Condensed Consolidated Balance Sheets (USD $)	Jun. 30, 2011	Mar. 31, 2011
Current assets:
Cash and cash equivalents	$ 7,056,604	$ 9,278,443
Restricted cash	91,317	91,169
Accounts receivable, net of allowances of $7,700 at June 30, 2011 and $9,100 at March 31, 2011, respectively	75,945	55,794
Inventories	44,963	44,224
Other current assets	387,905	528,045
Total current assets	7,656,734	9,997,675
Property and equipment, net	658,887	669,580
Intangible assets, net	356,470	354,854
Deposits and other assets	9,358	9,358
Total assets	8,681,449	11,031,467
Current liabilities:
Accounts payable and accrued expenses	448,658	506,887
Accrued compensation and related expenses	531,413	402,746
Current portion of convertible debentures payable, net of discount of $135,696 at June 30, 2011 and $197,226 at March 31, 2011, respectively	1,894,872	1,979,402
Line of credit and accrued interest	90,375	90,388
Current portion of related party notes payable	96,000	102,000
Derivative liabilities	122,214	156,497
Total current liabilities	3,183,532	3,237,920
Related party notes payable and accrued interest, net of current portion	1,412,006	1,423,412
Convertible debentures payable, net of current portion and discount of $0 at June 30, 2011 and $8,842 at March 31, 2011, respectively	0	421,726
Total liabilities	4,595,538	5,083,058
Stockholders' equity:
Common stock, $0.001 par value; 250,000,000 shares authorized; 27,712,122 and 27,504,604 shares issued and outstanding at June 30, 2011 and March 31, 2011, respectively	27,712	27,505
Additional paid-in capital	58,208,140	58,016,991
Accumulated deficit	(54,149,941)	(52,096,087)
Total stockholders' equity	4,085,911	5,948,409
Total liabilities and stockholders' equity	$ 8,681,449	$ 11,031,467