Consolidated Statements of Cash Flows (Unaudited) (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 2,667,000	$ 1,304,000
Adjustments to reconcile net income to net cash provided from (used in) operating activities:
Depreciation and amortization	709,000	1,179,000
Provision for bad debts - accounts receivable	51,000	56,000
Share-based compensation expense	618,000	712,000
Deferred income tax benefit	(651,000)	(241,000)
Gain on sales of property, plant and equipment	(12,000)	(1,000)
Changes in assets and liabilities:
Accounts receivable - trade	(606,000)	(1,058,000)
Accounts receivable - other	(175,000)	828,000
Inventories	(253,000)	433,000
Prepaid expenses and other current assets	(392,000)	459,000
Other assets	15,000	(298,000)
Accounts payable	307,000	442,000
Other current liabilities	486,000	(1,769,000)
Pension liability	482,000	387,000
Other long-term liabilities	(36,000)	35,000
Net cash provided from operating activities	3,210,000	2,468,000
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to property, plant and equipment	(965,000)	(675,000)
Disposals of property, plant and equipment	14,000	1,000
Net cash used in investing activities	(951,000)	(674,000)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from long-term debt	14,560,000	23,540,000
Repayment of long-term debt	(9,560,000)	(23,660,000)
Payment of cash dividends		(1,632,000)
Proceeds received on exercise of stock options	140,000	404,000
Common stock reacquired and retired		(311,000)
Net cash provided from (used in) financing activities	5,140,000	(1,659,000)
Net increase in cash and cash equivalents	7,399,000	135,000
Cash and cash equivalents balance, beginning of year	3,554,000	2,804,000
Cash and cash equivalents balance, end of period	$ 10,953,000	$ 2,939,000