Consolidated Balance Sheets (unaudited) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
ASSETS (Note 8)
Cash and cash equivalents	$ 17,965	$ 21,391
Accounts receivable, net of allowance for doubtful accounts of $602 and $910 at September 30, 2011 and December 31, 2010, respectively	20,049	19,484
Inventories	2,673	2,153
Other current assets	1,519	1,899
Total current assets	42,206	44,927
Property, plant and equipment at cost	53,288	49,895
Less: Accumulated depreciation and amortization	40,395	38,248
Property, plant and equipment, net	12,893	11,647
Intangible assets, net	275	537
Other assets	360	368
Total assets	55,734	57,479
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	6,333	6,665
Accrued expenses	7,001	5,941
Total current liabilities	13,334	12,606
Other long-term liabilities	1,255	1,247
Commitments and contingencies
Stockholders' Equity:
Common stock, par value $.04 per share; authorized 240,000,000 shares, issued 69,678,982 shares and 69,598,982 shares as of September 30, 2011 and December 31, 2010, respectively. Outstanding: 69,669,587 shares and 69,589,587 shares at September 30, 2011 and December 31, 2010, respectively.	2,787	2,784
Additional paid-in capital	148,657	148,195
Accumulated deficit	(110,228)	(107,282)
Stockholders' equity before treasury stock	41,216	43,697
Less: Treasury stock, at cost; 9,395 shares as of September 30, 2011 and December 31, 2010	(71)	(71)
Total stockholders' equity	41,145	43,626
Total liabilities and stockholders' equity	$ 55,734	$ 57,479