Consolidated Statements of Cash Flows (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Operating activities
Net income	$ 1,048,157	$ 1,683,156
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,109,088	1,244,990
Stock-based compensation	169,413	170,618
Contribution of treasury shares to ESOP	125,000	125,000
Deferred income taxes	(78,000)	(67,000)
Foreign currency transaction (gain)/loss	29,368	(69,592)
(Increase) decrease in accounts receivable	(40,256)	72,862
(Increase) decrease in inventories	899,821	(471,532)
(Increase) decrease in refundable income taxes	(34,047)	(38,833)
(Increase) decrease in prepaid expenses and other current assets	(90,527)	145,133
(Increase) decrease in other assets	46,165	(31,818)
Increase (decrease) in accounts payable & accrued expenses and other non-current liabilities	(391,809)	(535,328)
Net cash provided by operating activities	2,792,373	2,227,656
Investing activities
Proceeds from sale of property, plant, and equipment	13,737	41,332
Purchase of property, plant, and equipment	(414,170)	(618,545)
Payment of life insurance premiums	(279,402)	(267,550)
Net cash used in investing activities	(679,835)	(844,763)
Financing activities
Principal payments on long-term borrowings	(566,595)	(521,091)
Common stock dividends paid	(497,585)	(495,344)
Purchase of stock for treasury	(120,378)	0
Other	0	547
Net cash used in financing activities	(1,184,558)	(1,015,888)
Effect of exchange rate changes on cash and cash equivalents	(84,805)	203,120
Increase (decrease) in cash and cash equivalents	843,175	570,125
Cash and cash equivalents at beginning of year	6,331,038	5,760,913
Cash and cash equivalents at end of year	7,174,213	6,331,038
Supplemental disclosures of cash flow information:
Interest	139,015	206,356
Income taxes	$ 789,000	$ 1,304,000