CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 616	$ 547
Receivables, less allowance of $567 - 2016 and $559 - 2015	2,590	2,888
Inventories	2,244	1,876
Prepaids and other assets	590	605
Total current assets	6,040	5,916
Rental equipment	21,142	21,134
Less accumulated depreciation	16,860	16,452
Total rental equipment, net	4,282	4,682
Property, plant and equipment	986	2,159
Less accumulated depreciation	506	1,003
Total property, plant and equipment, net	480	1,156
Goodwill	744	744
Restricted cash	215	215
Other assets	398	277
TOTAL ASSETS	12,159	12,990
Current liabilities:
Accounts payable	1,036	1,209
Accrued liabilities	6,932	6,136
Current portion of long-term debt	960	1,031
Total current liabilities	$ 8,928	8,376
Long-term liabilities:
Long-term debt, less current portion		262
Deferred pension liability and other	$ 4,364	4,508
Total long-term liabilities	4,364	4,770
Total liabilities	$ 13,292	$ 13,146
Commitments and contingencies (Note 9)
Stockholders' deficit:
Preferred Series A - $20 stated value - 416,500 shares authorized; shares issued and outstanding: 0 in 2016 and 2015, Preferred Series B - $200 stated value - 51,000 shares authorized; shares issued and outstanding: 16,512 in 2016 and 2015 (liquidation preference $3,374,000)	$ 3,302	$ 3,302
Common - $0.001 par value - 10,000,000 shares authorized; shares issued: 1,738,511 in 2016 and 2015; shares outstanding: 1,710,671 in 2016 and 2015	2	2
Additional paid-in-capital	27,920	27,914
Accumulated deficit	(24,171)	(23,054)
Accumulated other comprehensive loss	(5,123)	(5,257)
Treasury stock - at cost - 27,840 common shares in 2016 and 2015	(3,063)	(3,063)
Total stockholders' deficit	(1,133)	(156)
TOTAL LIABILITIES AND STOCKHOLDERS' DEFICIT	$ 12,159	$ 12,990
Series A Preferred Stock [Member] \| Convertible Preferred Stock [Member]
Stockholders' deficit:
Preferred Series A - $20 stated value - 416,500 shares authorized; shares issued and outstanding: 0 in 2016 and 2015, Preferred Series B - $200 stated value - 51,000 shares authorized; shares issued and outstanding: 16,512 in 2016 and 2015 (liquidation preference $3,374,000)
Series B Preferred Stock [Member] \| Convertible Preferred Stock [Member]
Stockholders' deficit:
Preferred Series A - $20 stated value - 416,500 shares authorized; shares issued and outstanding: 0 in 2016 and 2015, Preferred Series B - $200 stated value - 51,000 shares authorized; shares issued and outstanding: 16,512 in 2016 and 2015 (liquidation preference $3,374,000)	$ 3,302	$ 3,302

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.