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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
OPERATING ACTIVITIES    
Net income $ 17,018 $ 13,891
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 936 897
Stock-based compensation expense 1,430 1,124
Deferred income tax benefit (992) (125)
(Increase) decrease in assets:    
Accounts receivable (6,082) (3,235)
Income taxes receivable (67) (14,799)
Inventories (5,010) (508)
Prepaid expenses and other current assets 310 (303)
Other non-current assets 2,465 (1,143)
Increase (decrease) in liabilities:    
Accounts payable 4,802 6,717
Accrued expenses and other liabilities 3,612 1,683
Other long-term liabilities (1,265) 1,904
Net cash provided by operating activities 17,157 6,103
INVESTING ACTIVITIES    
Capital expenditures (798) (541)
Net cash used for investing activities (798) (541)
FINANCING ACTIVITIES    
Payment of dividends (8,191) (7,475)
Cash paid for common stock purchased and retired (702) (1,051)
Net cash used for financing activities (8,893) (8,526)
Net increase (decrease) in cash and cash equivalents 7,466 (2,964)
Cash and cash equivalents at beginning of period 14,102 31,573
Cash and cash equivalents at end of period 21,568 28,609
Supplemental information:    
Income tax payments, net $ 4,095 $ 4,179