ACCOUNTS PAYABLE AND ACCRUED EXPENSES (Tables)

6 Months Ended

Jun. 30, 2013

Accounts Payable and Accrued Liabilities, Current [Abstract]

Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]

Accounts payable and accrued expenses consist of the following:

	December 31, 2012		June 30, 2013
Accounts payable	$	3,833,000	$	4,813,000
Accrued warranty		520,000		526,000
Accrued severance				211,000
Accrued compensation		1,182,000		241,000
Other current liabilities		103,000		138,000
	$	5,638,000	$	5,929,000

Schedule of Product Warranty Liability [Table Text Block]

The following table summarizes warranty activity for the six-month periods ended June 30, 2012 and 2013:

	Six Months Ended June 30,
	2012		2013
Accrued warranty reserve, beginning of period	$	752,000	$	520,000
Accrual for product warranties issued		196,000		264,000
Product replacements and other warranty expenditures		(55,000)		(176,000)
Expiration of warranties		(14,000)		(82,000)
Accrued warranty reserve, end of period	$	879,000	$	526,000