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Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2020 | Sep. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES |  |
Net earnings (loss) | $ (515) | $ 1,598
Adjustments to reconcile net earnings (loss) to net cash provided by (used in) operating activities: |  |
Depreciation and amortization | 2,378 | 2,431
Payment of earnout for 2018 related to Ambrell acquisition |  | (12,167)
Provision for excess and obsolete inventory | 410 | 341
Foreign exchange loss | 33 | 37
Amortization of deferred compensation related to stock-based awards | 480 | 638
Loss on disposal of property and equipment | 2 | 17
Proceeds from sale of demonstration equipment, net of gain | 54 | 138
Deferred income tax benefit | (81) | (307)
Changes in assets and liabilities: |  |
Trade accounts receivable | (237) | 1,254
Inventories | (146) | (1,551)
Prepaid expenses and other current assets | 95 | (235)
Restricted certificates of deposit |  | 35
Other assets | (5) |
Accounts payable | 215 | 943
Accrued wages and benefits | 18 | (969)
Accrued professional fees | 47 | 192
Customer deposits and deferred revenue | 936 | (509)
Accrued sales commissions | (2) | (257)
Operating lease liabilities | (977) | (1,059)
Domestic and foreign income taxes payable | (240) | 171
Other current liabilities | (60) | (135)
Other liabilities | (5) | 263
Net cash provided by (used in) operating activities | 2,400 | (9,131)
CASH FLOWS FROM INVESTING ACTIVITIES |  |
Purchase of property and equipment | (520) | (413)
Net cash used in investing activities | (520) | (413)
CASH FLOWS FROM FINANCING ACTIVITIES |  |
Proceeds from Paycheck Protection Program loans | 2,829 |
Repayments of Paycheck Protection Program loans | (2,829) |
Proceeds from revolving credit facility | 2,800 |
Repayments of revolving credit facility | (2,800) |
Repurchases of common stock | (74) | (179)
Net cash used in financing activities | (74) | (179)
Effects of exchange rates on cash | 55 | (113)
Net cash provided by (used in) all activities | 1,861 | (9,836)
Cash and cash equivalents at beginning of period | 7,612 | 17,861
Cash and cash equivalents at end of period | 9,473 | 8,025
Cash payments for: |  |
Domestic and foreign income taxes | $ 58 | $ 488

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