Consolidated Statements of Cash Flows (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net income	$ 1,869	$ 1,057
Adjustments to reconcile net income to cash provided (used) by operating activities:
Depreciation and amortization	254	273
Allowance for doubtful accounts	5	17
Value of share-based payment arrangements	9	87
Amortization of deferred finance costs	6	12
Deferred tax benefit	1,124
Changes in assets and liabilities:
Trade accounts receivable	(7,184)	(7,400)
Inventories	4,397	3,415
Prepaid and other assets	(131)	(494)
Accounts payable and accrued expenses	(3,899)	4,640
Cash provided (used) by operating activities	(3,550)	1,607
Cash flows from investing activities:
Additions to patents	(21)	(6)
Additions to property, plant, and equipment	(149)	(244)
Cash used by investing activities	(170)	(250)
Cash flows from financing activities:
Proceeds from issuance of common stock - net		91
Purchase of common stock equivalents	(90)
Proceeds from short-term debt - net	3,287	(755)
Proceeds from issuance of long-term debt		100
Repayment of long-term debt	(482)	(598)
Cash provided (used) by financing activities	2,715	(1,162)
Increase (decrease) in cash and cash equivalents	(1,005)	195
Cash and cash equivalents at beginning of period	3,926	299
Cash and cash equivalents at end of period	2,921	494
Supplemental disclosure of cash flow information:
Cash paid during period for interest	498	533
Cash paid for income taxes	$ 29	$ 18