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Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) | 9 Months Ended
--- | ---
Jun. 30, 2013 | Jun. 30, 2012
Operating Activities: |  |
Net (loss) income | $ (1,668,164) | $ 222,434
Adjustments to reconcile net (loss) income to net cash provided by operating activities: |  |
Depreciation and amortization | 106,485 | 66,945
Provision for doubtful accounts | (400) |
Warranty provision | (834) | (31,885)
Inventory obsolescence | (219,419) | 112,189
Share-based compensation | 582,058 | 476,779
Loss on sale or impairment of patents | 5,138 | 18,205
Changes in operating assets and liabilities: |  |
Accounts receivable | 4,351,696 | 2,994,406
Inventories | (1,913,407) | (487,687)
Prepaid expenses and other | (24,674) | (72,830)
Prepaid expenses and other - noncurrent | 140,625 | 69,859
Accounts payable | (86,671) | (447,196)
Warranty settlements | (11,585) | (19,199)
Accrued and other liabilities | (30,927) | (2,255,563)
Net cash provided by operating activities | 1,229,921 | 646,457
Investing Activities: |  |
Purchase of equipment | (134,349) | (154,139)
Patent costs paid | (2,734) | (2,365)
Net cash used in investing activities | (137,083) | (156,504)
Financing Activities: |  |
Proceeds from exercise of stock options | 105,228 |
Net cash provided by financing activities | 105,228 |
Net increase in cash and cash equivalents | 1,198,066 | 489,953
Cash and cash equivalents, beginning of period | 13,859,505 | 13,870,762
Cash and cash equivalents, end of period | 15,057,571 | 14,360,715
Supplemental Disclosure of Cash Flow Information |  |
Cash (refunded) paid for taxes | $ (38,724) | $ 60,015

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