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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Cash Flows From Operating Activities: |  |
Net income | $ 4,035 | $ 4,470
Adjustments to reconcile net income to net cash used in operating activities |  |
Depreciation and amortization | 3,750 | 3,659
Deferred income taxes | (488) | (297)
Stock compensation expense | 789 | 674
Debt issue cost amortization recorded in interest expense | 38 | 43
Other | 72 | 347
Changes in operating assets and liabilities, net of acquisition: |  |
Trade receivables | (7,463) | (10,941)
Inventories | (3,978) | 1,291
Prepaid expenses and other assets | 275 | (161)
Accounts payable | 3,043 | 490
Accrued liabilities | (3,039) | (2,014)
Net cash used in operating activities | (2,966) | (2,439)
Cash Flows From Investing Activities: |  |
Purchase of property and equipment | (1,696) | (2,505)
Cash paid for acquisitions, net of cash acquired | (14,541) |
Net cash used in investing activities | (16,237) | (2,505)
Cash Flows From Financing Activities: |  |
Borrowings on long term debt | 26,979 | 6,568
Payment of debt issuance costs | (401) |
Stock transactions under employee benefit stock plans | (256) | (63)
Net cash (used in) provided by financing activities | 26,322 | 6,505
Effect of foreign exchange rate changes on cash | (152) | (50)
Net increase in cash and cash equivalents | 6,967 | 1,511
Cash and cash equivalents at beginning of period | 13,416 | 8,673
Cash and cash equivalents at end of period | $ 20,383 | $ 10,184

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- Definition Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28541-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.8) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
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