Condensed Consolidated Balance Sheets (Current Period Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
ASSETS
Cash and cash equivalents	$ 247	$ 530
Accounts receivable, net of allowance of $339 and $200, respectively	8,357	15,429
Inventories	3,198	2,419
Prepaid expenses and other current assets	2,630	4,058
Total current assets	14,432	22,436
Property, plant and equipment, net	7,905	7,182
Other intangible assets, net	2,039	2,142
Other assets	755	771
Total assets	25,131	32,531
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	6,535	7,719
Accrued liabilities	5,182	6,476
Deferred revenue		1,379
Capital lease obligations, current maturities	761	425
Revolving credit agreement	636	4,353
Total current liabilities	13,114	20,352
Capital lease obligations, less current maturities	801	497
Mandatorily redeemable series A preferred stock, $.01 par value, authorized 360,000 shares; 171,436 and 178,103 shares issued and outstanding, respectively	16,137	15,393
Convertible notes	4,441	3,590
Other liabilities	2,683	2,703
Total liabilities	37,176	42,535
Commitments and Contingencies
Common stock, $.01 par value, authorized 80,000,000 shares; 8,453,671 issued and 7,214,784 outstanding	84	84
Additional paid-in capital	285,323	285,317
Accumulated deficit	(295,508)	(293,461)
Treasury stock, at cost, 1,238,887 shares repurchased	(1,944)	(1,944)
Total stockholders' equity	(12,045)	(10,004)
Total liabilities and stockholders' equity	$ 25,131	$ 32,531