CONSOLIDATED BALANCE SHEETS - USD ($)	Mar. 31, 2020	Dec. 31, 2019
CURRENT ASSETS
Cash	$ 531,000	$ 380,000
Accounts receivable - net	8,554,000	9,313,000
Inventories	22,285,000	22,882,000
Prepaid expenses and other current assets	2,021,000	1,497,000
TOTAL CURRENT ASSETS	33,391,000	34,072,000
PROPERTY AND EQUIPMENT
Land	507,000	507,000
Buildings and improvements	3,489,000	3,303,000
Machinery and equipment	25,529,000	25,059,000
Property, Plant and Equipment, Gross	29,525,000	28,869,000
Less accumulated depreciation and amortization	19,191,000	18,760,000
NET PROPERTY AND EQUIPMENT	10,334,000	10,109,000
GOODWILL	4,715,000	4,726,000
OTHER INTANGIBLE ASSETS - net	8,032,000	8,259,000
DEFERRED INCOME TAXES - net	269,000	216,000
RIGHT-OF-USE ASSETS - OPERATING LEASES	3,673,000	3,859,000
OTHER ASSETS - net	431,000	502,000
TOTAL ASSETS	60,845,000	61,743,000
CURRENT LIABILITIES
Short-term borrowings	6,931,000	5,648,000
Accounts payable	2,318,000	1,843,000
Accrued compensation and benefits	1,123,000	2,019,000
Accrued other liabilities	1,005,000	1,568,000
Current leased liabilities - operating leases	870,000	879,000
TOTAL CURRENT LIABILITIES	12,247,000	11,957,000
Noncurrent leased liabilities - operating leases	2,896,000	3,070,000
Other liabilities	204,000	210,000
TOTAL LIABILITIES	15,347,000	15,237,000
SHAREHOLDERS' EQUITY
Preferred stock - $ 10 par; authorized - 2,000,000 shares; no shares issued	0	0
Additional paid-in capital	14,087,000	14,056,000
Retained earnings	37,952,000	38,867,000
Treasury stock, at cost - 1,273,000 shares at March 31, 2020 and at December 31, 2019	(10,213,000)	(10,213,000)
Accumulated other comprehensive loss	(745,000)	(620,000)
TOTAL SHAREHOLDERS' EQUITY	45,498,000	46,506,000
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	60,845,000	61,743,000
Common Class A [Member]
SHAREHOLDERS' EQUITY
Common stock	4,417,000	4,416,000
TOTAL SHAREHOLDERS' EQUITY	4,417,000	4,416,000
Common Class B [Member]
SHAREHOLDERS' EQUITY
Common stock	$ 0	$ 0