Consolidated Balance Sheets (Current Period Unaudited) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 129,238	$ 279,288
Accounts receivable, less allowance for doubtful accounts of approximately $145,000 in 2014 and $199,000 in 2013	2,361,199	2,097,644
Inventories, net	3,353,030	2,738,813
Prepaid expenses	491,225	299,730
Total current assets	6,334,692	5,415,475
Property, plant and equipment:
Buildings and leasehold improvements	456,333	552,561
Machinery and equipment	10,521,425	12,089,799
	10,977,758	12,642,360
Less allowance for depreciation and amortization	(8,452,428)	(9,226,076)
	2,525,330	3,416,284
Other noncurrent assets	191,465	123,856
Total assets	9,051,487	8,955,615
Current liabilities:
Accounts payable	2,943,024	2,496,331
Customer deposits	280,206	216,107
Commissions, salaries, wages, and taxes thereon	160,684	77,101
Income taxes payable	4,011	5,326
Revolving line of credit	2,164,569	1,580,611
Current portion of long-term debt	240,000	240,000
Note payable to related party	200,000	200,000
Current portion of capital lease obligation	14,287	13,883
Accrued settlement, current portion		156,000
Other accrued expenses	982,421	660,771
Total current liabilities	6,989,202	5,646,130
Long-term liabilities:
Long-term debt, net of current portion	680,000	920,000
Capital lease obligation, net of current portion	52,522	59,768
Accrued settlement, net of current portion		130,000
Pension and other benefits	1,192,372	1,274,173
	1,924,894	2,383,941
Total liabilities	8,914,096	8,030,071
Stockholders’ equity:
Common stock, $1.00 par value: Authorized shares – 4,000,000 Issued shares – 1,879,319 in 2014 and 1,879,319 in 2013; Outstanding shares – 1,687,319 in 2014 and 1,687,319 in 2013	1,879,319	1,879,319
Other capital	271,381	271,381
Retained earnings	765,953	1,565,134
Treasury stock at cost, 192,000 shares	(2,112,000)	(2,112,000)
Accumulated other comprehensive loss	(967,262)	(978,290)
Total stockholders’ equity	137,391	925,544
Total liabilities and stockholders’ equity	9,051,487	8,955,615
Series C Preferred Stock [Member]
Stockholders’ equity:
Series C redeemable, convertible preferred stock, $1.00 par value: Liquidation preference of $5 per share Authorized shares - 100,000 Issued and outstanding shares - 60,000 in 2014 and 60,000 in 2013	$ 300,000	$ 300,000