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v3.8.0.1

Consolidated Statements of Cash Flows - USD ($) | 12 Months Ended
--- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2015
Cash flows from operating activities: |  |  |
Net income (loss) | $ 8,418,000 | $ 7,043,000 | $ (1,819,000)
Adjustments to reconcile net income (loss) to cash provided by operating activities: |  |  |
Purchase of marketable securities | (492,674,000) | (550,295,000) | (384,668,000)
Proceeds from sale and maturity of marketable securities | 491,852,000 | 549,027,000 | 383,773,000
Change in value of marketable securities | (1,126,000) | (314,000) | 3,649,000
Deferred and other income taxes | 1,285,000 | 1,647,000 | (2,024,000)
Depreciation and amortization | 1,128,000 | 1,397,000 | 1,385,000
Provision for doubtful accounts | 115,000 | 105,000 | 60,000
Loss on disposal of assets | 7,000 | 65,000 | 1,000
Stock-based compensation | 71,000 | 37,000 | 253,000
Changes in assets and liabilities: |  |  |
Accounts receivable | (189,000) | (341,000) | 514,000
Costs and estimated earnings in excess of billings | (1,847,000) | (2,525,000) | (2,052,000)
Inventories | (5,053,000) | 1,136,000 | 968,000
Prepaid expenses | (62,000) | (781,000) | 32,000
Accounts payable | (123,000) | (86,000) | 582,000
Customer deposits | 4,144,000 | 66,000 | 4,094,000
Accrued expenses | 162,000 | 812,000 | (236,000)
Total adjustments | (2,310,000) | (50,000) | 6,331,000
Cash flows provided by operating activities | 6,108,000 | 6,993,000 | 4,512,000
Cash flows from investing activities: |  |  |
Capital expenditures | (1,624,000) | (306,000) | (689,000)
Proceeds from sale of property and equipment | 7,000 |  |
Cash flows used in investing activities | (1,617,000) | (306,000) | (689,000)
Cash flows from financing activities: |  |  |
Proceeds from stock option exercises | 223,000 | 380,000 | 136,000
Cash flows provided by financing activities | 223,000 | 380,000 | 136,000
Net increase in cash | 4,714,000 | 7,067,000 | 3,959,000
Cash and cash equivalents at: |  |  |
Beginning of year | 18,219,000 | 11,152,000 | 7,193,000
End of year | $ 22,933,000 | $ 18,219,000 | $ 11,152,000

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