CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 426	$ 606
Receivables, net	2,041	3,118
Inventories	2,157	1,893
Prepaids and other assets	733	671
Total current assets	5,357	6,288
Long-term assets:
Rental equipment, net	2,813	3,089
Property, plant and equipment, net	2,350	2,292
Goodwill	744	744
Restricted cash	612	612
Other assets	376	389
Total long-term assets	6,895	7,126
TOTAL ASSETS	12,252	13,414
Current liabilities:
Accounts payable	1,714	1,493
Accrued liabilities	6,434	5,800
Current portion of long-term debt	2,008	2,984
Total current liabilities	10,156	10,277
Long-term liabilities:
Long-term debt, less current portion	504	57
Long-term debt - related party	500	500
Deferred pension liability and other	3,599	3,856
Total long-term liabilities	4,603	4,413
Total liabilities	14,759	14,690
Stockholders' deficit:
Preferred Stock Series A - $20 stated value - 416,500 shares authorized; shares issued and outstanding: 0 in 2017 and 2016 and Preferred Stock Series B - $200 stated value - 51,000 shares authorized; shares issued and outstanding: 16,512 in 2017 and 2016 (liquidation preference $3,396,000)	3,302	3,302
Common Stock - $0.001 par value - 10,000,000 shares authorized; shares issued: 1,738,511 in 2017 and 2016; shares outstanding: 1,710,671 in 2017 and 2016	2	2
Additional paid-in-capital	27,935	27,935
Accumulated deficit	(25,097)	(23,842)
Accumulated other comprehensive loss	(5,586)	(5,610)
Treasury stock - at cost - 27,840 common shares in 2017 and 2016	(3,063)	(3,063)
Total stockholders' deficit	(2,507)	(1,276)
TOTAL LIABILITIES AND STOCKHOLDERS' DEFICIT	12,252	13,414
Convertible Preferred Stock [Member] | Series A Preferred Stock [Member]
Stockholders' deficit:
Preferred Stock Series A - $20 stated value - 416,500 shares authorized; shares issued and outstanding: 0 in 2017 and 2016 and Preferred Stock Series B - $200 stated value - 51,000 shares authorized; shares issued and outstanding: 16,512 in 2017 and 2016 (liquidation preference $3,396,000)
Convertible Preferred Stock [Member] | Series B Preferred Stock [Member]
Stockholders' deficit:
Preferred Stock Series A - $20 stated value - 416,500 shares authorized; shares issued and outstanding: 0 in 2017 and 2016 and Preferred Stock Series B - $200 stated value - 51,000 shares authorized; shares issued and outstanding: 16,512 in 2017 and 2016 (liquidation preference $3,396,000)	$ 3,302	$ 3,302