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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) | 12 Months Ended
--- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2013
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
Net income | $ (5,866,134) | $ 200,268 | $ 1,886,917
Adjustments to reconcile net income to net cash provided by (used in) operating activities: |  |  |
Depreciation and amortization | 570,314 | 576,478 | 545,620
Share-based compensation expense: |  |  |
Stock options | 316,369 | 660,136 | 712,395
Stock awards | 149,952 | 150,055 | 200,008
Tax adjustment from share-based compensation | (54,055) | (252,688) | (33,301)
Provision for loss on unbilled receivables, net of recovery | 1,237,841 | 3,680,679 |
(Gain) loss on disposal of property and equipment | (61,817) | 78 | (11,536)
Excess and obsolete inventory cost | 225,742 | 196,205 | 48,450
Deferred income taxes | 2,743,616 | (648,456) | (215,424)
(Increase) decrease in: |  |  |
Accounts receivable | 2,025,168 | 69,571 | (510,922)
Unbilled receivables, net | 2,267,678 | (4,566,965) | (4,944,006)
Inventories | 647,728 | (1,289,478) | (624,416)
Prepaid expenses and other current assets | (250,331) | (107,899) | (206,002)
Other non-current assets | (75,300) | 105,886 | (116,333)
Increase (decrease) in: |  |  |
Accounts payable | (966,671) | 30,515 | 1,232,673
Accrued expenses | (1,323,609) | 557,222 | 744,085
Income taxes payable | (415,328) | (152,608) | 118,502
Deferred revenue | 230,426 | 78,795 | (979,027)
Net cash provided by (used in) operating activities | 1,401,589 | (712,206) | (2,152,317)
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |
Purchases of property and equipment | (188,509) | (719,523) | (605,301)
Proceeds from the sale of property and equipment | 69,545 | 601 | 18,500
Net cash (used in) investing activities | (118,964) | (718,922) | (586,801)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Proceeds from exercise of stock options | 39,000 | 259,505 | 1,156,039
Purchases of treasury stock | (254,170) |  | (696)
Dividend paid |  |  | (25,007,519)
Net cash (used in) provided by financing activities | (215,170) | 259,505 | (23,852,176)
Net increase (decrease) in cash and cash equivalents | 1,067,455 | (1,171,623) | (26,591,294)
Cash and cash equivalents, beginning of period | 15,214,584 | 16,386,207 | 42,977,501
Cash and cash equivalents, end of period | $ 16,282,039 | 15,214,584 | 16,386,207
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION |  |  |
Cash paid for income tax |  | $ 770,000 | $ 250,000

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