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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
9 Months Ended
Jan. 31, 2019
Jan. 31, 2018
Cash flows from operating activities:    
Net earnings $ 2,885 $ 3,905
Adjustments to reconcile net earnings to net cash provided by (used in) operating activities:    
Depreciation 1,908 2,104
Bad debt provision 57 71
Stock based compensation expense 393 276
Provision for deferred income taxes 355 639
Change in assets and liabilities:    
Decrease (increase) in receivables 4,674 (1,025)
Decrease (increase) in inventories 990 (2,790)
(Decrease) increase in accounts payable and other accrued expenses (4,879) 2,035
Decrease in deferred revenue (434) (3,847)
Other, net (1,415) (2,013)
Net cash provided by (used in) by operating activities 4,534 (645)
Cash flows from investing activities:    
Capital expenditures (2,290) (1,907)
Net cash used in investing activities (2,290) (1,907)
Cash flows from financing activities:    
Dividends paid (1,507) (1,331)
Dividends paid to holders of noncontrolling interest in subsidiaries (51) (74)
Proceeds from short-term borrowings 46,103 44,639
Repayments on short-term borrowings (44,870) (43,452)
Payments on long-term debt and lease obligations (880) (626)
Net proceeds from exercise of stock options (29) 8
Net cash used in financing activities (1,234) (836)
Effect of exchange rate changes on cash and cash equivalents (591) 118
Increase (decrease) in cash, cash equivalents and restricted cash 419 (3,270)
Cash, cash equivalents and restricted cash, beginning of period 10,958 13,941
Cash, cash equivalents and restricted cash, end of period $ 11,377 $ 10,671