CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY AND COMPREHENSIVE INCOME (LOSS) (USD $)	Total	Common Stock	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Income (Loss)	Comprehensive Income (Loss)
Balance at Sep. 30, 2009	$ 68,819,897	$ 56,840,856	$ 14,832,213	$ (2,853,172)
Balance (in shares) at Sep. 30, 2009		12,190,367
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) for the year	(253,535)		(253,535)		(253,535)
Foreign currency translation adjustment	(117,457)			(117,457)	(117,457)
Unrealized gain (loss) on available-for-sale securities, net of tax	84,871			84,871	84,871
Subtotal-comprehensive income (loss)	(286,121)				(286,121)
Tax benefit of stock options exercised	39,970	39,970
Stock based compensation	1,481,102	1,481,102
Common stock repurchased	(1,202,339)	(1,202,339)
Common stock repurchased (in shares)		(132,915)
Stock option exercises	40,942	40,942
Stock option exercises (in shares)		15,000
Balance at Sep. 30, 2010	68,893,451	57,200,531	14,578,678	(2,885,758)
Balance (in shares) at Sep. 30, 2010		12,072,452
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) for the year	(1,315,304)		(1,315,304)		(1,315,304)
Foreign currency translation adjustment	(1,201,334)			(1,201,334)	(1,201,334)
Unrealized gain (loss) on available-for-sale securities, net of tax	(28,785)			(28,785)	(28,785)
Subtotal-comprehensive income (loss)	(2,545,423)				(2,545,423)
Stock based compensation	1,495,773	1,495,773
Restricted shares issued (in shares)		40,000
Common stock repurchased	(2,513,871)	(2,513,871)
Common stock repurchased (in shares)		(284,585)
Stock option exercises	646,917	646,917
Stock option exercises (in shares)		313,950
Balance at Sep. 30, 2011	65,976,847	56,829,350	13,263,374	(4,115,877)
Balance (in shares) at Sep. 30, 2011	12,141,817	12,141,817
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) for the year	2,050,484		2,050,484		2,050,484
Foreign currency translation adjustment	(13,198)			(13,198)	(13,198)
Unrealized gain (loss) on available-for-sale securities, net of tax	206,705			206,705	206,705
Subtotal-comprehensive income (loss)	2,243,991				2,243,991
Stock based compensation	983,286	983,286
Restricted shares issued (in shares)		61,883
Restricted shares cancelled (in shares)		(2,000)
Common stock repurchased	(1,088,619)	(1,088,619)
Common stock repurchased (in shares)		(150,900)
Stock option exercises	180,291	180,291
Stock option exercises (in shares)		69,250
Balance at Sep. 30, 2012	$ 68,295,796	$ 56,904,308	$ 15,313,858	$ (3,922,370)
Balance (in shares) at Sep. 30, 2012	12,120,050	12,120,050