Consolidated Balance Sheets (USD $)	Sep. 30, 2012	Sep. 30, 2011
Current assets:
Cash and cash equivalents	$ 13,859,505	$ 13,870,762
Restricted cash		606,250
Accounts receivable, less allowance of $4,372 and $0 for doubtful accounts	5,517,894	5,098,148
Inventories, net	3,112,489	2,735,520
Prepaid expenses and other	441,823	663,601
Assets of discontinued operations		6,250
Total current assets	22,931,711	22,980,531
Property and equipment, net	212,863	75,468
Intangible assets, net	158,457	225,969
Prepaid expenses and other - noncurrent	1,102,016	1,218,750
Total assets	24,405,047	24,500,718
Current liabilities:
Accounts payable	995,719	1,040,202
Accrued liabilities	623,742	2,899,211
Liabilities of discontinued operations		9,263
Total current liabilities	1,619,461	3,948,676
Other liabilities - noncurrent	363,817	276,744
Total liabilities	1,983,278	4,225,420
Commitments and contingencies (Note 12)
Stockholders' equity:
Preferred stock, $0.00001 par value; 5,000,000 shares authorized; none issued and outstanding
Common stock, $0.00001 par value; 50,000,000 shares authorized; 32,374,499 shares issued and outstanding each period	324	324
Additional paid-in capital	86,358,011	85,673,560
Accumulated deficit	(63,936,566)	(65,398,586)
Total stockholders' equity	22,421,769	20,275,298
Total liabilities and stockholders' equity	$ 24,405,047	$ 24,500,718