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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
OPERATING ACTIVITIES      
Net income $ 29,026 $ 19,444 $ 28,239
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization 1,816 1,954 2,090
Gain on sale of equipment and property   (31)  
(Accretion) of discount/ amortization of premium related to marketable securities     (5)
Stock-based compensation expense 2,289 3,102 2,123
Deferred income tax benefit (140) (311) (620)
Pension settlement loss   647  
(Increase) decrease in assets:      
Accounts receivable 1,444 1,901 (2,735)
Income taxes receivable (10) 907 (455)
Inventories (30,951) (757) 5,217
Prepaid expenses and other current assets (527) 109 (261)
Other non-current assets (1,889) (4,428) (1,355)
Increase (decrease) in liabilities:      
Accounts payable 692 2,193 (787)
Other accrued expenses (4,287) 2,426 (386)
Other long-term liabilities 2,994 2,718 2,852
Net cash provided by operating activities 457 29,874 33,917
INVESTING ACTIVITIES      
Capital expenditures (1,248) (2,099) (2,334)
Proceed from sale of assets   34  
Sales and maturities of marketable securities     7,978
Purchases of marketable securities     (299)
Net cash (used for) provided by investing activities (1,248) (2,065) 5,345
FINANCING ACTIVITIES      
Payment of dividends (15,629) (13,550) (19,756)
Cash paid for common stock purchased and retired (1,051) (2,490) (8,447)
Net cash used for financing activities (16,680) (16,040) (28,203)
Net (decrease) increase in cash and cash equivalents (17,471) 11,769 11,059
Cash and cash equivalents at beginning of period 31,573 19,804 8,745
Cash and cash equivalents at end of period $ 14,102 $ 31,573 $ 19,804