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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Cash flows from operating activities:    
Net income $ 2,175 $ 564
Adjustments to reconcile net income to net cash provided by (used in) operating activities:    
Depreciation and finance lease amortization 2,698 3,031
Amortization of intangible assets 316 399
Deferred income taxes 271 712
Share-based compensation expense 697 460
Other, net (68) (232)
Trade and other receivables 2,308 5,213
Contract assets, net (2,636) 8,683
Inventories (3,988) (3,068)
Prepaid expenses and other assets 1,203 2,179
Accounts payable 165 1,320
Accrued and other liabilities (3,727) (4,225)
Net cash provided by (used in) operating activities (586) 15,036
Cash flows from investing activities:    
Acquisition of business, net of cash acquired 0 (48,728)
Purchases of property and equipment (1,861) (2,936)
Other investing activities 99 0
Net cash used in investing activities (1,762) (51,664)
Cash flows from financing activities:    
Borrowings on line of credit 0 41,377
Repayments on line of credit 0 (41,377)
Borrowings on long-term debt 0 15,879
Payments on long-term debt (5,364) 0
Payments on finance lease obligations (100) (103)
Payments of debt issuance costs 0 (405)
Tax withholdings related to net share settlements of restricted stock and performance share awards (222) (101)
Net cash provided by (used in) financing activities (5,686) 15,270
Change in cash and cash equivalents (8,034) (21,358)
Cash and cash equivalents, beginning of period 37,927 31,014
Cash and cash equivalents, end of period 29,893 9,656
Noncash investing and financing activities:    
Accrued property and equipment purchases 428 445
Right-of-use assets obtained in exchange for operating lease liabilities $ 4,656 $ 0