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Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Cash flows from operating activities:    
Net income $ 2,506 $ 2,604
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation 553 570
Amortization of intangibles 120 129
Loss on disposal of property, equipment and improvements 5 51
Foreign exchange loss 3 134
Non-cash changes in accounts receivable 47 27
Non-cash changes in inventory 294 602
Stock-based compensation expense on stock options and restricted stock awards 577 414
Deferred income taxes 262 (18)
(Increase) decrease in cash surrender value of life insurance (135) 210
Changes in operating assets and liabilities:    
Increase in accounts receivable (8,095) (8)
(Increase) decrease in officer life insurance settlement receivable 413 (413)
Increase in inventories (660) (814)
(Increase) decrease in deferred costs (797) 23
Decrease in refundable income taxes 34 44
Decrease in other assets 3 322
Increase (decrease) in accounts payable and accrued expenses 6,483 (1,648)
Increase in deferred revenue 1,219 1,769
Increase (decrease) in pension and retirement plans liability (291) 606
Increase in income taxes payable 258 167
Increase (decrease) in other long term liabilities (140) 233
Net cash provided by operating activities 2,659 5,004
Cash flows from investing activities:    
Life insurance premiums paid (150) (161)
Purchases of property, equipment and improvements (358) (735)
Net cash used in investing activities (508) (896)
Cash flows from financing activities:    
Dividends paid (1,722) (1,670)
Proceeds from issuance of shares under equity compensation plans 216 263
Net cash used in financing activities (1,506) (1,407)
Effects of exchange rate on cash 137 (779)
Net increase in cash and cash equivalents 782 1,922
Cash and cash equivalents, beginning of period 13,103 11,181
Cash and cash equivalents, end of period 13,885 13,103
Supplementary cash flow information:    
Cash paid for income taxes 1,142 334
Cash paid for interest $ 75 $ 86