Condensed Consolidated Statements of Cash Flows-Unaudited (USD $)	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
OPERATING ACTIVITIES
Net income (loss)	$ (808,000)	$ 587,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	331,000	336,000
Amortization of finite-lived intangible assets	42,000	72,000
Stock-based compensation	178,000	118,000
Deferred income taxes	(377,000)	213,000
Changes in operating assets and liabilities:
Decrease in accounts receivable	64,000	592,000
Increase in inventories	(232,000)	(922,000)
Increase in trade accounts payable, accrued liabilities and other liabilities	296,000	717,000
Decrease in other current assets	15,000	20,000
Net cash provided by (used in) operating activities	(491,000)	1,733,000
INVESTING ACTIVITIES
Capital expenditures	(614,000)	(1,166,000)
Net cash used in investing activities	(614,000)	(1,166,000)
FINANCING ACTIVITIES
Net repayments on note payable to bank	(509,000)	0
Increase in restricted cash	(4,000,000)	0
Proceeds from issuance of common stock	0	6,562,000
Payment of expenses related to the public offering	0	(158,000)
Proceeds from long-term debt	0	536,000
Repayments on long-term debt	(169,000)	(669,000)
Net cash provided by (used in) financing activities	(4,678,000)	6,271,000
Increase (decrease) in cash and cash equivalents	(5,783,000)	6,838,000
Cash and cash equivalents at end of period	13,709,000	4,147,000
Cash and cash equivalents at end of period	7,926,000	10,985,000
Supplemental Disclosure:
Cash paid for income taxes	24,000	35,000
Cash paid for interest	$ 54,000	$ 31,000