	)	3.78		—
Outstanding at September 30, 2013	680,334		$	3.32	$	—
Granted	—		—		—
Exercised	(44,666	)	3.78		178,823
Cancelled	(10,500	)	3.78		—
Outstanding at September 30, 2014	625,168		$	3.28	$	3,153,696
Granted	—		—		—
Exercised	(20,000	)		1.95	15,200
Cancelled	(13,000	)		2.37	—
Outstanding at September 30, 2015	592,168		$	3.35	$	—
Vested and expected to vest	592,168		$	3.35	$	—
Options exercisable at September 30, 2015	508,834		$	3.23	$	—

Summary of information about stock options

Options Outstanding					Options Exercisable
Range of Exercise Prices	Outstanding As of September 30, 2015	Weighted- Average Remaining Contractual Life	Weighted- Average Exercise Price		As of September 30, 2015	Weighted- Average Exercise Price
$ 0.00 - $ 5.00	592,168	6.7	$	3.35	508,834	$	3.23

Schedule of fair value assumptions used to record compensation expense

	Fiscal Year Ended September 30,
	2015 (1)		2014 (1)		2013
Expected dividend rate	—		—		—
Expected volatility	—	%	—	%	64.6	%
Weighted average risk-free interest rate	—	%	—	%	1.0	%
Expected lives (years)	—		—		7.6

(1) The Company did not grant any options in fiscal 2015 and fiscal 2014.