CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Net loss	$ (300)	$ (1,759)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Equity in net loss of joint venture	108	114
Share-based compensation	131	131
Forgiveness of debt	(10)
Bad debt expense	45
Depreciation and amortization	465	448
Gain on disposal of property, plant and equipment	(47)	(10)
Changes in assets and liabilities:
Accounts receivable	1,117	1,038
Inventory		53
Costs and estimated earnings in excess of billings on uncompleted contracts	(231)	(53)
Prepaid expenses and other current assets	88	(8)
Other assets	68	11
Accounts payable and accrued liabilities	(454)	(1,505)
Deferred revenues	(202)	85
Billings in excess of costs and estimated earnings on uncompleted contracts	80	(216)
Net cash provided by (used in) operating activities	858	(1,671)
Cash flows from investing activities:
Purchases of property, plant and equipment	(550)	(499)
Proceeds from sale of property, plant and equipment	67	10
Cash paid for patents	(27)
Cash paid for exclusive product rights	(125)
Cash paid for capitalized software		(19)
Repayments on note receivable		4
Net cash used in investing activities	(635)	(504)
Cash flows from financing activities:
Cash paid for purchase of common stock	(48)
Repayments of long-term debt	(923)	(274)
Net cash used in financing activities	(971)	(274)
Change in cash and equivalents	(748)	(2,449)
Cash and cash equivalents, beginning of period	4,979	3,730
Cash and cash equivalents, end of period	4,231	1,281
Supplemental schedule of significant noncash transactions:
Property, plant and equipment acquired via capital lease	$ 1,200