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Consolidated Statements of Cash Flows (USD $)
In Thousands, unless otherwise specified
 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
OPERATING ACTIVITIES    
Net loss $ (2,078) $ (5,047)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation 421 442
Amortization of finite-lived intangible assets 52 46
Write-down of note receivable 0 10
Stock-based compensation 186 253
Deferred income tax provision 0 3,922
Changes in operating assets and liabilities:    
(Increase) decrease in accounts receivable, net (205) 390
Decrease in inventories, net 170 24
Decrease in other assets 95 287
Increase in accrued restructuring expense 280 0
Increase (decrease) in trade accounts payable, accrued compensation and commissions expense and other accrued liabilities 503 (626)
Net cash used in operating activities (576) (299)
INVESTING ACTIVITIES    
Capital expenditures (53) (228)
Asset acquisition (748) 0
Net cash used in investing activities (801) (228)
FINANCING ACTIVITIES    
Net borrowings (repayments) on note payable to bank 319 (368)
Principal payments of long-term debt 0 (58)
Purchase of treasury stock 0 (59)
Net cash provided by (used in) financing activities 319 (485)
Decrease in cash and cash equivalents (1,058) (1,012)
Cash and cash equivalents at beginning of period 7,183 8,625
Cash and cash equivalents at end of period 6,125 7,613
Supplemental Disclosure:    
Cash paid for income taxes 0 0
Cash paid for interest $ 21 $ 19