Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 3,240	$ 4,167
Accounts receivable, less allowance of $1,104 in 2021 and $1,152 in 2020	36,270	27,173
Inventories	48,691	50,704
Prepaid expenses and other current assets	2,234	1,642
Total current assets	90,435	83,686
Property, plant and equipment:
Land	1,768	1,770
Buildings	13,518	12,899
Machinery and equipment	27,455	24,524
Total property, plant and equipment	42,741	39,193
Less: accumulated depreciation	20,332	18,954
Net property, plant and equipment	22,409	20,239
Operating lease right-of-use asset, net	3,476	2,422
Goodwill	4,800	4,800
Intangible assets, less accumulated amortization	18,019	18,721
Total assets	139,139	129,868
Current liabilities:
Accounts payable	8,021	7,601
Operating lease liability - current portion	919	873
Current portion of mortgage payable	267	267
Other accrued liabilities	10,278	11,460
Total current liabilities	19,485	20,201
Long-term debt	39,550	38,767
Mortgage payable, net of current portion	2,778	2,911
Operating lease liability - non-current portion	2,764	1,654
Other non-current liabilities	110	110
Total liabilities	64,687	67,151
Commitments and Contingencies (see note 2)
STOCKHOLDERS' EQUITY
Common stock, par value $2.50: authorized 8,000,000 shares; issued - 4,840,571 shares in 2020 and 2019, including treasury stock	12,576	12,101
Additional paid-in capital	10,829	7,931
Retained earnings	66,415	58,033
Treasury stock, at cost - 1,501,658 shares in 2021 and 2020	(14,522)	(14,522)
Accumulated other comprehensive loss:
Translation adjustment	(846)	(826)
Total stockholders’ equity	74,452	62,717
Total liabilities and stockholders’ equity	$ 139,139	129,868
PPP Loan
Current liabilities:
Long-term debt		$ 3,508