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Unaudited Consolidated Statements Of Cash Flows (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Cash flows from operating activities:    
Net income $ 461 $ 389
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 89 92
Amortization of intangibles 21 28
Foreign exchange loss (gain) 16 4
Non-cash changes in accounts receivable 9 36
Stock-based compensation expense on stock options and restricted stock awards 37 46
Deferred income taxes 65  
Increase in cash surrender value of life insurance (27) (26)
Changes in operating assets and liabilities:    
(Increase) decrease in accounts receivable (4,397) 555
(Increase) decrease in inventories 1,734 (318)
Decrease in refundable income taxes 23 234
Increase in other current assets (811) (335)
Decrease in other assets 16 1
Increase in accounts payable and accrued expenses 695 107
Increase (decrease) in deferred revenue 1,047 (72)
Increase (decrease) in pension and retirement plans liability (27) 42
Increase (decrease) in income taxes payable 99 (7)
Increase in other long term liabilities 7  
Net cash provided by (used in) operating activities (943) 776
Cash flows from investing activities:    
Life insurance premiums paid (80) (3)
Purchases of property, equipment and improvements (85) (111)
Net cash used in investing activities (165) (114)
Cash flows from financing activities:    
Proceeds from issuance of shares under employee stock purchase plan   74
Purchase of common stock (58) (191)
Net cash used in financing activities (58) (117)
Effects of exchange rate on cash (71) (107)
Net increase (decrease) in cash and cash equivalents (1,237) 438
Cash and cash equivalents, beginning of period 15,874 15,531
Cash and cash equivalents, end of period 14,637 15,969
Supplementary cash flow information:    
Cash paid for income taxes 99 245
Cash paid for interest $ 85 $ 85