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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES    
Net income $ 7,331 $ 10,619
Adjustments to reconcile net income to net cash provided by (used in) operating activities:    
Provision for bad debts 153 (169)
Provision for obsolete inventory 21
Depreciation and amortization 5,841 5,665
Deferred income taxes 947 2,781
Director stock compensation 71
Other non-cash adjustments 416 349
Changes in operating assets and liabilities:    
Trade accounts receivables (10,740) 5,118
Inventories 2,870 (1,061)
Prepaid expenses (820) (82)
Other assets (4,536) (2,051)
Trade accounts payable and accrued expenses 2,640 (20,212)
Accrued interest expense (4,337) (4,398)
Taxes payable 4,724 (794)
Labor liabilities (603) (471)
Related parties (831) 1,130
Contract assets and liabilities (7,955) (6,728)
CASH USED IN OPERATING ACTIVITIES (4,900) (10,212)
CASH FLOWS FROM INVESTING ACTIVITIES    
Proceeds from sale of investments 346 177
Purchase of investments (306) (218)
Acquisition of property and equipment (3,701) (1,070)
CASH USED IN INVESTING ACTIVITIES (3,661) (1,111)
CASH FLOWS FROM FINANCING ACTIVITIES    
Proceeds from debt 5,912 2,994
Cash dividend (760) (540)
Proceeds from equity offering 33,050
Repayments of debt (1,349) (2,726)
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES 36,853 (272)
Effect of exchange rate changes on cash and cash equivalents 380 1,277
NET INCREASE (DECREASE) IN CASH 28,672 (10,318)
CASH - Beginning of period 33,040 40,923
CASH - End of period 61,712 30,605
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION    
Interest 9,230 8,910
Income Tax 1,840 4,258
NON-CASH INVESTING AND FINANCING ACTIVITES:    
Assets acquired under credit or debt $ 1,468 $ 314