Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash flows from operating activities:
Consolidated net income	$ 37,781	$ 11,157	$ 51,262
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on extinguishment of debt	(1,664)	(885)	(2,154)
Loss (gain) on sale of property, plant, and equipment	90	(9)	(54)
Loss on goodwill impairment	0	25,585	0
Loss on intangible asset impairment	0	1,981	0
Gain on insurance recovery of inventory loss	(15,181)	0	0
Loss on investments	12,177	13,570	7,100
Depreciation and other amortization expense	3,262	3,388	3,105
Amortization of other intangible assets	3,096	1,911	1,907
Amortization of deferred financing costs	2,445	2,576	2,541
Deferred income tax expense (benefit)	7,024	(6,506)	(1,485)
Stock compensation expense	6,561	5,273	7,557
Noncash lease income	(82)	(29)	(167)
Gain on MSA escrow deposits	0	(54)	(255)
Changes in operating assets and liabilities:
Accounts receivable	(1,609)	(2,103)	3,317
Inventories	20,977	(32,653)	(9)
Other current assets	(3,533)	4,581	(134)
Other assets	(4,835)	420	996
Accounts payable	(14)	1,240	(2,367)
Accrued liabilities and other	386	830	(2,943)
Net cash provided by operating activities	66,881	30,273	68,217
Cash flows from investing activities:
Capital expenditures	(5,707)	(7,685)	(6,156)
Acquisitions, net of cash acquired	0	0	(16,416)
Payments for investments	(202)	(1,000)	(16,657)
Restricted cash, MSA escrow deposits	0	(10,170)	(19,664)
Proceeds on sale of property, plant and equipment	3	62	54
Net cash used in investing activities	(5,906)	(18,793)	(58,839)
Cash flows from financing activities:
Proceeds from Senior Notes	0	0	250,000
Payments of 2018 first lien term loan	0	0	(130,000)
Settlement of interest rate swaps	0	0	(3,573)
Convertible Senior Notes repurchased	(41,794)	(9,000)	0
Proceeds from call options	114	51	0
Payment of promissory note	0	0	(9,625)
Payment of dividends	(4,497)	(4,250)	(4,096)
Payments of financing costs	(2,437)	0	(6,921)
Exercise of options	450	504	2,071
Redemption of options	(346)	(155)	(2,111)
Redemption of restricted stock units	(995)	(1,229)	0
Common stock repurchased	0	(29,224)	(38,678)
Net cash (used in) provided by financing activities	(49,505)	(43,303)	57,067
Net increase (decrease) in cash	11,470	(31,823)	66,445
Effect of foreign currency translation on cash	13	(320)	191
Cash, beginning of period:
Unrestricted	106,403	128,320	41,765
Restricted	4,929	15,155	35,074
Total cash at beginning of period	111,332	143,475	76,839
Cash, end of period:
Unrestricted	117,886	106,403	128,320
Restricted	4,929	4,929	15,155
Total cash at end of period	122,815	111,332	143,475
Supplemental disclosures of cash flow information:
Cash paid during the period for interest	18,047	18,717	12,539
Cash paid during the period for income taxes, net	12,447	13,369	16,063
Supplemental schedule of noncash investing activities:
Accrued capital expenditures	8	11	0
Accrued consideration for acquisition of investments	248	0	0
Supplemental schedule of noncash financing activities:
Dividends declared not paid	$ 1,489	$ 1,354	$ 1,261