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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:      
Net income $ 23,802 $ 22,974 $ 16,570
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization 37,425 35,929 32,542
Losses (gains) on sales and/or abandonment of property and equipment (23) 916 177
Write-off of patents and intangible assets 141 1,427 8,208
Acquired in-process research and development 1,000 0 0
Amortization of deferred credits (171) (175) (139)
Amortization of long-term debt issuance costs 987 987 845
Deferred income taxes 3,450 3,870 1,359
Excess tax benefits from stock-based compensation (2,124) (576) (259)
Stock-based compensation expense 2,243 1,460 1,467
Changes in operating assets and liabilities, net of effects from acquisitions:      
Trade receivables (5,872) (13,599) (6,445)
Employee receivables (52) 46 (53)
Other receivables 387 (3,042) (609)
Inventories (13,113) (9,396) 2,334
Prepaid expenses (696) (58) (758)
Prepaid income taxes (1,788) (41) 18
Income tax refund receivables (784) 11 1,267
Other assets (362) (1,388) (1,806)
Trade payables 14,766 5,326 (5)
Accrued expenses 5,656 6,137 (276)
Advances from employees 217 142 (277)
Income taxes payable 2,199 1,083 255
Liabilities related to unrecognized tax benefits 536 (76) (520)
Deferred compensation payable (135) 802 1,877
Other long-term obligations 1,769 566 (4,399)
Total adjustments 45,656 30,351 34,803
Net cash provided by operating activities 69,458 53,325 51,373
Capital expenditures for:      
Property and equipment (50,959) (34,181) (59,505)
Intangible assets (1,956) (1,714) (1,617)
Proceeds from sale-leaseback transactions 2,017 5,521 24,000
Proceeds from the sale of property and equipment 1,247 98 113
Cash paid in acquisitions, net of cash acquired (12,368) (5,927) (31,600)
Net cash used in investing activities (62,019) (36,203) (68,609)
CASH FLOWS FROM FINANCING ACTIVITIES:      
Proceeds from issuance of common stock 6,668 8,146 3,729
Proceeds from issuance of long-term debt 152,375 144,018 176,764
Payments on long-term debt (169,272) (169,392) (165,477)
Proceeds from industrial assistant grants 0 0 389
Excess tax benefits from stock-based compensation 2,124 576 259
Long-term debt issuance costs 0 0 (798)
Contingent payments related to acquisitions (1,212) (67) (77)
Payment of taxes related to an exchange of common stock (918) (249) (21)
Net cash provided by (used in) financing activities (10,235) (16,968) 14,768
EFFECT OF EXCHANGE RATES ON CASH (382) (258) 208
NET DECREASE IN CASH AND CASH EQUIVALENTS (3,178) (104) (2,260)
CASH AND CASH EQUIVALENTS:      
Beginning of year 7,355 7,459 9,719
End of year 4,177 7,355 7,459
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION      
Interest (net of capitalized interest of $325, $389 and $1,038 respectively) 6,273 9,014 7,877
Income taxes 3,409 3,289 735
SUPPLEMENTAL DISCLOSURES OF NON-CASH INVESTING AND FINANCING ACTIVITIES      
Property and equipment purchases in accounts payable 3,199 2,896 4,055
Receivable due for sale of equipment 0 1,256 0
Cost method investment converted to intangible asset in acquisition in lieu of additional cash payment 1,010 0 0
Acquisition purchases in accrued expenses and other long-term obligations 1,300 1,000 350
Merit common stock surrendered (185, 127 and 45 shares, respectively) in exchange for exercise of stock options $ 3,802 $ 1,941 $ 452