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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2020 | Jun. 30, 2019
Cash flows from operating activities: |  |
Net income | $ 4,407 | $ 7,012
Adjustments to reconcile net income to net cash provided by (used in) operating activities: |  |
Depreciation and amortization of property, plant and equipment and intangible assets | 9,665 | 9,233
Amortization of other long-term assets and deferred loan fees | 2,104 | 2,146
Amortization of discounted liabilities | 7 |
Provision for bad debts | 392 | 445
Revision of deferred consideration |  | (2,888)
Stock-based compensation | 2,545 | 2,995
Change in deferred income taxes | (1,562) | (572)
Loss from equity method investment | 38 | 60
Net foreign currency adjustment | 594 | 86
Changes in assets and liabilities associated with operations: |  |
Decrease in net receivables | 16,421 | 7,841
Increase in inventories | (21,706) | (27,635)
Increase in prepaid expenses and other assets | (2,297) | (1,844)
Increase in net operating lease liability | 7 | 73
Decrease (increase) in income tax receivable | 899 | (4,480)
Decrease in accounts payable | (12,351) | (10,224)
Decrease in deferred revenue | (2,431) | (19,438)
Increase in accrued program costs | 12,577 | 11,823
Decrease in other payables and accrued expenses | (3,621) | (6,719)
Net cash provided by (used in) operating activities | 5,688 | (32,086)
Cash flows from investing activities: |  |
Capital expenditures | (6,386) | (7,216)
Acquisition of business, product lines, and intangible assets | (3,889) | (24,302)
Investments | (1,190) |
Net cash used in investing activities | (11,465) | (31,518)
Cash flows from financing activities: |  |
Net borrowings under line of credit agreement | 10,502 | 67,800
Net payments from the issuance of common stock (sale of stock under ESPP, exercise of stock options, and shares purchased for tax withholding) | (2,123) | (513)
Repurchase of common stock |  | (2,604)
Payment of cash dividends | (1,168) | (1,160)
Net cash provided by financing activities | 7,211 | 63,523
Net increase (decrease) in cash and cash equivalents | 1,434 | (81)
Effect of exchange rate changes on cash and cash equivalents | 585 | 220
Cash and cash equivalents at beginning of period | 6,581 | 6,168
Cash and cash equivalents at end of period | 8,600 | 6,307
Cash paid during the period for: |  |
Interest | 2,902 | 3,339
Income taxes, net | $ 1,901 | $ 7,583

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