Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
OPERATING ACTIVITIES
Net loss	$ (809)	$ (83)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	211	217
Amortization of finite-lived intangible assets	24	23
Write-down of note receivable	0	5
Stock-based compensation	90	110
Deferred income tax benefit	0	(213)
Changes in operating assets and liabilities:
Increase in accounts receivable, net	(534)	(129)
Decrease (increase) in inventories, net	342	(111)
Decrease in other assets	90	210
Increase (decrease) in trade accounts payable, accrued compensation and commissions expense and other accrued liabilities	46	(765)
Net cash used in operating activities	(540)	(736)
INVESTING ACTIVITIES
Capital expenditures	(12)	(140)
Asset acquisition	(748)	0
Net cash used in investing activities	(760)	(140)
FINANCING ACTIVITIES
Net borrowings on note payable to bank	214	133
Principal payments of long-term debt	0	(58)
Net cash used in financing activities	214	75
Decrease in cash and cash equivalents	(1,086)	(801)
Cash and cash equivalents at beginning of period	7,183	8,625
Cash and cash equivalents at end of period	6,097	7,824
Supplemental Disclosure:
Cash paid for income taxes	7	0
Cash paid for interest	$ 10	$ 11