CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 3,938	$ 3,928
Accounts receivable, net of allowance for doubtful accounts of $142 and $135, respectively	3,560	3,390
Inventories	3,487	2,817
Prepaid expenses and other current assets	373	617
Total current assets	11,358	10,752
Property and equipment, net	9,396	10,180
Intangible assets, net	13,298	13,412
Goodwill	8,803	8,803
Other assets	47	46
Total assets	42,902	43,193
Current liabilities:
Note payable	137	339
Current portion of long-term debt	3,429	1,714
Accounts payable	2,301	1,853
Other accrued liabilities	2,160	1,992
Deferred revenues	413	235
Total current liabilities	8,440	6,133
Long-term liabilities:
Long-term debt, net	8,150	9,752
Senior secured convertible debentures, net	13,386	12,028
Warrant liability	109	105
Deferred tax liability	479	359
Other liabilities	724	97
Total liabilities	31,288	28,474
Commitment and contingencies
Stockholders' equity:
Preferred Stock, $.10 par value, 10,000,000 shares authorized; 2,928 and 6,000 shares issued and outstanding, respectively	0	1
Common Stock, $.001 par value, 150,000,000 shares authorized; 2,477,743 and 2,166,898 shares issued and outstanding, respectively	3	2
Additional paid-in capital	225,624	225,289
Accumulated deficit	(214,015)	(210,575)
Accumulated other comprehensive income	2	2
Total stockholders' equity	11,614	14,719
Total liabilities and stockholders' equity	$ 42,902	$ 43,193