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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
3 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Cash flows from operating activities:    
Net income $ 4,230 $ 1,517
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 2,455 2,278
Stock-based compensation 739 540
Amortization of debt issuance costs 27 28
Change in inventory reserve 67 672
Deferred taxes (93) 90
Foreign currency adjustments (123) (176)
Adjustment to contingent consideration (192) 300
Cash provided by changes in operating assets and liabilities    
Accounts receivable, net 1,830 1,416
Inventories, net 529 (175)
Prepaid expenses and other (1,340) (1,711)
Accounts payable 494 170
Accrued liabilities and taxes payable (1,526) (1,747)
Unearned revenues (91) (84)
Contingent consideration (463) (437)
Net cash provided by operating activities 6,543 2,681
Cash flows from investing activities:    
Acquisitions (62)
Purchases of property, plant and equipment (300) (1,505)
Net cash used in investing activities (300) (1,567)
Cash flows from financing activities:    
Payments on debt (6,875) (4,250)
Dividends (610) (601)
Proceeds from the exercise of stock options 3,043 963
Net cash used in financing activities (4,442) (3,888)
Effect of exchange rate changes on cash and cash equivalents 130 (70)
Net increase (decrease) in cash and cash equivalents 1,931 (2,844)
Cash and cash equivalents at beginning of period 5,469 5,820
Cash and cash equivalents at end of period 7,400 2,976
Cash paid for:    
Income taxes 284 658
Interest $ 456 $ 561