Condensed Consolidated Statements Of Income (Loss) And Retained Earnings (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Condensed Consolidated Statements Of Income (Loss) And Retained Earnings
NET SALES	$ 31,384,137	$ 34,073,747	$ 48,794,852	$ 52,268,473
COST OF SALES	27,228,173	26,562,233	48,292,303	47,221,231
Gross profit from operations	4,155,964	7,511,514	502,549	5,047,242
SELLING, GENERAL AND ADMINISTRATIVE EXPENSES	4,023,396	3,861,768	7,854,700	7,749,286
Income (Loss) from operations	132,568	3,649,746	(7,352,151)	(2,702,044)
OTHER INCOME (EXPENSE):
Interest income	31,755	50,779	80,639	101,665
Interest expense	(144,197)	(158,757)	(220,977)	(280,880)
Gain on sale of equity investments	2,584,382	7,667	5,197,438	11,839
Dividend income	49,269	47,402	107,183	121,516
Other, net	91,487	(109,871)	257,355	662,544
Other Income (Expense), Total	2,612,696	(162,780)	5,421,638	616,684
Income (Loss) before taxes	2,745,264	3,486,966	(1,930,513)	(2,085,360)
PROVISION FOR (BENEFIT FROM) INCOME TAXES	70,000	975,000	(540,000)	100,000
NET INCOME (LOSS)	2,675,264	2,511,966	(1,390,513)	(2,185,360)
RETAINED EARNINGS, beg. of period	98,204,787	101,292,386	102,270,564	105,989,712
Less cash dividends	947,317	925,565	947,317	925,565
Less purchase and retirement of capital stock	1,992,757	0	1,992,757	0
RETAINED EARNINGS, end of period	$ 97,939,977	$ 102,878,787	$ 97,939,977	$ 102,878,787
Basic earnings (losses) per share	$ 0.66	$ 0.62	$ (0.34)	$ (0.54)
Cash dividends per share	$ 0.23	$ 0.23	$ 0.23	$ 0.23