Consolidated Statements Of Cash Flows (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Cash flows from operating activities:
Net loss	$ (805,000)	$ (796,000)
Adjustments to reconcile net loss to net cash provided by operating activities:
(Income) from discontinued operations	(1,362,000)	(1,776,000)
Provision for bad debts	17,000	12,000
Depreciation and amortization	676,000	1,134,000
Gain on insurance settlement	(192,000)
Loss on disposal of assets	184,000	7,000
Share-based compensation	82,000	140,000
Provision for inventory reserve	23,000
Impairment of capitalized asset in progress		126,000
Changes in operating assets and liabilities:
Decrease in accounts receivable	750,000	877,000
Decrease in inventories, supplies and prepaid expenses	326,000	289,000
(Increase) in other receivables	(199,000)	(112,000)
Decrease in other assets	23,000	17,000
Decrease in accounts payable, accrued payroll, accrued expenses and deferred rent	(635,000)	(27,000)
Net cash used in operating activities	(1,112,000)	(109,000)
Cash flows from investing activities:
Proceeds from the sale of plant and equipment	223,000	6,000
Purchases of plant and equipment	(353,000)	(240,000)
Net cash used in investing activities	(130,000)	(234,000)
Cash flows from financing activities:
Decrease (increase) in restricted cash	66,000	(660,000)
Proceeds from the exercise of stock options		11,000
Proceeds from sale of stock	172,000	83,000
Repurchases of common stock		(281,000)
Principal payments on capital leases	(19,000)	(5,000)
Net cash provided by (used in) financing activities	219,000	(852,000)
Net cash used in continuing operations	(1,023,000)	(1,195,000)
Cash Flows - Discontinued Operations
Cash (used in) provided by operating activities	(1,331,000)	1,821,000
Cash provided by investing activities	3,001,000
Net cash provided by discontinued operations	1,670,000	1,821,000
Increase in cash and cash equivalents	647,000	626,000
Cash and cash equivalents at beginning of period	1,848,000	1,222,000
Cash and cash equivalents at end of period	2,495,000	1,848,000
Cash, cash equivalents - Continuing operations	2,266,000	1,638,000
Cash and cash equivalents - Assets held for sale	229,000	210,000
Total cash and cash equivalents	2,495,000	1,848,000
Supplemental disclosure:
Interest paid	10,000	3,000
Income taxes paid (refunded)	18,000	(18,000)
Capital lease addition for capital equipment		$ 98,000