CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash flows provided by (used in) operating activities:
Net loss	$ (2,330)	$ (10,223)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	2,228	2,765
Stock-based compensation	3,301	2,534
Change in fair value of compound embedded derivative liability	(3,773)	(2,491)
Loss (gain) on disposal of assets	650	(45)
Loss on extinguishment of debt, net	0	3,794
Interest paid in kind	0	415
Amortization of debt issuance costs	204	276
Amortization of debt discounts	1,751	1,468
Accretion of debt premiums	(117)	(80)
Change in operating assets and liabilities:
Accounts receivable	(1,134)	3,287
Inventory	6,062	2,325
Prepaids and other assets	441	1,108
Accounts payable	36	(3,559)
Accrued expenses and other liabilities	(811)	(3,438)
Deferred revenue	(1,298)	(4,807)
Net cash provided by (used in) operating activities	5,210	(6,671)
Cash flows used in investing activities:
Capital expenditures	(536)	(1,915)
Payments under licensing agreements	(781)	(1,263)
Net cash used in investing activities	(1,317)	(3,178)
Cash flows used in financing activities:
Proceeds from the exercise of stock options	16	0
Payment of senior debt	0	(8,000)
Cash restricted for payment of senior debt	0	(1,500)
Debt issuance costs	0	(60)
Repurchase and retirement of restricted stock units for payroll taxes	(633)	(554)
Capital lease obligations	(8)	(8)
Net cash used in financing activities	(625)	(10,122)
Net increase (decrease) in cash	3,268	(19,971)
Cash at beginning of period	17,318	38,127
Cash at end of period	20,586	18,156
Cash paid during the year for:
Interest	4,919	5,249
Income taxes	1,474	511
Non cash investing and financing activities:
Common stock issued under ESPP	868	0
Common stock issued in exchange for Series B Preferred Stock	0	3
Residual value allocated to the equity conversion feature	0	2,490
Premium related to Term B Loan issued in debt exchange	$ 0	$ 2,572