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Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
CASH FLOWS FROM OPERATING ACTIVITIES |  |
Net earnings (loss) | $ (1,143) | $ 1,138
Adjustments to reconcile net earnings (loss) to net cash used in operating activities: |  |
Depreciation and amortization | 791 | 804
Payment of earnout for 2018 related to Ambrell acquisition |  | (10,048)
Provision for excess and obsolete inventory | 171 | 107
Foreign exchange loss | 38 | 4
Amortization of deferred compensation related to stock-based awards | 187 | 183
Loss on disposal of property and equipment |  | 9
Proceeds from sale of demonstration equipment, net of gain |  | 43
Deferred income tax benefit | (93) | (89)
Changes in assets and liabilities: |  |
Trade accounts receivable | 1,188 | 374
Inventories | (714) | (737)
Prepaid expenses and other current assets | 117 | (88)
Other assets | (4) | (6)
Accounts payable | 316 | 721
Accrued wages and benefits | (543) | (1,192)
Accrued professional fees | (105) | 182
Customer deposits and deferred revenue | 152 | (442)
Accrued sales commissions | 78 | (182)
Operating lease liabilities | (323) | (341)
Domestic and foreign income taxes payable | (207) | 258
Other current liabilities | (25) | (173)
Net cash used in operating activities | (119) | (9,475)
CASH FLOWS FROM INVESTING ACTIVITIES |  |
Purchase of property and equipment | (80) | (141)
Net cash used in investing activities | (80) | (141)
CASH FLOWS FROM FINANCING ACTIVITIES |  |
Repurchases of common stock | (74) |
Net cash used in financing activities | (74) |
Effects of exchange rates on cash | (21) | (54)
Net cash used in all activities | (294) | (9,670)
Cash and cash equivalents at beginning of period | 7,612 | 17,861
Cash and cash equivalents at end of period | 7,318 | 8,191
Cash payments for: |  |
Domestic and foreign income taxes | $ 50 | $ 1,168

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