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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2018 | Jun. 30, 2017
Cash flows from operating activities: |  |
Net earnings | $ 5,332 | $ 3,866
Adjustments to reconcile net earnings to net cash provided by (used in) operating activities: |  |
Depreciation and amortization | 9,320 | 10,476
Stock-based compensation | 1,447 | 1,545
Amortization of deferred financing costs | 294 | 670
Deferred income taxes | 1,780 | (826)
Net unrealized (gains) losses on foreign currency revaluation | (871) | 2,107
Other, net | 616 | 892
Changes in operating assets and liabilities: |  |
Accounts receivable, net | (10,541) | (13,843)
Unbilled receivables | (1,051) | 0
Inventories | (10,629) | (2,658)
Account payable | 12,082 | 492
Accrued expenses | (1,251) | (2,409)
Other operating assets/liabilities, net | (5,286) | (694)
Net cash provided by (used in) operating activities | 1,242 | (382)
Cash flows from investing activities: |  |
Purchases of property, plant and equipment | (5,870) | (2,243)
Proceeds from disposal/sale of property, plant and equipment | 53 | 10
Net cash used in investing activities | (5,817) | (2,233)
Cash flows from financing activities: |  |
Repayments of long-term debt | (7,525) | (15,400)
Dividends paid to common stockholders | (1,589) | (1,562)
Borrowings under revolving credit line | 0 | 6,000
Repayments of revolving credit line | 0 | (2,000)
Reduction in notes payable | 0 | (213)
Net cash used in financing activities | (9,114) | (13,175)
Effect of exchange rate changes on cash and cash equivalents | 65 | 1,042
Net decrease in cash and cash equivalents | (13,624) | (14,748)
Cash and cash equivalents - beginning of period | 69,354 | 73,411
Cash and cash equivalents - end of period | 55,730 | 58,663
Cash paid during the period for: |  |
Income tax payments, net of refunds received | 5,073 | 881
Interest payments | $ 2,260 | $ 2,336

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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
Name: | us-gaap_ShareBasedCompensation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration