Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
ASSETS
Cash and cash equivalents	$ 2,667	$ 3,970
Accounts receivable, net of allowance for doubtful accounts of $124 and $153 at March 31, 2014 and December 31, 2013, respectively	9,099	8,398
Inventories	1,457	1,376
Other current assets	1,650	1,597
Assets held for sale	714	714
Total current assets	15,587	16,055
Property, plant and equipment	16,345	16,018
Less: Accumulated depreciation and amortization	12,617	12,257
Property, plant and equipment, net	3,728	3,761
Other assets	1,029	1,830
Total assets	20,344	21,646
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	3,234	3,440
Accrued expenses	5,605	4,036
Total current liabilities	8,839	7,476
Other long-term liabilities	796	870
Commitments and contingencies (Note 10)
Stockholders' Equity:
Common stock, par value $.04 per share; Authorized: 240,000,000 shares; Issued: 70,420,044 shares and 70,382,544 shares at March 31, 2014 and December 31, 2013, respectively; Outstanding: 70,410,649 shares and 70,373,149 shares at March 31, 2014 and December 31, 2013, respectively.	2,817	2,815
Additional paid-in capital	150,327	150,235
Accumulated deficit	(142,364)	(139,679)
Stockholders' equity	10,780	13,371
Less: Treasury stock, at cost; 9,395 shares at March 31, 2014 and December 31, 2013	(71)	(71)
Total stockholders' equity	10,709	13,300
Total liabilities and stockholders' equity	$ 20,344	$ 21,646