Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Operating Activities:
Net income	$ 309	$ 260
Adjustments to reconcile net income to net cash used by operating activities
Depreciation	220	209
Amortization	67	49
Stock compensation expense	105	88
Changes in operating assets and liabilities:
Accounts receivable	1,411	(1,703)
Inventories	(288)	998
Prepaid expenses and other assets	(23)	(575)
Accounts payable	(1,637)	(1,441)
Other accrued liabilities	(1,033)	(376)
Total adjustments	(1,178)	(2,751)
Net cash used by operating activities	(869)	(2,491)
Investing Activities:
Purchase of property, plant, and equipment	(155)	(75)
Purchase of patents and trademarks	(26)	(29)
Net cash used by investing activities	(181)	(104)
Financing Activities:
Borrowing (repayments) of long-term debt	132	(649)
Proceeds from issuance of common stock	100	21
Distributions to stockholders		(219)
Purchase of treasury stock		(370)
Net cash provided (used) by financing activities	232	(1,217)
Effect of exchange rate changes	9	37
Net change in cash and cash equivalents	(809)	(3,775)
Cash and cash equivalents at beginning of period	9,750	7,853
Cash and cash equivalents at end of period	$ 8,941	$ 4,078