Annual report pursuant to Section 13 and 15(d)

Statements of Cash Flows

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Statements of Cash Flows - USD ($)
12 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2017
Cash flows from operating activities      
Net income $ 4,566,156 $ 4,274,547 $ 3,847,839
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization 2,178,409 2,047,746 1,622,094
Impairment of long-lived assets 0 0 643,604
Change in allowance for doubtful accounts 210,000
Amortization of discount on investments (71,652)
Deferred taxes (3,245) (339,141) 32,297
(Gain) loss on disposal of assets (17,691) 35,281
Stock-based compensation 1,729,025 2,003,207 2,319,975
Changes in operating assets and liabilities:      
Accounts receivable 3,492,619 (5,583,617) 761,569
Inventories, net 1,037,155 1,183,998 (80,412)
Other assets (10,469) 254,501 180,456
Accounts payable, accrued expenses and deferred rent 1,604,655 723,990 (3,064,650)
Net cash provided by operating activities 14,732,653 4,547,540 6,298,053
Cash flows from investing activities      
Purchases of property, plant and equipment and intangible assets (2,511,646) (1,189,853) (2,021,551)
Purchases of investments (20,311,393) (7,283,075) (17,630,075)
Proceeds from sale of property, plant, and equipment 83,052 5,100
Proceeds from maturities of investments 9,861,000 6,132,000 8,107,000
Business acquisition (10,350,000)
Net cash used in investing activities (12,962,039) (12,607,876) (11,539,526)
Cash flows from financing activities      
Repurchases of common stock (1,760,442) (3,647,314)
Proceeds from issuance of common stock under employee stock purchase plan 313,891 297,860 334,692
Proceeds from issuance of common stock upon exercise of stock options 2,604 24,012 28,717
Tax withholding related to vesting of restricted stock grants (553,165) (489,428) (952,832)
Net cash used in financing activities (236,670) (1,927,998) (4,236,737)
Increase (decrease) in cash and cash equivalents 1,533,944 (9,988,334) (9,478,210)
Cash and cash equivalents, beginning of year 8,547,777 18,536,111 28,014,321
Cash and cash equivalents, end of year 10,081,721 8,547,777 18,536,111
Supplemental disclosures for cash flow information      
Cash paid during the year for income taxes 1,683,113 719,694 1,471,203
Non-cash financing activities      
Cashless exercise of stock options $ 17,390 $ 5,782 $ 34,268