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Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
OPERATING ACTIVITIES      
Net (loss) income $ (1,720) $ 2,154 $ 15,720
Adjustments to reconcile net (loss) income to net cash provided by operating activities:      
Depreciation and amortization 23,329 14,189 14,148
Impairment of goodwill 2,205
Amortization of financing costs 1,543 519 650
Deferred rent 57 (642) (243)
Deferred income taxes 2,086 1,030 (1,951)
Net loss on disposal of fixed assets 84
Stock compensation expense 4,135 3,390 2,942
Undistributed equity (earnings) losses (545) (379) (544)
Loss on early retirement of debt 66 110 272
Contingent consideration fair value adjustment (1,774)
Changes in operating assets and liabilities (excluding the effects of business acquisitions)      
Accounts receivable 8,020 1,481 (17,977)
Inventory (13,819) 10,818 4,491
Prepaid expenses, other current assets and other assets 540 (951) (1,199)
Accounts payable, accrued expenses and other liabilities (3,153) (9,778) 12,255
Income taxes receivable (1,442) 132
Income taxes payable (353) (4,935) 969
NET CASH PROVIDED BY OPERATING ACTIVITIES 19,175 17,006 29,749
INVESTING ACTIVITIES      
Purchases of property and equipment (7,902) (6,311) (3,380)
Filament acquisition, net of cash acquired (216,527)
Acquisitions, net of cash acquired (9,072) (21,699)
Equity investments 567
Net proceeds from sale of property 249 15 64
NET CASH USED IN INVESTING ACTIVITIES (224,180) (15,368) (24,448)
FINANCING ACTIVITIES      
Proceeds from revolving credit facility 268,912 237,658 268,242
Repayments of revolving credit facility (320,767) (229,696) (246,756)
Proceeds from Term Loan 275,000
Repayments of Term Loan (2,063)
Proceeds from short term loan 216 187 118
Payments from short term loan (278) (239) (248)
Payment of financing costs (11,171) (31) (30)
Payment of equity issuance costs (936)
Cash dividends paid (3,273) (2,475) (2,413)
Payment of capital lease obligations (77) (94) (68)
Proceeds from the exercise of stock options 286 2,537 2,353
Payments of tax withholding for stock based compensation (561) (644) (86)
Excess tax benefit from stock options 223
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES 205,288 (2,297) (4,165)
Effect of foreign exchange on cash (236) 376 (384)
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS 47 (283) 752
Cash and cash equivalents at beginning of year 7,600 7,883 7,131
CASH AND CASH EQUIVALENTS AT END OF YEAR 7,647 7,600 7,883
Line of Credit [Member]      
FINANCING ACTIVITIES      
Repayments of Term Loan $ (9,500) $ (25,500)