CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 3,127	$ 3,928
Accounts receivable, net of allowance for doubtful accounts of $177 and $135, respectively	3,184	3,390
Inventories	3,533	2,817
Prepaid expenses and other current assets	209	617
Total current assets	10,053	10,752
Property and equipment, net	8,658	10,180
Intangible assets, net	12,302	13,412
Goodwill	8,803	8,803
Other assets	48	46
Total assets	39,864	43,193
Current liabilities:
Note payable	34	339
Current portion of long-term debt	1,936	1,714
Accounts payable	1,907	1,853
Other accrued liabilities	1,899	1,992
Deferred revenues	350	235
Total current liabilities	6,126	6,133
Long-term liabilities:
Long-term debt, net	8,842	9,752
Senior secured convertible debentures, net	0	12,028
Warrant liability	28	105
Deferred tax liability	539	359
Other liabilities	412	97
Total liabilities	15,947	28,474
Commitment and contingencies
Stockholders' equity:
Common Stock, $.001 par value, 150,000,000 shares authorized; 2,477,743 and 2,166,898 shares issued and outstanding, as of September 30, 2017 and December 31, 2016, respectively	3	2
Additional paid-in capital	251,594	225,289
Accumulated deficit	(227,686)	(210,575)
Accumulated other comprehensive income	2	2
Total stockholders' equity	23,917	14,719
Total liabilities and stockholders' equity	39,864	43,193
Series B Convertible Preferred Stock [Member]
Stockholders' equity:
Preferred Stock	0	1
Series C Convertible Preferred Stock [Member]
Stockholders' equity:
Preferred Stock	$ 4	$ 0