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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Apr. 30, 2013
Apr. 30, 2012
Apr. 30, 2011
Cash Flows from Operating Activities      
Net earnings $ 3,681 $ 1,800 $ 2,098
Adjustments to reconcile net earnings to net cash provided by operating activities:      
Depreciation 2,653 2,664 2,487
Bad debt provision 34 214 60
Non-cash stock option expense 239 261 225
Provision for deferred income tax expense (benefit) (526) (1,539) 223
(Increase) decrease in receivables (2,674) 4,663 (1,237)
Increase in inventories (1,443) (1,294) (2,116)
Increase (decrease) in accounts payable and other accrued expenses 2,604 (459) (672)
(Decrease) increase in deferred revenue (874) (521) 522
Other, net 133 1,134 (319)
Net cash provided by operating activities 3,827 6,923 1,271
Cash Flows from Investing Activities      
Capital expenditures (2,405) (1,435) (5,247)
Decrease (increase) in restricted cash 13 (151) (9)
Net cash used in investing activities (2,392) (1,586) (5,256)
Cash Flows from Financing Activities      
Dividends paid (1,035) (1,031) (1,030)
Dividends paid to noncontrolling interest in subsidiaries (744)    
Net increase in short-term borrowings 181 228 1,716
Proceeds from long-term debt     4,000
Payments on capital leases (36) (83) (82)
Payments on long-term debt (200) (200) (133)
Net proceeds from exercise of stock options (including tax benefit) 116   34
Net cash (used in) provided by financing activities (1,718) (1,086) 4,505
Effect of exchange rate changes on cash, net (94) (465) 160
(Decrease) increase in Cash and Cash Equivalents (377) 3,786 680
Cash and Cash Equivalents at Beginning of Year 6,188 2,402 1,722
Cash and Cash Equivalents at End of Year 5,811 6,188 2,402
Supplemental Disclosure of Cash Flow Information      
Interest paid 374 444 174
Income taxes paid $ 1,722 $ 418 $ 1,474