Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Operating Activities
Net loss	$ (836)	$ (62)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Gain on derivatives	0	(44)
Depreciation	38	99
Gain on disposal of equipment	(5)	0
Stock based compensation	58	102
Changes in operating assets and liabilities:
Accounts receivable	1,220	(572)
Inventories	(50)	(10)
Prepaid expenses and other current assets	18	8
Accounts payable	(14)	177
Deferred revenue	0	(8)
Accrued liabilities	(119)	50
Net cash provided by (used in) operating activities	310	(260)
Investing Activities
Purchases of equipment	(3)	(13)
Proceeds from sale of equipment	2	0
Net cash used in investing activities	(1)	(13)
Financing Activities
Proceeds from the sale of subsidiary equity and warrants issued	0	203
Net cash provided by financing activities	0	203
Increase (decrease) in cash and cash equivalents	309	(70)
Cash - beginning of period	1,669	1,118
Cash - end of period	$ 1,978	$ 1,048