Condensed Consolidated Balance Sheets - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 6,821,883	$ 4,409,042
Accounts receivable, less allowance	25,484,865	25,101,663
Inventories	39,261,105	41,332,137
Prepaid expenses and other current assets	1,578,248	2,149,295
Total current assets	73,146,101	72,992,137
Property, plant and equipment:
Land	1,420,104	1,422,785
Buildings	10,095,529	10,143,678
Machinery and equipment	19,111,801	18,244,038
Total property, plant and equipment	30,627,434	29,810,501
Less: accumulated depreciation	16,591,890	15,267,877
Net property, plant and equipment	14,035,544	14,542,624
Intangible assets, less accumulated amortization	15,792,738	17,044,400
Goodwill	4,696,370	4,696,370
Operating lease right-of-use asset, net	2,989,272
Deferred income taxes		113,353
Other assets	88,828	88,902
Total assets	110,748,853	109,477,786
Current liabilities:
Accounts payable	6,692,692	7,982,620
Operating lease liability - current portion	1,047,498
Current portion of mortgage payable	266,667	266,667
Other accrued liabilities	8,576,248	5,115,400
Total current liabilities	16,583,105	13,364,687
Long-term debt	33,240,407	40,283,115
Mortgage payable, net of current portion	3,177,778	3,444,445
Operating lease liability - non-current portion	1,960,996
Deferred income taxes	49,284
Other non-current liabilities	32,302	53,128
Total liabilities	55,043,872	57,145,375
STOCKHOLDERS' EQUITY
Common stock, par value $2.50: authorized 8,000,000 shares; issued - 4,838,071 shares in 2019 and in 2018, including treasury stock	12,094,413	12,094,413
Treasury stock, at cost, 1,487,238 shares in 2019 and 2018	(14,235,190)	(14,235,190)
Additional paid-in capital	8,262,208	8,981,523
Accumulated other comprehensive loss	(1,987,870)	(2,057,985)
Retained earnings	51,571,420	47,549,650
Total stockholders' equity	55,704,981	52,332,411
Total liabilities and stockholders' equity	$ 110,748,853	$ 109,477,786