Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025	Sep. 30, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 4,196	$ 3,596
Accounts receivable, less allowance for credit losses of $527 in 2026 and $494 in 2025	33,511	29,098
Inventories	63,386	59,852
Prepaid expenses and other current assets	4,518	3,649
Total current assets	105,611	96,195
Property, plant and equipment:
Land	3,487	3,487
Buildings	24,051	24,051
Machinery and equipment	45,339	43,462
Total property, plant and equipment	72,877	71,000
Less: accumulated depreciation	33,582	32,459
Net property, plant and equipment	39,295	38,541
Operating lease right-of-use asset, net	6,408	6,881
Goodwill	9,908	9,908
Intangible assets, less accumulated amortization	34,021	19,473
Total assets	195,243	170,998
Current liabilities:
Accounts payable	7,654	8,065
Operating lease liability - current portion	1,373	1,446
Current portion of mortgage payable	458	454
Other current liabilities	13,619	12,906
Total current liabilities	23,104	22,871
Long-term debt	33,030	11,853
Mortgage payable, net of current portion	9,362	9,432
Operating lease liability - non-current portion	5,176	5,532
Deferred income taxes	3,685	3,685
Other non-current liabilities	4,159	14
Total liabilities	78,516	53,387
Commitments and contingencies (see note 2)
STOCKHOLDERS' EQUITY
Common stock, par value $2.50: authorized 8,000,000 shares; 5,355,231 shares issued and 3,810,359 shares outstanding in 2026 and 5,351,596 shares issued and 3,806,724 shares outstanding in 2025	13,388	13,379
Additional paid-in capital	18,451	19,506
Retained earnings	102,668	102,293
Treasury stock, at cost - 1,544,872 shares in 2026 and 2025	(15,996)	(15,996)
Accumulated other comprehensive loss:
Translation adjustment	(1,784)	(1,571)
Total stockholders’ equity	116,727	117,611		$ 106,980
Total liabilities and stockholders’ equity	$ 195,243	$ 170,998