Consolidated Balance Sheets (unaudited) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
ASSETS (Note 8)
Cash and cash equivalents	$ 11,443	$ 16,917
Accounts receivable, net of allowance for doubtful accounts of $513 and $525 at June 30, 2012 and December 31, 2011, respectively	16,996	18,387
Inventories	2,844	2,226
Other current assets	1,223	2,140
Total current assets	32,506	39,670
Property, plant and equipment at cost	50,105	54,333
Less: Accumulated depreciation and amortization	36,990	41,281
Property, plant and equipment, net	13,115	13,052
Intangible assets, net	44	195
Other assets	335	364
Total assets	46,000	53,281
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	5,680	5,174
Accrued expenses	6,616	6,173
Total current liabilities	12,296	11,347
Other long-term liabilities	1,292	1,185
Commitments and contingencies (Note 9)
Stockholders' Equity:
Common stock, par value $.04 per share; authorized 240,000,000 shares, issued 69,708,982 shares and 69,678,982 shares as of June 30, 2012 and December 31, 2011, respectively. Outstanding: 69,699,587 shares and 69,669,587 shares at June 30, 2012 and December 31, 2011, respectively.	2,788	2,787
Additional paid-in capital	149,169	148,839
Accumulated deficit	(119,474)	(110,806)
Stockholders' equity before treasury stock	32,483	40,820
Less: Treasury stock, at cost; 9,395 shares as of June 30, 2012 and December 31, 2011	(71)	(71)
Total stockholders' equity	32,412	40,749
Total liabilities and stockholders' equity	$ 46,000	$ 53,281