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Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
CASH FLOWS FROM OPERATING ACTIVITIES |  |  |
Net income | $ 29,440 | $ 41,026 | $ 12,066
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization | 9,291 | 8,132 | 8,272
Provision for bad debts - accounts receivable | 2,260 | 6,746 | 1,323
Share-based compensation expense | 4,010 | 2,530 | 1,484
Deferred income tax benefit | (2,724) | (4,987) | (1,595)
Gain on sale of property, plant and equipment | 0 | (2,164) | (5)
Change in fair value of acquisition-related contingent liabilities | 2,936 | 4,119 | (74)
Pension plan termination charge | 7,821 | 0 | 0
Changes in assets and liabilities, net of acquisition of businesses: |  |  |
Accounts receivable | (2,575) | (29,251) | (17,104)
Accounts receivable - other | (4,189) | (273) | 660
Contract assets | 1,212 | (699) | 10,703
Inventories | (21,753) | (16,763) | (4,984)
Prepaid expenses and other current assets | (7,852) | (1,474) | (3,479)
Other assets | (2,325) | 464 | (1,717)
Accounts payable and other current liabilities | 1,007 | 32,690 | 10,904
Payment of acquisition-related contingent liabilities | (4,221) | 0 | 0
Long-term pension liability | 1,951 | (508) | 2,138
Other long-term liabilities | 2,791 | 1,771 | 1,415
Net cash provided by operating activities | 17,080 | 41,359 | 20,007
CASH FLOWS FROM INVESTING ACTIVITIES |  |  |
Additions to property, plant and equipment | (17,696) | (11,857) | (9,672)
Proceeds from disposals of property, plant and equipment | 0 | 5,284 | 5
Acquisition of businesses | (16,434) | 0 | 0
Net cash used in investing activities | (34,130) | (6,573) | (9,667)
CASH FLOWS FROM FINANCING ACTIVITIES |  |  |
Proceeds from borrowings of debt | 250,608 | 202,349 | 165,314
Repayment of debt | (223,025) | (234,063) | (163,645)
Payment of cash dividends | (7,237) | (6,111) | (6,046)
Payment of acquisition-related contingent liabilities | (1,641) | (1,966) | (961)
Proceeds received on exercise of stock options | 2,703 | 1,927 | 283
Tax withholdings on exercise of stock rights | (584) | (66) | 0
Tax (provision) benefit from vesting of acquisition-related restricted stock | 171 | (13) | 30
Common stock reacquired and retired | 0 | (500) | (1,685)
Net cash provided by (used in) financing activities | 20,995 | (38,443) | (6,710)
Effect of currency exchange rates on cash | (182) | (209) | 46
Net increase (decrease) in cash and cash equivalents | 3,763 | (3,866) | 3,676
Cash and cash equivalents balance, beginning of year | 5,172 | 9,038 | 5,362
Cash and cash equivalents balance, end of year | 8,935 | 5,172 | 9,038
Supplemental disclosure of cash flow information: |  |  |
Income taxes paid | 14,632 | 13,390 | 7,146
Interest paid | $ 1,298 | $ 1,490 | $ 3,979

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