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Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)
In Thousands
6 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Operating activities:  
Net income$ 8,484$ 2,435
Adjustments to reconcile net income to net cash used by operating activities:  
Depreciation719576
Amortization2166
Amortization of unrecognized prior service cost and actuarial losses195145
Discount accretion on investments(4)(32)
Stock-based compensation expense320184
Gain (loss) on disposal of property, plant and equipment4(10)
Deferred income taxes174156
(Increase) decrease in operating assets:  
Accounts receivable(9,384)(1,847)
Unbilled revenue149(972)
Inventories1,6292,109
Prepaid expenses and other current and non-current assets(62)(259)
Prepaid pension asset(416)(388)
Increase (decrease) in operating liabilities:  
Accounts payable(3,727)121
Accrued compensation, accrued expenses and other current and non-current liabilities764(864)
Customer deposits(3,171)(3,231)
Income taxes payable/receivable504(357)
Long-term portion of accrued compensation, accrued pension liability and accrued postretirement benefits2733
Net cash used by operating activities(3,579)(2,195)
Investing activities:  
Purchase of property, plant and equipment(1,494)(689)
Proceeds from disposal of property, plant and equipment414
Purchase of investments(14,398)(114,888)
Redemption of investments at maturity33,220120,920
Net cash provided by investing activities17,3325,357
Financing activities:  
Principal repayments on capital lease obligations(38)(33)
Issuance of common stock66104
Dividends paid(396)(396)
Purchase of treasury stock(8)(721)
Excess tax deduction on stock awards7252
Net cash used by financing activities(304)(994)
Effect of exchange rate changes on cash2942
Net increase in cash and cash equivalents13,4782,210
Cash and cash equivalents at beginning of year19,5654,530
Cash and cash equivalents at end of year$ 33,043$ 6,740